RPS-BLAST 2.2.26 [Sep-21-2011]

Database: CDD.v3.10 
           44,354 sequences; 10,937,602 total letters

Searching..................................................done

Query= psy10892
         (135 letters)



>gnl|CDD|240028 cd04671, Nudix_Hydrolase_13, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 123

 Score =  109 bits (273), Expect = 7e-32
 Identities = 45/68 (66%), Positives = 55/68 (80%)

Query: 67  YIVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPT 126
           YIV AVI+N++  VL++QEAK  C G WYLPAG++E GET+EEAVKREV EETGL+  PT
Sbjct: 1   YIVAAVILNNQGEVLLIQEAKRSCRGKWYLPAGRMEPGETIEEAVKREVKEETGLDCEPT 60

Query: 127 TLLAVETA 134
           TLL+VE  
Sbjct: 61  TLLSVEEQ 68


>gnl|CDD|239217 cd02883, Nudix_Hydrolase, Nudix hydrolase is a superfamily of
           enzymes found in all three kingdoms of life, and it
           catalyzes the hydrolysis of NUcleoside DIphosphates
           linked to other moieties, X. Enzymes belonging to this
           superfamily require a divalent cation, such as Mg2+ or
           Mn2+ for their activity. Members of this family are
           recognized by a highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which forms a
           structural motif that functions as a metal binding and
           catalytic site. Substrates of nudix hydrolase include
           intact and oxidatively damaged nucleoside triphosphates,
           dinucleoside polyphosphates, nucleotide-sugars and
           dinucleotide enzymes. These substrates are metabolites
           or cell signaling molecules that require regulation
           during different stages of the cell cycle or during
           periods of stress. In general, the role of the nudix
           hydrolase is to sanitize the nucleotide pools and to
           maintain cell viability, thereby serving as surveillance
           and "house-cleaning" enzymes. Substrate specificity is
           used to define child families within the superfamily.
           Differences in substrate specificity are determined by
           the N-terminal extension or by residues in variable loop
           regions. Mechanistically, substrate hydrolysis occurs by
           a nucleophilic substitution reaction, with variation in
           the numbers and roles of divalent cations required. This
           superfamily consists of at least nine families: IPP
           (isopentenyl diphosphate) isomerase, ADP ribose
           pyrophosphatase, mutT pyrophosphohydrolase, coenzyme-A
           pyrophosphatase,
           MTH1-7,8-dihydro-8-oxoguanine-triphosphatase,
           diadenosine tetraphosphate hydrolase, NADH
           pyrophosphatase, GDP-mannose hydrolase and the
           c-terminal portion of the mutY adenine glycosylase.
          Length = 123

 Score = 73.7 bits (181), Expect = 5e-18
 Identities = 33/65 (50%), Positives = 40/65 (61%), Gaps = 1/65 (1%)

Query: 67  YIVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPT 126
             V AVI++    VL+++ A S   G W LP G VE GETLEEA  REV EETGL++   
Sbjct: 1   VAVGAVILDEDGRVLLVRRADS-PGGLWELPGGGVEPGETLEEAAIREVREETGLDVDVL 59

Query: 127 TLLAV 131
            LL V
Sbjct: 60  RLLGV 64


>gnl|CDD|215841 pfam00293, NUDIX, NUDIX domain. 
          Length = 133

 Score = 71.8 bits (176), Expect = 5e-17
 Identities = 28/64 (43%), Positives = 39/64 (60%), Gaps = 1/64 (1%)

Query: 69  VMAVIINSKNAVLMMQEAKS-ICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTT 127
           V  V++N    VL+++ ++  +  G W LP GKVE GE+ EEA  RE+ EETGL +    
Sbjct: 5   VGVVLLNEDGEVLLVRRSRPPVFPGLWELPGGKVEPGESPEEAAVRELEEETGLRVLLLL 64

Query: 128 LLAV 131
           LL V
Sbjct: 65  LLGV 68


>gnl|CDD|240054 cd04699, Nudix_Hydrolase_39, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 129

 Score = 68.2 bits (167), Expect = 9e-16
 Identities = 30/67 (44%), Positives = 39/67 (58%), Gaps = 2/67 (2%)

Query: 69  VMAVIINSKNAVLMMQEAKS--ICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPT 126
           V A+I+     +L+++ +K      G W LP GKVEEGET EEA+KREV EETGL + P 
Sbjct: 4   VAALIVKDVGRILILKRSKDERTAPGKWELPGGKVEEGETFEEALKREVYEETGLTVTPF 63

Query: 127 TLLAVET 133
                  
Sbjct: 64  LRYPSTV 70


>gnl|CDD|223979 COG1051, COG1051, ADP-ribose pyrophosphatase [Nucleotide transport
           and metabolism].
          Length = 145

 Score = 65.1 bits (159), Expect = 2e-14
 Identities = 28/64 (43%), Positives = 38/64 (59%)

Query: 68  IVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTT 127
           + +  +I     +L+++ A     G W LP G VE GETLEEA +RE+ EETGL +    
Sbjct: 11  VAVGALIVRNGRILLVRRANEPGAGYWALPGGFVEIGETLEEAARRELKEETGLRVRVLE 70

Query: 128 LLAV 131
           LLAV
Sbjct: 71  LLAV 74


>gnl|CDD|240040 cd04684, Nudix_Hydrolase_25, Contains a crystal structure of the
           Nudix hydrolase from Enterococcus faecalis, which has an
           unknown function. In general, members of the Nudix
           hydrolase superfamily catalyze the hydrolysis of
           NUcleoside DIphosphates linked to other moieties, X.
           Enzymes belonging to this superfamily require a divalent
           cation, such as Mg2+ or Mn2+, for their activity. They
           also contain a highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which forms a
           structural motif that functions as a metal binding and
           catalytic site. Substrates of nudix hydrolases include
           intact and oxidatively damaged nucleoside triphosphates,
           dinucleoside polyphosphates, nucleotide-sugars and
           dinucleotide enzymes. These substrates are metabolites
           or cell signaling molecules that require regulation
           during different stages of the cell cycle or during
           periods of stress. In general, the role of the nudix
           hydrolase is to sanitize the nucleotide pools and to
           maintain cell viability, thereby serving as surveillance
           & "house-cleaning" enzymes. Substrate specificity is
           used to define families within the superfamily.
           Differences in substrate specificity are determined by
           the N-terminal extension or by residues in variable loop
           regions. Mechanistically, substrate hydrolysis occurs by
           a nucleophilic substitution reaction, with variation in
           the numbers and roles of divalent cations required.
          Length = 128

 Score = 63.4 bits (155), Expect = 5e-14
 Identities = 26/63 (41%), Positives = 34/63 (53%), Gaps = 1/63 (1%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
             AVI      +L++Q+      G W LP G +E GE+ EEA+ REVLEETGL +     
Sbjct: 3   AYAVIPRD-GKLLLIQKNGGPYEGRWDLPGGGIEPGESPEEALHREVLEETGLTVEIGRR 61

Query: 129 LAV 131
           L  
Sbjct: 62  LGS 64


>gnl|CDD|240030 cd04673, Nudix_Hydrolase_15, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 122

 Score = 63.0 bits (154), Expect = 8e-14
 Identities = 31/63 (49%), Positives = 37/63 (58%), Gaps = 1/63 (1%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
           V AV+      VL+++ A     G W  P GKVE GETLE+A  RE+LEETGLE     L
Sbjct: 3   VGAVVFR-GGRVLLVRRANPPDAGLWSFPGGKVELGETLEQAALRELLEETGLEAEVGRL 61

Query: 129 LAV 131
           L V
Sbjct: 62  LTV 64


>gnl|CDD|240032 cd04676, Nudix_Hydrolase_17, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 129

 Score = 62.3 bits (152), Expect = 2e-13
 Identities = 26/66 (39%), Positives = 39/66 (59%), Gaps = 3/66 (4%)

Query: 68  IVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTT 127
            V AV+ + +  VL+++ +    NG W LP G VE GE+  +   REV EETGL++  T 
Sbjct: 4   GVTAVVRDDEGRVLLIRRSD---NGLWALPGGAVEPGESPADTAVREVREETGLDVEVTG 60

Query: 128 LLAVET 133
           L+ + T
Sbjct: 61  LVGIYT 66


>gnl|CDD|240027 cd04670, Nudix_Hydrolase_12, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 127

 Score = 61.9 bits (151), Expect = 2e-13
 Identities = 23/54 (42%), Positives = 35/54 (64%), Gaps = 1/54 (1%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLE 122
           V  +++N KN VL++QE ++     W LP G V+ GE + +   REVLEETG++
Sbjct: 5   VGGLVLNEKNEVLVVQE-RNKTPNGWKLPGGLVDPGEDIFDGAVREVLEETGID 57


>gnl|CDD|240055 cd04700, DR1025_like, DR1025 from Deinococcus radiodurans, a member
           of the Nudix hydrolase superfamily, show nucleoside
           triphosphatase and dinucleoside polyphosphate
           pyrophosphatase activities. Like other enzymes belonging
           to this superfamily, it requires a divalent cation, in
           this case Mg2+, for its activity. It also contains a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. In general,
           substrates of nudix hydrolases include intact and
           oxidatively damaged nucleoside triphosphates,
           dinucleoside polyphosphates, nucleotide-sugars and
           dinucleotide enzymes. These substrates are metabolites
           or cell signaling molecules that require regulation
           during different stages of the cell cycle or during
           periods of stress. In general, the role of the nudix
           hydrolase is to sanitize the nucleotide pools and to
           maintain cell viability, thereby serving as surveillance
           & "house-cleaning" enzymes. Substrate specificity is
           used to define families within the superfamily.
           Differences in substrate specificity are determined by
           the N-terminal extension or by residues in variable loop
           regions. Mechanistically, substrate hydrolysis occurs by
           a nucleophilic substitution reaction, with variation in
           the numbers and roles of divalent cations required.
          Length = 142

