RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy11080
(90 letters)
>gnl|CDD|239582 cd03505, Delta9-FADS-like, The Delta9 Fatty Acid Desaturase
(Delta9-FADS)-like CD includes the delta-9 and delta-11
acyl CoA desaturases found in various eukaryotes
including vertebrates, insects, higher plants, and
fungi. The delta-9 acyl-lipid desaturases are found in a
wide range of bacteria. These enzymes play essential
roles in fatty acid metabolism and the regulation of
cell membrane fluidity. Acyl-CoA desaturases are the
enzymes involved in the CoA-bound desaturation of fatty
acids. Mammalian stearoyl-CoA delta-9 desaturase is a
key enzyme in the biosynthesis of monounsaturated fatty
acids, and in yeast, the delta-9 acyl-CoA desaturase
(OLE1) reaction accounts for all de nova unsaturated
fatty acid production in Saccharomyces cerevisiae. These
non-heme, iron-containing, ER membrane-bound enzymes are
part of a three-component enzyme system involving
cytochrome b5, cytochrome b5 reductase, and the delta-9
fatty acid desaturase. This complex catalyzes the NADH-
and oxygen-dependent insertion of a cis double bond
between carbons 9 and 10 of the saturated fatty acyl
substrates, palmitoyl (16:0)-CoA or stearoyl (18:0)-CoA,
yielding the monoenoic products palmitoleic (16:l) or
oleic (18:l) acids, respectively. In cyanobacteria, the
biosynthesis of unsaturated fatty acids is initiated by
delta 9 acyl-lipid desaturase (DesC) which introduces
the first double bond at the delta-9 position of a
saturated fatty acid that has been esterified to a
glycerolipid. This domain family has extensive
hydrophobic regions that would be capable of spanning
the membrane bilayer at least twice. Comparison of
sequences also reveals the existence of three regions of
conserved histidine cluster motifs that contain the
residues: HXXXXH, HXXHH, and H/QXXHH. These histidine
residues are reported to be catalytically essential and
proposed to be the ligands for the iron atoms contained
within the rat stearoyl CoA delta-9 desaturase. Some
eukaryotic (Fungi, Euglenozoa, Mycetozoa, Rhodophyta)
desaturase domains have an adjacent C-terminal
cytochrome b5-like domain.
Length = 178
Score = 59.9 bits (146), Expect = 8e-13
Identities = 18/43 (41%), Positives = 23/43 (53%), Gaps = 1/43 (2%)
Query: 2 GWHNYHHVFPWDYKTSELGTYGTNFTTAFIDFFARIGWAYDLK 44
GWHN HH FP D + L Y + T I ++G A+DLK
Sbjct: 137 GWHNNHHAFPGDARNG-LKWYQIDPTKWVIRLLEKLGLAWDLK 178
>gnl|CDD|224316 COG1398, OLE1, Fatty-acid desaturase [Lipid metabolism].
Length = 289
Score = 44.3 bits (105), Expect = 9e-07
Identities = 14/47 (29%), Positives = 20/47 (42%), Gaps = 1/47 (2%)
Query: 2 GWHNYHHVFPWDYKTSELGTYGTNFTTAFIDFFARIGWAYDLKTVSS 48
GWHN HH FP + L + + T I + +G A +K
Sbjct: 237 GWHNNHHAFPNSARNG-LKWWEFDVTWWIIKLLSLLGLAKVVKLAPK 282
>gnl|CDD|214982 smart01026, Beach, Beige/BEACH domain. The BEACH domain was
described in the BEIGE protein (D1035670) and in the
highly homologous CHS protein. The BEACH domain is
usually followed by a series of WD repeats. The
function of the BEACH domain is unknown.
Length = 280
Score = 26.0 bits (58), Expect = 2.6
Identities = 7/19 (36%), Positives = 9/19 (47%), Gaps = 3/19 (15%)
Query: 4 HNYHHVFPW---DYKTSEL 19
+ VFPW DY + L
Sbjct: 29 LTQYPVFPWVLADYTSETL 47
>gnl|CDD|238511 cd01060, Membrane-FADS-like, The membrane fatty acid desaturase
(Membrane_FADS)-like CD includes membrane FADSs, alkane
hydroxylases, beta carotene ketolases (CrtW-like),
hydroxylases (CrtR-like), and other related proteins.
They are present in all groups of organisms with the
exception of archaea. Membrane FADSs are non-heme,
iron-containing, oxygen-dependent enzymes involved in
regioselective introduction of double bonds in fatty
acyl aliphatic chains. They play an important role in
the maintenance of the proper structure and functioning
of biological membranes. Alkane hydroxylases are
bacterial, integral-membrane di-iron enzymes that share
a requirement for iron and oxygen for activity similar
to that of membrane FADSs, and are involved in the
initial oxidation of inactivated alkanes. Beta-carotene
ketolase and beta-carotene hydroxylase are carotenoid
biosynthetic enzymes for astaxanthin and zeaxanthin,
respectively. This superfamily domain has extensive
hydrophobic regions that would be capable of spanning
the membrane bilayer at least twice. Comparison of these
sequences also reveals three regions of conserved
histidine cluster motifs that contain eight histidine
residues: HXXX(X)H, HXX(X)HH, and HXXHH (an additional
conserved histidine residue is seen between clusters 2
and 3). Spectroscopic and genetic evidence point to a
nitrogen-rich coordination environment located in the
cytoplasm with as many as eight histidines coordinating
the two iron ions and a carboxylate residue bridging the
two metals in the Pseudomonas oleovorans alkane
hydroxylase (AlkB). In addition, the eight histidine
residues are reported to be catalytically essential and
proposed to be the ligands for the iron atoms contained
within the rat stearoyl CoA delta-9 desaturase.