 Score = 62.2 bits (151), Expect = 3e-13
 Identities = 27/59 (45%), Positives = 38/59 (64%)

Query: 71  AVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTLL 129
           AVI+N +N VL++QE      G W++P+G VE+GE  ++A  RE  EETGL + P   L
Sbjct: 18  AVILNERNDVLLVQEKGGPKKGLWHIPSGAVEDGEFPQDAAVREACEETGLRVRPVKFL 76


>gnl|CDD|239517 cd03425, MutT_pyrophosphohydrolase, The MutT pyrophosphohydrolase
           is a prototypical Nudix hydrolase that catalyzes the
           hydrolysis of nucleoside and deoxynucleoside
           triphosphates (NTPs and dNTPs) by substitution at a
           beta-phosphorus to yield a nucleotide monophosphate
           (NMP) and inorganic pyrophosphate (PPi). This enzyme
           requires two divalent cations for activity; one
           coordinates the phosphoryl groups of the NTP/dNTP
           substrate, and the other coordinates to the enzyme. It
           also contains the Nudix motif, a highly conserved
           23-residue block (GX5EX7REUXEEXGU, where U = I, L or V),
           that functions as metal binding and catalytic site. MutT
           pyrophosphohydrolase is important in preventing errors
           in DNA replication by hydrolyzing mutagenic nucleotides
           such as 8-oxo-dGTP (a product of oxidative damage),
           which can mispair with template adenine during DNA
           replication, to guanine nucleotides.
          Length = 124

 Score = 61.0 bits (149), Expect = 4e-13
 Identities = 28/66 (42%), Positives = 39/66 (59%), Gaps = 3/66 (4%)

Query: 68  IVMAVIINSKNAVLMMQ--EAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAP 125
           +V A+II+    +L+ Q    K +  G W  P GKVE GET E+A+ RE+ EE G+E+  
Sbjct: 3   VVAAIIIDDDGRILIAQRPAGKHL-GGLWEFPGGKVEPGETPEQALVRELREELGIEVEV 61

Query: 126 TTLLAV 131
             LLA 
Sbjct: 62  GELLAT 67


>gnl|CDD|240034 cd04678, Nudix_Hydrolase_19, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 129

 Score = 60.4 bits (147), Expect = 8e-13
 Identities = 27/63 (42%), Positives = 34/63 (53%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
           V   ++N K  VL+ +   S   G W LP G +E GE+ EE   REVLEETGL +     
Sbjct: 5   VGVFVLNPKGKVLLGKRKGSHGAGTWALPGGHLEFGESFEECAAREVLEETGLHIENVQF 64

Query: 129 LAV 131
           L V
Sbjct: 65  LTV 67


>gnl|CDD|240036 cd04680, Nudix_Hydrolase_21, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 120

 Score = 60.0 bits (146), Expect = 1e-12
 Identities = 23/61 (37%), Positives = 34/61 (55%), Gaps = 3/61 (4%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
             AV+ ++   VL++   +      WYLP G +E GET  EA +RE+LEE G+ +A    
Sbjct: 3   ARAVVTDADGRVLLV---RHTYGPGWYLPGGGLERGETFAEAARRELLEELGIRLAVVAE 59

Query: 129 L 129
           L
Sbjct: 60  L 60


>gnl|CDD|240052 cd04696, Nudix_Hydrolase_37, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 125

 Score = 57.8 bits (140), Expect = 7e-12
 Identities = 29/66 (43%), Positives = 39/66 (59%), Gaps = 2/66 (3%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
           V A+I      +L+++  K    G W +P GKVE GETLEEA+KRE  EETGL++     
Sbjct: 5   VGALIYAPDGRILLVRTTK--WRGLWGVPGGKVEWGETLEEALKREFREETGLKLRDIKF 62

Query: 129 LAVETA 134
             V+ A
Sbjct: 63  AMVQEA 68


>gnl|CDD|240033 cd04677, Nudix_Hydrolase_18, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 132

 Score = 57.2 bits (139), Expect = 1e-11
 Identities = 25/61 (40%), Positives = 37/61 (60%), Gaps = 3/61 (4%)

Query: 71  AVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTLLA 130
            +++N +  VL+ + +     G W LP G +E GE+LEE  +RE+ EETGLE+    LL 
Sbjct: 12  VILLNEQGEVLLQKRSD---TGDWGLPGGAMELGESLEETARRELKEETGLEVEELELLG 68

Query: 131 V 131
           V
Sbjct: 69  V 69


>gnl|CDD|240029 cd04672, Nudix_Hydrolase_14, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 123

 Score = 56.4 bits (137), Expect = 2e-11
 Identities = 23/63 (36%), Positives = 32/63 (50%), Gaps = 4/63 (6%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
           V A I      +L+++E      G W LP G  + G +  E V +EV EETGL++    L
Sbjct: 5   VRAAIFKD-GKILLVREKSD---GLWSLPGGWADVGLSPAENVVKEVKEETGLDVKVRKL 60

Query: 129 LAV 131
            AV
Sbjct: 61  AAV 63


>gnl|CDD|240035 cd04679, Nudix_Hydrolase_20, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 125

 Score = 55.9 bits (135), Expect = 5e-11
 Identities = 24/61 (39%), Positives = 37/61 (60%)

Query: 71  AVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTLLA 130
           A I+     +L+++  ++   G W +P GKV+  E +E+AV RE+ EETGL +  T LL 
Sbjct: 7   AAILRDDGKLLLVKRLRAPEAGHWGIPGGKVDWMEAVEDAVVREIEEETGLSIHSTRLLC 66

Query: 131 V 131
           V
Sbjct: 67  V 67


>gnl|CDD|239647 cd03675, Nudix_Hydrolase_2, Contains a crystal structure of the
           Nudix hydrolase from Nitrosomonas europaea, which has an
           unknown function. In general, members of the Nudix
           hydrolase superfamily catalyze the hydrolysis of
           NUcleoside DIphosphates linked to other moieties, X.
           Enzymes belonging to this superfamily require a divalent
           cation, such as Mg2+ or Mn2+, for their activity. They
           also contain a highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which forms a
           structural motif that functions as a metal binding and
           catalytic site. Substrates of nudix hydrolases include
           intact and oxidatively damaged nucleoside triphosphates,
           dinucleoside polyphosphates, nucleotide-sugars and
           dinucleotide enzymes. These substrates are metabolites
           or cell signaling molecules that require regulation
           during different stages of the cell cycle or during
           periods of stress. In general, the role of the nudix
           hydrolase is to sanitize the nucleotide pools and to
           maintain cell viability, thereby serving as surveillance
           & "house-cleaning" enzymes. Substrate specificity is
           used to define families within the superfamily.
           Differences in substrate specificity are determined by
           the N-terminal extension or by residues in variable loop
           regions. Mechanistically, substrate hydrolysis occurs by
           a nucleophilic substitution reaction, with variation in
           the numbers and roles of divalent cations required.
          Length = 134

 Score = 55.7 bits (135), Expect = 6e-11
 Identities = 23/64 (35%), Positives = 35/64 (54%), Gaps = 1/64 (1%)

Query: 68  IVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTT 127
           + +A ++      L+++E        +  PAG +E GE+L EA  RE LEETG  + PT 
Sbjct: 1   VTVAAVVERDGRFLLVEEETD-GGLVFNQPAGHLEPGESLIEAAVRETLEETGWHVEPTA 59

Query: 128 LLAV 131
           LL +
Sbjct: 60  LLGI 63


>gnl|CDD|240039 cd04683, Nudix_Hydrolase_24, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 120

 Score = 55.1 bits (133), Expect = 9e-11
 Identities = 20/52 (38%), Positives = 29/52 (55%), Gaps = 1/52 (1%)

Query: 78  NAVLMMQEAKSI-CNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
           + VL+ + A +   +G W LPAG +E+GE    A  RE  EE G+ + P  L
Sbjct: 11  DEVLLQRRANTGYMDGQWALPAGHLEKGEDAVTAAVREAREEIGVTLDPEDL 62


>gnl|CDD|240026 cd04669, Nudix_Hydrolase_11, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 121

 Score = 55.1 bits (133), Expect = 9e-11
 Identities = 26/64 (40%), Positives = 36/64 (56%), Gaps = 5/64 (7%)

Query: 71  AVIINSKNAVLMMQEAKSICNGAWY--LPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
            VIIN +  +L+++  K    G  Y   P G +EEGET EEA KRE LEE GL++    +
Sbjct: 5   IVIINDQGEILLIRRIK---PGKTYYVFPGGGIEEGETPEEAAKREALEELGLDVRVEEI 61

Query: 129 LAVE 132
             + 
Sbjct: 62  FLIV 65


>gnl|CDD|240037 cd04681, Nudix_Hydrolase_22, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 130

 Score = 55.1 bits (133), Expect = 9e-11
 Identities = 23/62 (37%), Positives = 37/62 (59%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
           V  +I+N    +L+++ A+    G   LP G V+ GE+ EEA+ RE+ EETGL++   + 
Sbjct: 4   VGVLILNEDGELLVVRRAREPGKGTLDLPGGFVDPGESAEEALIREIREETGLKVTELSY 63

Query: 129 LA 130
           L 
Sbjct: 64  LF 65


>gnl|CDD|240046 cd04690, Nudix_Hydrolase_31, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 118

 Score = 54.2 bits (131), Expect = 2e-10
 Identities = 24/66 (36%), Positives = 37/66 (56%), Gaps = 3/66 (4%)

Query: 68  IVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTT 127
           I  A+I+     VL+    +      +YLP GK+E GET  +A+ RE+ EE GL++ P +
Sbjct: 2   IAAALILVRDGRVLL---VRKRGTDVFYLPGGKIEAGETPLQALIRELSEELGLDLDPDS 58

Query: 128 LLAVET 133
           L  + T
Sbjct: 59  LEYLGT 64


>gnl|CDD|239519 cd03427, MTH1, MutT homolog-1 (MTH1) is a member of the Nudix
           hydrolase superfamily. MTH1, the mammalian counterpart
           of MutT, hydrolyzes oxidized purine nucleoside
           triphosphates, such as 8-oxo-dGTP and 2-hydroxy-ATP, to
           monophosphates, thereby preventing the incorporation of
           such oxygen radicals during replication. This is an
           important step in the repair mechanism in genomic and
           mitochondrial DNA.  Like other members of the Nudix
           family, it requires a divalent cation, such as Mg2+ or
           Mn2+, for activity, and contain the Nudix motif, a
           highly conserved 23-residue block (GX5EX7REUXEEXGU,
           where U = I, L or V), that functions as a metal binding
           and catalytic site. MTH1 is predominantly localized in
           the cytoplasm and mitochondria. Structurally, this
           enzyme adopts a similar fold to MutT despite low
           sequence similarity outside the conserved nudix motif.
           The most distinctive structural difference between MutT
           and MTH1 is the presence of a beta-hairpin, which is
           absent in MutT. This results in a much deeper and
           narrower substrate binding pocket. Mechanistically, MTH1
           contains dual specificity for nucleotides that contain
           2-OH-adenine bases and those that contain 8-oxo-guanine
           bases.
          Length = 137

 Score = 54.1 bits (131), Expect = 3e-10
 Identities = 23/51 (45%), Positives = 27/51 (52%)

Query: 72  VIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLE 122
             I   + VL++   K    G W  P GKVE GET EE   RE+ EETGL 
Sbjct: 6   CFIKDPDKVLLLNRKKGPGWGGWNGPGGKVEPGETPEECAIRELKEETGLT 56


>gnl|CDD|215184 PLN02325, PLN02325, nudix hydrolase.
          Length = 144

 Score = 53.3 bits (128), Expect = 6e-10
 Identities = 26/70 (37%), Positives = 39/70 (55%)

Query: 62  KKTVTYIVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGL 121
            + +  + + V +   N+VL+ +   SI +  + LP G +E GE+ EE   REV EETGL
Sbjct: 4   GEPIPRVAVVVFLLKGNSVLLGRRRSSIGDSTFALPGGHLEFGESFEECAAREVKEETGL 63

Query: 122 EMAPTTLLAV 131
           E+    LL V
Sbjct: 64  EIEKIELLTV 73


>gnl|CDD|223568 COG0494, MutT, NTP pyrophosphohydrolases including oxidative damage
           repair enzymes [DNA replication, recombination, and
           repair / General function prediction only].
          Length = 161

 Score = 52.9 bits (126), Expect = 1e-09
 Identities = 25/65 (38%), Positives = 32/65 (49%), Gaps = 3/65 (4%)

Query: 68  IVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLE-EAVKREVLEETGLEMAPT 126
           + + V  +    VL+ Q       G W LP GKVE GE L  EA  RE+ EETGL +   
Sbjct: 14  VAVLVGRDGPGEVLLAQRRDDG--GLWELPGGKVEPGEELPEEAAARELEEETGLRVKDE 71

Query: 127 TLLAV 131
            L  +
Sbjct: 72  RLELL 76


>gnl|CDD|239643 cd03671, Ap4A_hydrolase_plant_like, Diadenosine tetraphosphate
           (Ap4A) hydrolase is a member of the Nudix hydrolase
           superfamily. Members of this family are well represented
           in a variety of prokaryotic and eukaryotic organisms.
           Phylogenetic analysis reveals two distinct subgroups
           where plant enzymes fall into one group (represented by
           this subfamily) and fungi/animals/archaea enzymes fall
           into another. Bacterial enzymes are found in both
           subfamilies. Ap4A is a potential by-product of aminoacyl
           tRNA synthesis, and accumulation of Ap4A has been
           implicated in a range of biological events, such as DNA
           replication, cellular differentiation, heat shock,
           metabolic stress, and apoptosis. Ap4A hydrolase cleaves
           Ap4A asymmetrically into ATP and AMP. It is important in
           the invasive properties of bacteria and thus presents a
           potential target for the inhibition of such invasive
           bacteria. Besides the signature nudix motif
           (G[X5]E[X7]REUXEEXGU where U is Ile, Leu, or Val), Ap4A
           hydrolase is structurally similar to the other members
           of the nudix superfamily with some degree of variations.
           Several regions in the sequences are poorly defined and
           substrate and metal binding sites are only predicted
           based on kinetic studies.
          Length = 147

 Score = 51.8 bits (125), Expect = 2e-09
 Identities = 21/54 (38%), Positives = 30/54 (55%), Gaps = 2/54 (3%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLE 122
           V  V+ N    V + +   +   GAW  P G ++EGE  E+A  RE+ EETGL+
Sbjct: 6   VGVVLFNEDGKVFVGRRIDT--PGAWQFPQGGIDEGEDPEQAALRELEEETGLD 57


>gnl|CDD|240044 cd04688, Nudix_Hydrolase_29, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 126

 Score = 51.5 bits (124), Expect = 2e-09
 Identities = 22/63 (34%), Positives = 33/63 (52%), Gaps = 4/63 (6%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
             A+II+    +L+ +         +  P G +E GE+ EEA+ RE  EE GL++  T L
Sbjct: 4   AAAIIIH-NGKLLVQKNPD---ETFYRPPGGGIEFGESSEEALIREFKEELGLKIEITRL 59

Query: 129 LAV 131
           L V
Sbjct: 60  LGV 62


>gnl|CDD|240023 cd04665, Nudix_Hydrolase_8, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 118

 Score = 51.2 bits (123), Expect = 2e-09
 Identities = 21/41 (51%), Positives = 25/41 (60%)

Query: 93  AWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTLLAVET 133
            W  P G VE GET+EEA +REV EETG E+   TL+    
Sbjct: 22  GWEFPGGHVEPGETIEEAARREVWEETGAELGSLTLVGYYQ 62


>gnl|CDD|239948 cd04511, Nudix_Hydrolase_4, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, U=I, L or V), which functions as a
           metal binding and catalytic site. Substrates of nudix
           hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 130

 Score = 51.1 bits (123), Expect = 3e-09
 Identities = 23/64 (35%), Positives = 33/64 (51%)

Query: 68  IVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTT 127
           I++  +   +  VL+ + A    +G W LPAG +E GET E+   RE  EE G  +    
Sbjct: 14  IIVGCVPEWEGKVLLCRRAIEPRHGFWTLPAGFMENGETTEQGALRETWEEAGARVEIDG 73

Query: 128 LLAV 131
           L AV
Sbjct: 74  LYAV 77


>gnl|CDD|182721 PRK10776, PRK10776, nucleoside triphosphate pyrophosphohydrolase;
           Provisional.
          Length = 129

 Score = 50.8 bits (122), Expect = 4e-09
 Identities = 23/67 (34%), Positives = 35/67 (52%), Gaps = 1/67 (1%)

Query: 68  IVMAVIINSKNAVLMMQE-AKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPT 126
           I + +I N  N + + +  A +   G W  P GK+E GET E+A+ RE+ EE G+ +   
Sbjct: 6   IAVGIIRNPNNEIFITRRAADAHMAGKWEFPGGKIEAGETPEQALIRELQEEVGITVQHA 65

Query: 127 TLLAVET 133
           TL     
Sbjct: 66  TLFEKLE 72


>gnl|CDD|240043 cd04687, Nudix_Hydrolase_28, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 128

 Score = 50.5 bits (121), Expect = 5e-09
 Identities = 27/63 (42%), Positives = 34/63 (53%), Gaps = 6/63 (9%)

Query: 71  AVII-NSKNAVLMMQEAKSICNGAWY-LPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
           AVII N K  ++   +      G WY LP G  E GETLE+A  RE  EE G+++    L
Sbjct: 6   AVIIKNDKILLIKHHDD----GGVWYILPGGGQEPGETLEDAAHRECKEEIGIDVEIGPL 61

Query: 129 LAV 131
           L V
Sbjct: 62  LFV 64


>gnl|CDD|239645 cd03673, Ap6A_hydrolase, Diadenosine hexaphosphate (Ap6A) hydrolase
           is a member of the Nudix hydrolase superfamily. Ap6A
           hydrolase specifically hydrolyzes diadenosine
           polyphosphates, but not ATP or diadenosine triphosphate,
           and it generates ATP as the product. Ap6A, the most
           preferred substrate, hydrolyzes to produce two ATP
           molecules, which is a novel hydrolysis mode for Ap6A.
           These results indicate that Ap6A  hydrolase is a
           diadenosine polyphosphate hydrolase. It requires the
           presence of a divalent cation, such as Mn2+, Mg2+, Zn2+,
           and Co2+, for activity. Members of the Nudix superfamily
           are recognized by a highly conserved 23-residue nudix
           motif (GX5EX7REUXEEXGU, where U = I, L or V), which
           forms a structural motif that functions as a metal
           binding and catalytic site.
          Length = 131

 Score = 50.0 bits (120), Expect = 8e-09
 Identities = 18/29 (62%), Positives = 20/29 (68%)

Query: 94  WYLPAGKVEEGETLEEAVKREVLEETGLE 122
           W LP GK+E GET  EA  REV EETG+ 
Sbjct: 29  WSLPKGKLEPGETPPEAAVREVEEETGIR 57


>gnl|CDD|239521 cd03429, NADH_pyrophosphatase, NADH pyrophosphatase, a member of
           the Nudix hydrolase superfamily, catalyzes the cleavage
           of NADH into reduced nicotinamide mononucleotide (NMNH)
           and AMP. Like other members of the Nudix family, it
           requires a divalent cation, such as Mg2+ or Mn2+, for
           activity. Members of this family are also recognized by
           the Nudix motif, a highly conserved 23-residue block
           (GX5EX7REUXEEXGU, where U = I, L or V), that functions
           as a metal binding and catalytic site. A block of 8
           conserved amino acids downstream of the nudix motif is
           thought to give NADH pyrophosphatase its specificity for
           NADH. NADH pyrophosphatase forms a dimer.
          Length = 131

 Score = 49.8 bits (120), Expect = 9e-09
 Identities = 17/25 (68%), Positives = 20/25 (80%)

Query: 98  AGKVEEGETLEEAVKREVLEETGLE 122
           AG VE GE+LEEAV+REV EE G+ 
Sbjct: 31  AGFVEPGESLEEAVRREVKEEVGIR 55


>gnl|CDD|234820 PRK00714, PRK00714, RNA pyrophosphohydrolase; Reviewed.
          Length = 156

 Score = 50.2 bits (121), Expect = 1e-08
 Identities = 17/53 (32%), Positives = 28/53 (52%), Gaps = 2/53 (3%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGL 121
           V  +++N +  V   +        +W  P G ++ GET E+A+ RE+ EE GL
Sbjct: 11  VGIILLNRQGQVFWGRRIGQG--HSWQFPQGGIDPGETPEQAMYRELYEEVGL 61


>gnl|CDD|239516 cd03424, ADPRase_NUDT5, ADP-ribose pyrophosphatase (ADPRase)
           catalyzes the hydrolysis of ADP-ribose and a variety of
           additional ADP-sugar conjugates to AMP and
           ribose-5-phosphate. Like other members of the Nudix
           hydrolase superfamily, it requires a divalent cation,
           such as Mg2+, for its activity. It also contains a
           highly conserved 23-residue Nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V) which functions
           as a metal binding site/catalytic site. In addition to
           the Nudix motif, there are additional conserved amino
           acid residues, distal from the signature sequence, that
           correlate with substrate specificity. In humans, there
           are four distinct ADPRase activities, three putative
           cytosolic enzymes (ADPRase-I, -II, and -Mn) and a single
           mitochondrial enzyme (ADPRase-m). Human ADPRase-II is
           also referred to as NUDT5. It lacks the N-terminal
           target sequence unique to mitochondrial ADPRase. The
           different cytosolic types are distinguished by their
           specificities for substrate and specific requirement for
           metal ions. NUDT5 forms a homodimer.
          Length = 137

 Score = 49.8 bits (120), Expect = 1e-08
 Identities = 16/27 (59%), Positives = 20/27 (74%)

Query: 96  LPAGKVEEGETLEEAVKREVLEETGLE 122
           LPAG ++ GE  EEA +RE+ EETG E
Sbjct: 33  LPAGLIDPGEDPEEAARRELEEETGYE 59


>gnl|CDD|236361 PRK08999, PRK08999, hypothetical protein; Provisional.
          Length = 312

 Score = 49.9 bits (120), Expect = 4e-08
 Identities = 21/56 (37%), Positives = 33/56 (58%), Gaps = 1/56 (1%)

Query: 68  IVMAVIINSKNAVLMMQEAKSI-CNGAWYLPAGKVEEGETLEEAVKREVLEETGLE 122
           +   VI ++   +L+ +  +     G W  P GKVE GET+E+A+ RE+ EE G+E
Sbjct: 7   VAAGVIRDADGRILLARRPEGKHQGGLWEFPGGKVEPGETVEQALARELQEELGIE 62


>gnl|CDD|239520 cd03428, Ap4A_hydrolase_human_like, Diadenosine tetraphosphate
           (Ap4A) hydrolase is a member of the Nudix hydrolase
           superfamily. Ap4A hydrolases are well represented in a
           variety of prokaryotic and eukaryotic organisms.
           Phylogenetic analysis reveals two distinct subgroups
           where plant enzymes fall into one subfamily and
           fungi/animals/archaea enzymes, represented by this
           subfamily, fall into another. Bacterial enzymes are
           found in both subfamilies. Ap4A is a potential
           by-product of aminoacyl tRNA synthesis, and accumulation
           of Ap4A has been implicated in a range of biological
           events, such as DNA replication, cellular
           differentiation, heat shock, metabolic stress, and
           apoptosis. Ap4A hydrolase cleaves Ap4A asymmetrically
           into ATP and AMP. It is important in the invasive
           properties of bacteria and thus presents a potential
           target for inhibition of such invasive bacteria. Besides
           the signature nudix motif (G[X5]E[X7]REUXEEXGU, where U
           is Ile, Leu, or Val) that functions as a metal binding
           and catalytic site, and a required divalent cation, Ap4A
           hydrolase is structurally similar to the other members
           of the nudix superfamily with some degree of variation.
           Several regions in the sequences are poorly defined and
           substrate and metal binding sites are only predicted
           based on kinetic studies.
          Length = 130

 Score = 47.6 bits (114), Expect = 6e-08
 Identities = 21/55 (38%), Positives = 26/55 (47%), Gaps = 7/55 (12%)

Query: 71  AVIINSKN---AVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLE 122
           A+I    N     L++Q +     G W  P G VE GE   EA  RE  EETG+ 
Sbjct: 7   AIIYRRLNNEIEYLLLQASY----GHWDFPKGHVEPGEDDLEAALRETEEETGIT 57


>gnl|CDD|240025 cd04667, Nudix_Hydrolase_10, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 112

 Score = 47.3 bits (113), Expect = 7e-08
 Identities = 17/32 (53%), Positives = 22/32 (68%)

Query: 91  NGAWYLPAGKVEEGETLEEAVKREVLEETGLE 122
              W LP GK+E GET  +A +RE+ EETGL+
Sbjct: 20  GSRWALPGGKIEPGETPLQAARRELQEETGLQ 51


>gnl|CDD|240050 cd04694, Nudix_Hydrolase_35, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 143

 Score = 47.1 bits (112), Expect = 1e-07
 Identities = 24/58 (41%), Positives = 33/58 (56%), Gaps = 3/58 (5%)

Query: 71  AVIINSKN-AVLMMQEAKSICN--GAWYLPAGKVEEGETLEEAVKREVLEETGLEMAP 125
           AV++ S +  +L+ + A S+      W  P G VE GE L EA  RE+ EETGL + P
Sbjct: 5   AVLLQSSDQKLLLTRRASSLRIFPNVWVPPGGHVELGENLLEAGLRELNEETGLTLDP 62


>gnl|CDD|240022 cd04664, Nudix_Hydrolase_7, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 129

 Score = 46.2 bits (110), Expect = 3e-07
 Identities = 21/53 (39%), Positives = 30/53 (56%), Gaps = 1/53 (1%)

Query: 80  VLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTLLAVE 132
           VL+++ +     G W    G +E+GE+  EA +REV EETGL+    TLL   
Sbjct: 17  VLLLRRSDKY-AGFWQSVTGGIEDGESPAEAARREVAEETGLDPERLTLLDRG 68


>gnl|CDD|131752 TIGR02705, nudix_YtkD, nucleoside triphosphatase YtkD.  The
           functional assignment to the proteins of this family is
           contentious. Reference challenges the findings of
           reference , both in interpretation and in enzyme assay
           results. This protein belongs to the nudix family and
           shares some sequence identity with E. coli MutT but
           appears not to be functionally interchangeable with it
           [DNA metabolism, DNA replication, recombination, and
           repair].
          Length = 156

 Score = 46.6 bits (111), Expect = 3e-07
 Identities = 17/24 (70%), Positives = 19/24 (79%)

Query: 97  PAGKVEEGETLEEAVKREVLEETG 120
           P GKVE GET +EA  REV+EETG
Sbjct: 50  PGGKVEPGETSKEAAIREVMEETG 73


>gnl|CDD|234699 PRK00241, nudC, NADH pyrophosphatase; Reviewed.
          Length = 256

 Score = 47.2 bits (113), Expect = 3e-07
 Identities = 16/25 (64%), Positives = 21/25 (84%)

Query: 98  AGKVEEGETLEEAVKREVLEETGLE 122
           AG VE GETLE+ V REV+EE+G++
Sbjct: 162 AGFVEVGETLEQCVAREVMEESGIK 186


>gnl|CDD|225373 COG2816, NPY1, NTP pyrophosphohydrolases containing a Zn-finger,
           probably nucleic-acid-binding [DNA replication,
           recombination, and repair].
          Length = 279

 Score = 47.3 bits (113), Expect = 3e-07
 Identities = 26/64 (40%), Positives = 33/64 (51%), Gaps = 6/64 (9%)

Query: 59  PRLKKTVTYIVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEE 118
           PR+   V  IV   +I     +L          G + L AG VE GETLE+AV REV EE
Sbjct: 141 PRIDPCV--IVA--VIRGDEILLARHPRHF--PGMYSLLAGFVEPGETLEQAVAREVFEE 194

Query: 119 TGLE 122
            G++
Sbjct: 195 VGIK 198


>gnl|CDD|239522 cd03430, GDPMH, GDP-mannose glycosyl hydrolase (AKA GDP-mannose
           mannosyl hydrolase (GDPMH)) is a member of the Nudix
           hydrolase superfamily. This class of enzymes is unique
           from other members of the superfamily in two aspects.
           First, it contains a modified Nudix signature sequence.
           The slight changes to the conserved sequence motif,
           GX5EX7REUXEEXGU, where U = I, L or V), are believed to
           contribute to the removal of all magnesium binding sites
           but one, retaining only the metal site that coordinates
           the pyrophosphate of the substrate. Secondly, it is not
           a pyrophosphatase that substitutes at a phosphorus;
           instead, it hydrolyzes nucleotide sugars such as
           GDP-mannose to GDP and mannose, cleaving the
           phosphoglycosyl bond by substituting at a carbon
           position. GDP-mannose provides mannosyl components for
           cell wall synthesis and is required for the synthesis of
           other glycosyl donors (such as GDP-fucose and colitose)
           for the cell wall. The importance of GDP-sugar hydrolase
           activities is thus closely related to the regulation of
           cell wall biosynthesis. Enzymes in this family are
           believed to regulate the concentration of GDP-mannose
           and GDP-glucose in the bacterial cell wall.
          Length = 144

 Score = 45.8 bits (109), Expect = 4e-07
 Identities = 16/52 (30%), Positives = 27/52 (51%)

Query: 72  VIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEM 123
           ++ N     L+ +       G W++P G++ + ETL EA +R   +E GLE 
Sbjct: 18  IVENEDGQYLLGKRTNRPAQGYWFVPGGRIRKNETLTEAFERIAKDELGLEF 69


>gnl|CDD|239646 cd03674, Nudix_Hydrolase_1, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity. They also
           contain a highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, U=I, L or V), which forms a structural
           motif that functions as a metal binding and catalytic
           site. Substrates of nudix hydrolases include intact and
           oxidatively damaged nucleoside triphosphates,
           dinucleoside polyphosphates, nucleotide-sugars and
           dinucleotide enzymes. These substrates are metabolites
           or cell signaling molecules that require regulation
           during different stages of the cell cycle or during
           periods of stress. In general, the role of the nudix
           hydrolase is to sanitize the nucleotide pools and to
           maintain cell viability, thereby serving as surveillance
           & "house-cleaning" enzymes. Substrate specificity is
           used to define families within the superfamily.
           Differences in substrate specificity are determined by
           the N-terminal extension or by residues in variable loop
           regions. Mechanistically, substrate hydrolysis occurs by
           a nucleophilic substitution reaction, with variation in
           the numbers and roles of divalent cations required.
          Length = 138

 Score = 45.0 bits (107), Expect = 6e-07
 Identities = 22/65 (33%), Positives = 34/65 (52%), Gaps = 4/65 (6%)

Query: 71  AVIIN-SKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTLL 129
           A ++N  +  VL+    K    G+W  P G ++  E+L EA  RE+ EETG+E+     L
Sbjct: 7   AFVVNPDRGKVLLTHHRKL---GSWLQPGGHIDPDESLLEAALRELREETGIELLGLRPL 63

Query: 130 AVETA 134
           +V   
Sbjct: 64  SVLVD 68


>gnl|CDD|185369 PRK15472, PRK15472, nucleoside triphosphatase NudI; Provisional.
          Length = 141

 Score = 45.1 bits (107), Expect = 7e-07
 Identities = 20/58 (34%), Positives = 34/58 (58%), Gaps = 2/58 (3%)

Query: 68  IVMAVIINSKNAVLM--MQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEM 123
            ++  +I +  A L+  M + + +  G W L  G VE GE +EEA++RE+ EE G ++
Sbjct: 5   TIVCPLIQNDGAYLLCKMADDRGVFPGQWALSGGGVEPGERIEEALRREIREELGEQL 62


>gnl|CDD|240031 cd04674, Nudix_Hydrolase_16, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 118

 Score = 44.0 bits (104), Expect = 1e-06
 Identities = 18/34 (52%), Positives = 24/34 (70%)

Query: 92  GAWYLPAGKVEEGETLEEAVKREVLEETGLEMAP 125
           G   LP G +E GET ++AV RE+LEETG+ + P
Sbjct: 29  GKLALPGGFIELGETWQDAVARELLEETGVAVDP 62


>gnl|CDD|240041 cd04685, Nudix_Hydrolase_26, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily requires a divalent
           cation, such as Mg2+ or Mn2+, for their activity and
           contain a highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 133

 Score = 43.9 bits (104), Expect = 1e-06
 Identities = 16/31 (51%), Positives = 23/31 (74%)

Query: 94  WYLPAGKVEEGETLEEAVKREVLEETGLEMA 124
           W+ P G VE GE+ E+A +RE+ EETG+ +A
Sbjct: 30  WFTPGGGVEPGESPEQAARRELREETGITVA 60


>gnl|CDD|182536 PRK10546, PRK10546, pyrimidine (deoxy)nucleoside triphosphate
           pyrophosphohydrolase; Provisional.
          Length = 135

 Score = 44.0 bits (104), Expect = 2e-06
 Identities = 24/63 (38%), Positives = 33/63 (52%), Gaps = 1/63 (1%)

Query: 69  VMAVIINSKNAVLMMQE-AKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTT 127
           V+A II     +L+ Q  A S   G W    GKVE GE+  +A+ RE+ EE G+E     
Sbjct: 6   VVAAIIERDGKILLAQRPAHSDQAGLWEFAGGKVEPGESQPQALIRELREELGIEATVGE 65

Query: 128 LLA 130
            +A
Sbjct: 66  YVA 68


>gnl|CDD|240045 cd04689, Nudix_Hydrolase_30, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U=I, L or V), which functions as
           a metal binding and catalytic site. Substrates of nudix
           hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 125

 Score = 43.5 bits (103), Expect = 2e-06
 Identities = 24/67 (35%), Positives = 38/67 (56%), Gaps = 5/67 (7%)

Query: 67  YIVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPT 126
               A++  + N VL+   A+ I    ++LP G VE GET E A++RE+ EE G+ ++  
Sbjct: 2   LRARAIVR-AGNKVLL---ARVIGQPHYFLPGGHVEPGETAENALRRELQEELGVAVSDG 57

Query: 127 TLL-AVE 132
             L A+E
Sbjct: 58  RFLGAIE 64


>gnl|CDD|235436 PRK05379, PRK05379, bifunctional nicotinamide mononucleotide
           adenylyltransferase/ADP-ribose pyrophosphatase;
           Provisional.
          Length = 340

 Score = 45.0 bits (107), Expect = 2e-06
 Identities = 23/59 (38%), Positives = 34/59 (57%), Gaps = 1/59 (1%)

Query: 71  AVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTLL 129
           AV++ S   VL+++       G W LP G +E+ ETL +A  RE+ EETGL++    L 
Sbjct: 208 AVVVQS-GHVLLVRRRAEPGKGLWALPGGFLEQDETLLDACLRELREETGLKLPEPVLR 265


>gnl|CDD|240038 cd04682, Nudix_Hydrolase_23, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 122

 Score = 43.5 bits (103), Expect = 2e-06
 Identities = 18/42 (42%), Positives = 22/42 (52%)

Query: 92  GAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTLLAVET 133
           G W LP G  E GET  E V RE+LEE GL +  + +     
Sbjct: 29  GHWDLPGGHREGGETPLECVLRELLEEIGLTLPESRIPWFRV 70


>gnl|CDD|200031 TIGR00586, mutt, mutator mutT protein.  All proteins in this family
           for which functions are known are involved in repairing
           oxidative damage to dGTP (they are 8-oxo-dGTPases). This
           family is based on the phylogenomic analysis of JA Eisen
           (1999, Ph.D. Thesis, Stanford University). Lowering the
           threshold picks up members of MutT superfamily well [DNA
           metabolism, DNA replication, recombination, and repair].
          Length = 128

 Score = 43.3 bits (102), Expect = 3e-06
 Identities = 19/58 (32%), Positives = 29/58 (50%), Gaps = 1/58 (1%)

Query: 68  IVMAVIINSKNAVLMMQEAKS-ICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMA 124
           I + +I N    +++ + A   +       P GK E GET E+AV RE+ EE G+   
Sbjct: 6   IAVGIIRNENGEIIITRRADGHMFAKLLEFPGGKEEGGETPEQAVVRELEEEIGIPQH 63


>gnl|CDD|240042 cd04686, Nudix_Hydrolase_27, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 131

 Score = 42.3 bits (100), Expect = 6e-06
 Identities = 18/52 (34%), Positives = 28/52 (53%), Gaps = 4/52 (7%)

Query: 69  VMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETG 120
           V A+I+     +L++    +   G +  P G VE+GE   E + RE+ EETG
Sbjct: 3   VRAIILQGDK-ILLLY---TKRYGDYKFPGGGVEKGEDHIEGLIRELQEETG 50


>gnl|CDD|240051 cd04695, Nudix_Hydrolase_36, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 131

 Score = 42.1 bits (99), Expect = 8e-06
 Identities = 22/56 (39%), Positives = 33/56 (58%), Gaps = 4/56 (7%)

Query: 69  VMAVIINSKNA---VLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGL 121
           V  V++ S +    VL+++  K++  G W   AG VE GET  +A  RE+ EETG+
Sbjct: 2   VSGVLLRSLDKETKVLLLKRVKTL-GGFWCHVAGGVEAGETAWQAALRELKEETGI 56


>gnl|CDD|236516 PRK09438, nudB, dihydroneopterin triphosphate pyrophosphatase;
           Provisional.
          Length = 148

 Score = 42.2 bits (100), Expect = 1e-05
 Identities = 22/58 (37%), Positives = 31/58 (53%), Gaps = 3/58 (5%)

Query: 72  VIINSKNA-VLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
           V+I + +  VLM+Q A       W    G +EEGET  +   REV EETG+++    L
Sbjct: 12  VVIYTPDLGVLMLQRADD--PDFWQSVTGSLEEGETPAQTAIREVKEETGIDVLAEQL 67


>gnl|CDD|240021 cd04663, Nudix_Hydrolase_6, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes belong
           to this superfamily requires a divalent cation, such as
           Mg2+ or Mn2+ for their activity and contain a highly
           conserved 23-residue nudix motif (GX5EX7REUXEEXGU, U=I,
           L or V) which functions as metal binding and catalytic
           site. Substrates of nudix hydrolase include intact and
           oxidatively damaged nucleoside triphosphates,
           dinucleoside polyphosphates, nucleotide-sugars and
           dinucleotide enzymes. These substrates are metabolites
           or cell signaling molecules that require regulation
           during different stages of the cell cycle or during
           periods of stress. In general, the role of the nudix
           hydrolase is to sanitize the nucleotide pools and to
           maintain cell viability, thereby serving as surveillance
           & "house-cleaning" enzymes. Substrate specificity is
           used to define families within the superfamily.
           Differences in substrate specificity are determined by
           the N-terminal extension or by residues in variable loop
           regions. Mechanistically, substrate hydrolysis occurs by
           a nucleophilic substitution reaction, with variation in
           the numbers and roles of divalent cations required.
          Length = 126

 Score = 40.6 bits (95), Expect = 3e-05
 Identities = 14/26 (53%), Positives = 17/26 (65%)

Query: 96  LPAGKVEEGETLEEAVKREVLEETGL 121
           +  G VE GET E A  RE+ EE+GL
Sbjct: 28  IVKGTVEPGETPEAAALRELQEESGL 53


>gnl|CDD|240020 cd04662, Nudix_Hydrolase_5, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 126

 Score = 39.0 bits (91), Expect = 1e-04
 Identities = 16/31 (51%), Positives = 18/31 (58%)

Query: 92  GAWYLPAGKVEEGETLEEAVKREVLEETGLE 122
           GAW +P G+  EGE    A KRE  EETG  
Sbjct: 33  GAWSIPKGEYTEGEDPLLAAKREFSEETGFC 63


>gnl|CDD|226604 COG4119, COG4119, Predicted NTP pyrophosphohydrolase [DNA
           replication, recombination, and repair / General
           function prediction only].
          Length = 161

 Score = 39.1 bits (91), Expect = 1e-04
 Identities = 13/30 (43%), Positives = 17/30 (56%)

Query: 92  GAWYLPAGKVEEGETLEEAVKREVLEETGL 121
           GAW +P G+   GE    A +RE  EE G+
Sbjct: 36  GAWSIPKGEYTGGEDPWLAARREFSEEIGI 65


>gnl|CDD|239644 cd03672, Dcp2p, mRNA decapping enzyme 2 (Dcp2p), the catalytic
           subunit, and Dcp1p are the two components of the
           decapping enzyme complex. Decapping is a key step in
           both general and nonsense-mediated 5'->3' mRNA-decay
           pathways. Dcp2p contains an all-alpha helical N-terminal
           domain and a C-terminal domain which has the Nudix fold.
           While decapping is not dependent on the N-terminus of
           Dcp2p, it does affect its efficiency. Dcp1p binds the
           N-terminal domain of Dcp2p stimulating the decapping
           activity of Dcp2p. Decapping permits the degradation of
           the transcript and is a site of numerous control inputs.
           It is responsible for nonsense-mediated decay as well as
           AU-rich element (ARE)-mediated decay. In addition, it
           may also play a role in the levels of mRNA. Enzymes
           belonging to the Nudix superfamily require a divalent
           cation, such as Mg2+ or Mn2+, for their activity and are
           recognized by a highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V).
          Length = 145

 Score = 38.4 bits (90), Expect = 2e-04
 Identities = 19/56 (33%), Positives = 31/56 (55%), Gaps = 4/56 (7%)

Query: 71  AVIIN-SKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAP 125
           A+I+N   + VL+++  KS     W  P GK+ + E   +   REV EETG +++ 
Sbjct: 6   AIILNEDLDKVLLVKGWKS--KS-WSFPKGKINKDEDDHDCAIREVYEETGFDISK 58


>gnl|CDD|240049 cd04693, Nudix_Hydrolase_34, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 127

 Score = 38.1 bits (89), Expect = 2e-04
 Identities = 24/62 (38%), Positives = 32/62 (51%), Gaps = 4/62 (6%)

Query: 68  IVMAVIINSKNAVLMMQ--EAKSICNGAWYLPA-GKVEEGETLEEAVKREVLEETGLEMA 124
           +V   I NSK  +L+ +    K    G W L   G V+ GET   A +REV EE GLE+ 
Sbjct: 2   VVHVCIFNSKGELLLQKRSPNKDGWPGMWDLSVGGHVQAGETST-AAEREVKEELGLELD 60

Query: 125 PT 126
            +
Sbjct: 61  FS 62


>gnl|CDD|240024 cd04666, Nudix_Hydrolase_9, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 122

 Score = 37.6 bits (88), Expect = 3e-04
 Identities = 15/43 (34%), Positives = 23/43 (53%), Gaps = 3/43 (6%)

Query: 80  VLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLE 122
           VL++   ++   G W +P G  E+ E+  EA  RE  EE G+ 
Sbjct: 17  VLLVTSRRT---GRWIVPKGGPEKDESPAEAAAREAWEEAGVR 56


>gnl|CDD|182682 PRK10729, nudF, ADP-ribose pyrophosphatase NudF; Provisional.
          Length = 202

 Score = 38.2 bits (89), Expect = 3e-04
 Identities = 13/25 (52%), Positives = 19/25 (76%)

Query: 98  AGKVEEGETLEEAVKREVLEETGLE 122
           AG +EEGE++E+  +RE +EE GL 
Sbjct: 88  AGMIEEGESVEDVARREAIEEAGLI 112


>gnl|CDD|240047 cd04691, Nudix_Hydrolase_32, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 117

 Score = 36.7 bits (85), Expect = 7e-04
 Identities = 21/56 (37%), Positives = 31/56 (55%), Gaps = 2/56 (3%)

Query: 76  SKNAVLMMQ--EAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTLL 129
           S + VL+ +    K+   G   +P G +E GE+ EEA+ REV EE G++    T L
Sbjct: 9   SDDKVLLERRSLTKNADPGKLNIPGGHIEAGESQEEALLREVQEELGVDPLSYTYL 64


>gnl|CDD|239518 cd03426, CoAse, Coenzyme A pyrophosphatase (CoAse), a member of the
           Nudix hydrolase superfamily, functions to catalyze the
           elimination of oxidized inactive CoA, which can inhibit
           CoA-utilizing enzymes. The need of CoAses mainly arises
           under conditions of oxidative stress. CoAse has a
           conserved Nudix fold and requires a single divalent
           cation for catalysis. In addition to a signature Nudix
           motif G[X5]E[X7]REUXEEXGU, where U is  Ile, Leu, or Val,
           CoAse contains an additional motif upstream called the
           NuCoA motif (LLTXT(SA)X3RX3GX3FPGG) which is postulated
           to be involved in CoA recognition. CoA plays a central
           role in lipid metabolism. It is involved in the initial
           steps of fatty acid sythesis in the cytosol, in the
           oxidation of fatty acids and the citric acid cycle in
           the mitochondria, and in the oxidation of long-chain
           fatty acids in peroxisomes. CoA has the important role
           of activating fatty acids for further modification into
           key biological signalling molecules.
          Length = 157

 Score = 36.7 bits (86), Expect = 0.001
 Identities = 13/35 (37%), Positives = 15/35 (42%), Gaps = 1/35 (2%)

Query: 96  LPAGKVEEG-ETLEEAVKREVLEETGLEMAPTTLL 129
            P GKV+ G E       RE  EE GL      +L
Sbjct: 36  FPGGKVDPGDEDPVATALREAEEEIGLPPDSVEVL 70


>gnl|CDD|239642 cd03670, ADPRase_NUDT9, ADP-ribose pyrophosphatase (ADPRase)
           catalyzes the hydrolysis of ADP-ribose to AMP and
           ribose-5-P.  Like other members of the Nudix hydrolase
           superfamily of enzymes, it is thought to require a
           divalent cation, such as Mg2+, for its activity. It also
           contains a 23-residue Nudix motif (GX5EX7REUXEEXGU,
           where U = I, L or V) which functions as a metal binding
           site/catalytic site. In addition to the Nudix motif,
           there are additional conserved amino acid residues,
           distal from the signature sequence, that correlate with
           substrate specificity. In humans, there are four
           distinct ADPRase activities, three putative cytosolic
           (ADPRase-I, -II, and -Mn) and a single mitochondrial
           enzyme (ADPRase-m). ADPRase-m is also known as NUDT9. It
           can be distinugished from the cytosolic ADPRase by a
           N-terminal target sequence unique to mitochondrial
           ADPRase. NUDT9 functions as a monomer.
          Length = 186

 Score = 36.7 bits (85), Expect = 0.001
 Identities = 15/43 (34%), Positives = 21/43 (48%)

Query: 76  SKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEE 118
           S   +L     K   +G W +P G V+ GE +   +KRE  EE
Sbjct: 44  SGKPILQFVAIKRPDSGEWAIPGGMVDPGEKISATLKREFGEE 86


>gnl|CDD|237966 PRK15434, PRK15434, GDP-mannose mannosyl hydrolase NudD;
           Provisional.
          Length = 159

 Score = 36.7 bits (85), Expect = 0.001
 Identities = 20/69 (28%), Positives = 36/69 (52%)

Query: 55  ESFVPRLKKTVTYIVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKRE 114
           E F   ++ T    +  ++ NS+   L+ +       G W++P G+V++ ETLE A +R 
Sbjct: 6   EDFATVVRSTPLISLDFIVENSRGEFLLGKRTNRPAQGYWFVPGGRVQKDETLEAAFERL 65

Query: 115 VLEETGLEM 123
            + E GL +
Sbjct: 66  TMAELGLRL 74


>gnl|CDD|183303 PRK11762, nudE, adenosine nucleotide hydrolase NudE; Provisional.
          Length = 185

 Score = 35.2 bits (82), Expect = 0.004
 Identities = 12/26 (46%), Positives = 15/26 (57%)

Query: 96  LPAGKVEEGETLEEAVKREVLEETGL 121
            P G ++ GET  EA  RE+ EE G 
Sbjct: 78  FPKGLIDPGETPLEAANRELKEEVGF 103


>gnl|CDD|240019 cd04661, MRP_L46, Mitochondrial ribosomal protein L46 (MRP L46) is
           a component of the large subunit (39S) of the mammalian
           mitochondrial ribosome and a member of the Nudix
           hydrolase superfamily. MRPs are thought to be involved
           in the maintenance of the mitochondrial DNA. In general,
           members of the Nudix superfamily require a divalent
           cation, such as Mg2+ or Mn2+, for activity and contain
           the Nudix motif, a highly conserved 23-residue block
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. MRP L46 appears
           to contain a modified nudix motif.
          Length = 132

 Score = 34.3 bits (79), Expect = 0.007
 Identities = 18/49 (36%), Positives = 25/49 (51%), Gaps = 1/49 (2%)

Query: 76  SKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMA 124
               VL++Q+ K      W LP GK EEGETL +  +R + E  G  + 
Sbjct: 11  DDTLVLLVQQ-KVGSQNHWILPQGKREEGETLRQTAERTLKELCGNNLK 58


>gnl|CDD|240053 cd04697, Nudix_Hydrolase_38, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 126

 Score = 33.2 bits (76), Expect = 0.017
 Identities = 19/65 (29%), Positives = 32/65 (49%), Gaps = 6/65 (9%)

Query: 66  TYIVMAVIINSKNAVLMMQ--EAKSICNGAWYLPAGK-VEEGETLEEAVKREVLEETGLE 122
           TYI    + NS+  + + +    K  C G W +  G  V+ GE+  +  +RE+ EE G++
Sbjct: 3   TYIF---VFNSEGKLCVHKRTLTKDWCPGYWDIAFGGVVQAGESYLQNAQRELEEELGID 59

Query: 123 MAPTT 127
               T
Sbjct: 60  GVQLT 64


>gnl|CDD|129162 TIGR00052, TIGR00052, nudix-type nucleoside diphosphatase,
           YffH/AdpP family.  Members of this family include
           proteins of about 200 amino acids, including the
           recently characterized nudix hydrolase YffH, shows to be
           highly active as a GDP-mannose pyrophosphatase. It also
           includes the C-terminal half of a 361-amino acid
           protein, TrgB from Rhodobacter sphaeroides, shown
           experimentally to help confer tellurite resistance. This
           model also hits a region near the C-terminus of a
           1092-amino acid protein of C. elegans [Unknown function,
           Enzymes of unknown specificity].
          Length = 185

 Score = 33.3 bits (76), Expect = 0.017
 Identities = 13/32 (40%), Positives = 20/32 (62%)

Query: 96  LPAGKVEEGETLEEAVKREVLEETGLEMAPTT 127
           L AG VE+GE+ E+  +RE +EE G ++    
Sbjct: 81  LSAGMVEKGESPEDVARREAIEEAGYQVKNLR 112


>gnl|CDD|240048 cd04692, Nudix_Hydrolase_33, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes
           belonging to this superfamily require a divalent cation,
           such as Mg2+ or Mn2+, for their activity and contain a
           highly conserved 23-residue nudix motif
           (GX5EX7REUXEEXGU, where U = I, L or V), which functions
           as a metal binding and catalytic site. Substrates of
           nudix hydrolases include intact and oxidatively damaged
           nucleoside triphosphates, dinucleoside polyphosphates,
           nucleotide-sugars and dinucleotide enzymes. These
           substrates are metabolites or cell signaling molecules
           that require regulation during different stages of the
           cell cycle or during periods of stress. In general, the
           role of the nudix hydrolase is to sanitize the
           nucleotide pools and to maintain cell viability, thereby
           serving as surveillance & "house-cleaning" enzymes.
           Substrate specificity is used to define families within
           the superfamily. Differences in substrate specificity
           are determined by the N-terminal extension or by
           residues in variable loop regions. Mechanistically,
           substrate hydrolysis occurs by a nucleophilic
           substitution reaction, with variation in the numbers and
           roles of divalent cations required.
          Length = 144

 Score = 31.1 bits (71), Expect = 0.089
 Identities = 13/31 (41%), Positives = 18/31 (58%)

Query: 98  AGKVEEGETLEEAVKREVLEETGLEMAPTTL 128
           AG +  GET  E   RE+ EE GL+++   L
Sbjct: 40  AGHILAGETPLEDGIRELEEELGLDVSADDL 70


>gnl|CDD|235156 PRK03759, PRK03759, isopentenyl-diphosphate delta-isomerase;
           Provisional.
          Length = 184

 Score = 28.8 bits (65), Expect = 0.69
 Identities = 14/28 (50%), Positives = 17/28 (60%), Gaps = 2/28 (7%)

Query: 104 GETLEEAVKREVLEETGLEMAPTTLLAV 131
           GE+LE+AV R   EE G+E   T L  V
Sbjct: 75  GESLEDAVIRRCREELGVE--ITDLELV 100


>gnl|CDD|226927 COG4555, NatA, ABC-type Na+ transport system, ATPase component
           [Energy production and conversion / Inorganic ion
           transport and metabolism].
          Length = 245

 Score = 27.8 bits (62), Expect = 1.6
 Identities = 15/53 (28%), Positives = 23/53 (43%), Gaps = 2/53 (3%)

Query: 83  MQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEMAPTTLLAVETAR 135
           MQE +++C+    L  G+V    ++E    R VL    LE      L +E   
Sbjct: 193 MQEVEALCDRVIVLHKGEVVLEGSIEALDARTVLR--NLEEIFAFALKLEEGT 243


>gnl|CDD|239648 cd03676, Nudix_hydrolase_3, Members of the Nudix hydrolase
           superfamily catalyze the hydrolysis of NUcleoside
           DIphosphates linked to other moieties, X. Enzymes belong
           to this superfamily requires a divalent cation, such as
           Mg2+ or Mn2+, for their activity and contain a highly
           conserved 23-residue nudix motif (GX5EX7REUXEEXGU, where
           U = I, L or V), which functions as a metal binding and
           catalytic site. Substrates of nudix hydrolases include
           intact and oxidatively damaged nucleoside triphosphates,
           dinucleoside polyphosphates, nucleotide-sugars and
           dinucleotide enzymes. These substrates are metabolites
           or cell signaling molecules that require regulation
           during different stages of the cell cycle or during
           periods of stress. In general, the role of the nudix
           hydrolase is to sanitize the nucleotide pools and to
           maintain cell viability, thereby serving as surveillance
           & "house-cleaning" enzymes. Substrate specificity is
           used to define families within the superfamily.
           Differences in substrate specificity are determined by
           the N-terminal extension or by residues in variable loop
           regions. Mechanistically, substrate hydrolysis occurs by
           a nucleophilic substitution reaction, with variation in
           the numbers and roles of divalent cations required.
          Length = 180

 Score = 27.2 bits (61), Expect = 2.0
 Identities = 11/25 (44%), Positives = 14/25 (56%)

Query: 98  AGKVEEGETLEEAVKREVLEETGLE 122
           AG +  GE  EE + +E  EE GL 
Sbjct: 71  AGGLGHGEGPEETLVKECDEEAGLP 95


>gnl|CDD|185291 PRK15393, PRK15393, NUDIX hydrolase YfcD; Provisional.
          Length = 180

 Score = 27.5 bits (61), Expect = 2.2
 Identities = 23/71 (32%), Positives = 33/71 (46%), Gaps = 10/71 (14%)

Query: 60  RLKKTVTYIVMAVIINSKNAVLMMQ--EAKSICNGAWYLPA---GKVEEGETLEEAVKRE 114
            L+   TYIV   + +    +L+ +  E K    G   L A   G V+ GE L E+ +RE
Sbjct: 34  CLRHRATYIV---VHDGMGKILVQRRTETKDFLPG--MLDATAGGVVQAGEQLLESARRE 88

Query: 115 VLEETGLEMAP 125
             EE G+   P
Sbjct: 89  AEEELGIAGVP 99


>gnl|CDD|233382 TIGR01372, soxA, sarcosine oxidase, alpha subunit family,
           heterotetrameric form.  This model describes the alpha
           subunit of a family of known and putative
           heterotetrameric sarcosine oxidases. Five operons of
           such oxidases are found in Mesorhizobium loti and three
           in Agrobacterium tumefaciens, a high enough copy number
           to suggest that not all members are share the same
           function. The model is designated as subfamily rather
           than equivalog for this reason.Sarcosine oxidase
           catalyzes the oxidative demethylation of sarcosine to
           glycine. The reaction converts tetrahydrofolate to
           5,10-methylene-tetrahydrofolate. The enzyme is known in
           monomeric and heterotetrameric (alpha,beta,gamma,delta)
           forms [Energy metabolism, Amino acids and amines].
          Length = 985

 Score = 27.4 bits (61), Expect = 3.1
 Identities = 11/31 (35%), Positives = 13/31 (41%)

Query: 86  AKSICNGAWYLPAGKVEEGETLEEAVKREVL 116
           A     G W  P      GE ++EAV RE  
Sbjct: 610 AVFEDVGQWKRPWYYPRRGEDMDEAVARECK 640


>gnl|CDD|239218 cd02885, IPP_Isomerase, Isopentenyl diphosphate (IPP) isomerase, a
           member of the Nudix hydrolase superfamily, is a key
           enzyme in the isoprenoid biosynthetic pathway.
           Isoprenoids comprise a large family of natural products
           including sterols, carotenoids, dolichols and prenylated
           proteins. These compounds are synthesized from two
           precursors: isopentenyl diphosphate (IPP) and
           dimethylallyl diphosphate (DMAPP). IPP isomerase
           catalyzes the interconversion of IPP and DMAPP by a
           stereoselective antarafacial transposition of hydrogen.
           The enzyme requires one Mn2+ or Mg2+ ion in its active
           site to fold into an active conformation and also
           contains the Nudix motif, a highly conserved 23-residue
           block (GX5EX7REUXEEXGU, where U = I, L or V), that
           functions as a metal binding and catalytic site. The
           metal binding site is present within the active site and
           plays structural and catalytical roles. IPP isomerase is
           well represented in several bacteria, archaebacteria and
           eukaryotes, including fungi, mammals and plants. Despite
           sequence variations (mainly at the N-terminus), the core
           structure is highly conserved.
          Length = 165

 Score = 26.4 bits (59), Expect = 4.0
 Identities = 7/23 (30%), Positives = 13/23 (56%)

Query: 104 GETLEEAVKREVLEETGLEMAPT 126
           GE +++A +R + EE G+     
Sbjct: 71  GEGVKDAAQRRLREELGITGDLL 93


>gnl|CDD|234134 TIGR03169, Nterm_to_SelD, pyridine nucleotide-disulfide
          oxidoreductase family protein.  Members of this protein
          family include N-terminal sequence regions of
          (probable) bifunctional proteins whose C-terminal
          sequences are SelD, or selenide,water dikinase, the
          selenium donor protein necessary for selenium
          incorporation into protein (as selenocysteine), tRNA
          (as 2-selenouridine), or both. However, some members of
          this family occur in species that do not show selenium
          incorporation, and the function of this protein family
          is unknown.
          Length = 364

 Score = 26.5 bits (59), Expect = 4.6
 Identities = 16/61 (26%), Positives = 24/61 (39%), Gaps = 6/61 (9%)

Query: 1  MYRYSKNIMANHE-AIITPVLENIFSGKV-----CHDGEDQCDYDLTEQADFAPARGVIP 54
          + R++   +      +I P     +SG +      H   D+   DL   A  A AR VI 
Sbjct: 15 LRRWAMKPLPGVRVTLINPSSTTPYSGMLPGMIAGHYSLDEIRIDLRRLARQAGARFVIA 74

Query: 55 E 55
          E
Sbjct: 75 E 75


>gnl|CDD|233137 TIGR00811, sit, silicon transporter.  Marine diatoms such as
           Cylindrotheca fusiformis encode at least six silicon
           transport protein homologues which exhibit similar size
           and topology. One characterized member of the family
           (Sit1) functions in the energy-dependent uptake of
           either Silicic acid [Si(OH)4] or Silicate [Si(OH)3O-] by
           a Na+ symport mechanism. The system is found in marine
           diatoms which make their "glass houses" out of silicon
           [Transport and binding proteins, Other].
          Length = 545

 Score = 26.5 bits (58), Expect = 5.5
 Identities = 12/36 (33%), Positives = 19/36 (52%), Gaps = 8/36 (22%)

Query: 61  LKKTVTYIVMAVIINSKNAVLMMQEAKSICNGAWYL 96
           L   + YIV+ ++        ++ EA  IC GAW+L
Sbjct: 388 LSNPIVYIVLRIV--------LLIEATGICAGAWFL 415


>gnl|CDD|206040 pfam13869, NUDIX_2, Nucleotide hydrolase.  Nudix hydrolases are
           found in all classes of organism and hydrolyse a wide
           range of organic pyrophosphates, including nucleoside
           di- and triphosphates, di-nucleoside and
           diphospho-inositol polyphosphates, nucleotide sugars and
           RNA caps, with varying degrees of substrate specificity.
          Length = 188

 Score = 26.0 bits (58), Expect = 5.8
 Identities = 15/48 (31%), Positives = 25/48 (52%), Gaps = 7/48 (14%)

Query: 69  VMAVIINSKNA---VLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKR 113
           V  V++  ++    VL++Q    I N  + LP G++  GE   E +KR
Sbjct: 46  VEGVLLVHRHGHPHVLLLQ----IGNTFFKLPGGRLRPGEDEIEGLKR 89


>gnl|CDD|169390 PRK08340, PRK08340, glucose-1-dehydrogenase; Provisional.
          Length = 259

 Score = 26.3 bits (58), Expect = 6.0
 Identities = 11/20 (55%), Positives = 13/20 (65%)

Query: 102 EEGETLEEAVKREVLEETGL 121
           E G + EE  +REVLE T L
Sbjct: 199 ERGVSFEETWEREVLERTPL 218


>gnl|CDD|226571 COG4086, COG4086, Predicted secreted protein [Function unknown].
          Length = 299

 Score = 25.9 bits (57), Expect = 7.4
 Identities = 18/74 (24%), Positives = 29/74 (39%), Gaps = 2/74 (2%)

Query: 61  LKKTVTYIVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETG 120
           +KK    I + V+I     V       S+ +     P   V  GE L E  K+++L+E G
Sbjct: 1   MKKVRIEITILVVIAILLLVAAAYPEVSLADATVGRPI--VTLGEDLSETQKQQLLKEMG 58

Query: 121 LEMAPTTLLAVETA 134
           ++        V   
Sbjct: 59  VDPDSADTKIVTAE 72


>gnl|CDD|224058 COG1135, AbcC, ABC-type metal ion transport system, ATPase
           component [Inorganic ion transport and metabolism].
          Length = 339

 Score = 26.1 bits (58), Expect = 7.4
 Identities = 20/70 (28%), Positives = 29/70 (41%), Gaps = 12/70 (17%)

Query: 72  VIINSKNAVLMMQEAKSICNGAWYLPAGK-VEEGETLE------EAVKREVLEETGLEMA 124
           V+I  +     M+  K IC+    L  G+ VEEG   E       A+ +E + ET     
Sbjct: 196 VLITHE-----MEVVKRICDRVAVLDQGRLVEEGTVSEVFANPKHAITQEFIGETLEIDL 250

Query: 125 PTTLLAVETA 134
           P  LL    +
Sbjct: 251 PEELLERLES 260


>gnl|CDD|220585 pfam10123, Mu-like_Pro, Mu-like prophage I protein.  Members of
           this family of proteins comprise various viral Mu-like
           prophage I proteins.
          Length = 326

 Score = 25.8 bits (57), Expect = 8.0
 Identities = 13/67 (19%), Positives = 24/67 (35%), Gaps = 1/67 (1%)

Query: 64  TVTYIVMAVIINSKNAVLMMQEAKSICNGAWYLPAGKVEEGETLEEAVKREVLEETGLEM 123
            V  ++ A + N    +  M    ++   +   P  + E  E LE+ +    L     + 
Sbjct: 112 RVLELLSAALTNRPA-LDGMDPLAALAALSQQSPQEETEMNELLEKLLAALGLAADATDE 170

Query: 124 APTTLLA 130
             T  LA
Sbjct: 171 DLTAALA 177


>gnl|CDD|239631 cd03576, NTR_PCOLCE, NTR domain, PCOLCE subfamily; Procollagen
           C-endopeptidase enhancers (PCOLCEs) are extracellular
           matrix proteins that enhance the activity of procollagen
           C-proteases, by binding to the procollagen I C-peptide.
           They contain a C-terminal NTR domain, which have been
           suggested to possess inhibitory functions towards
           specific serine proteases but not towards metzincins,
           which are inhibited by the related TIMPs.
          Length = 124

 Score = 25.4 bits (56), Expect = 8.7
 Identities = 7/44 (15%), Positives = 17/44 (38%)

Query: 39  DLTEQADFAPARGVIPESFVPRLKKTVTYIVMAVIINSKNAVLM 82
            +T+       +  +     P L++ + YI+M  +      V+ 
Sbjct: 57  AITQAGKTMSVKITVVCKQCPLLRRGLNYILMGQVDEEGRGVIP 100


>gnl|CDD|236524 PRK09454, ugpQ, cytoplasmic glycerophosphodiester
           phosphodiesterase; Provisional.
          Length = 249

 Score = 25.7 bits (57), Expect = 9.7
 Identities = 15/48 (31%), Positives = 20/48 (41%), Gaps = 6/48 (12%)

Query: 92  GAWYLPAGKVEEGETLEEAVKREVLEETGL----EMAPTTLLAVETAR 135
           G+W+  A   E   TL +   R      G+    E+ PTT    ET R
Sbjct: 83  GSWFSAAFAGEPLPTLSQVAAR--CRAHGMAANIEIKPTTGREAETGR 128


  Database: CDD.v3.10
    Posted date:  Mar 20, 2013  7:55 AM
  Number of letters in database: 10,937,602
  Number of sequences in database:  44,354
  
Lambda     K      H
   0.316    0.132    0.376 

Gapped
Lambda     K      H
   0.267   0.0778    0.140 


Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 6,859,554
Number of extensions: 603132
Number of successful extensions: 660
Number of sequences better than 10.0: 1
Number of HSP's gapped: 653
Number of HSP's successfully gapped: 98
Length of query: 135
Length of database: 10,937,602
Length adjustment: 87
Effective length of query: 48
Effective length of database: 7,078,804
Effective search space: 339782592
Effective search space used: 339782592
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.3 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.6 bits)
S2: 53 (24.1 bits)