Length = 122
Score = 25.9 bits (57), Expect = 2.7
Identities = 7/11 (63%), Positives = 10/11 (90%)
Query: 1 MGWHNYHHVFP 11
+G+HN HH+FP
Sbjct: 112 LGYHNEHHLFP 122
>gnl|CDD|235649 PRK05935, PRK05935, biotin--protein ligase; Provisional.
Length = 190
Score = 25.9 bits (57), Expect = 3.1
Identities = 10/27 (37%), Positives = 14/27 (51%)
Query: 50 MVRTRAQRTGDGSHGDVWGWGDKDMSA 76
++ TR Q G G G W D+D+ A
Sbjct: 32 VISTREQTAGKGKFGKSWHSSDQDLLA 58
>gnl|CDD|177866 PLN02220, PLN02220, delta-9 acyl-lipid desaturase.
Length = 299
Score = 25.5 bits (56), Expect = 4.2
Identities = 17/53 (32%), Positives = 23/53 (43%), Gaps = 1/53 (1%)
Query: 3 WHNYHHVFPWDYKTSELGTYGTNFTTAFIDFFARIGWAYDLKTVSSDMVRTRA 55
WHN HH F + L + + T I FF +G A D+K + R A
Sbjct: 245 WHNNHHAFESSARQG-LEWWQIDITWYLIRFFEVLGLATDVKLPTEAQKRKMA 296
>gnl|CDD|100117 cd06071, Beach, BEACH (Beige and Chediak-Higashi) domains,
implicated in membrane trafficking, are present in a
family of proteins conserved throughout eukaryotes.
This group contains human lysosomal trafficking
regulator (LYST), LPS-responsive and beige-like anchor
(LRBA) and neurobeachin. Disruption of LYST leads to
Chediak-Higashi syndrome, characterized by severe
immunodeficiency, albinism, poor blood coagulation and
neurologic problems. Neurobeachin is a candidate gene
linked to autism. LBRA seems to be upregulated in
several cancer types. It has been shown that the BEACH
domain itself is important for the function of these
proteins.
Length = 275
Score = 25.3 bits (56), Expect = 4.6
Identities = 7/19 (36%), Positives = 11/19 (57%), Gaps = 3/19 (15%)
Query: 4 HNYHHVFPW---DYKTSEL 19
+ + +FPW DY + EL
Sbjct: 29 LSQYPIFPWVISDYTSEEL 47
>gnl|CDD|184930 PRK14966, PRK14966, unknown domain/N5-glutamine
S-adenosyl-L-methionine-dependent methyltransferase
fusion protein; Provisional.
Length = 423
Score = 25.4 bits (55), Expect = 5.0
Identities = 23/79 (29%), Positives = 30/79 (37%), Gaps = 10/79 (12%)
Query: 12 WDYKTSELGTYGTNFTTAFIDFFARIGWAYDLKTVSSDMVRTRAQRTG---DGSHGDVWG 68
WD T G D F R A D+ + + R A G + +HG
Sbjct: 256 WDLGTGS-GAVAVTVALERPDAFVR---ASDISPPALETARKNAADLGARVEFAHGS--- 308
Query: 69 WGDKDMSAEDKQDATVVHP 87
W D DM +E K D V +P
Sbjct: 309 WFDTDMPSEGKWDIIVSNP 327
>gnl|CDD|218830 pfam05964, FYRN, F/Y-rich N-terminus. This region is normally
found in the trithorax/ALL1 family proteins. It is
similar to SMART:SM00541.
Length = 54
Score = 23.3 bits (51), Expect = 8.8
Identities = 6/19 (31%), Positives = 13/19 (68%)
Query: 1 MGWHNYHHVFPWDYKTSEL 19
G+H+ +++P YK++ L
Sbjct: 17 PGFHSERYIYPIGYKSTRL 35
>gnl|CDD|218345 pfam04952, AstE_AspA, Succinylglutamate desuccinylase /
Aspartoacylase family. This family includes
Succinylglutamate desuccinylase EC:3.1.-.- that
catalyzes the fifth and last step in arginine catabolism
by the arginine succinyltransferase pathway. The family
also include aspartoacylase EC:3.5.1.15 which cleaves
acylaspartate into a fatty acid and aspartate. Mutations
in human ASPA lead to Canavan disease disease. This
family is probably structurally related to pfam00246
(Bateman A pers. obs.).
Length = 289
Score = 24.6 bits (54), Expect = 9.0
Identities = 3/28 (10%), Positives = 10/28 (35%)
Query: 32 DFFARIGWAYDLKTVSSDMVRTRAQRTG 59
+ + + ++ + + RA G
Sbjct: 239 EAGDLLPGGHVFDSLGGESIEYRAPEDG 266
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
0.318 0.134 0.454
Gapped
Lambda K H
0.267 0.0774 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 4,404,673
Number of extensions: 330761
Number of successful extensions: 294
Number of sequences better than 10.0: 1
Number of HSP's gapped: 292
Number of HSP's successfully gapped: 16
Length of query: 90
Length of database: 10,937,602
Length adjustment: 58
Effective length of query: 32
Effective length of database: 8,365,070
Effective search space: 267682240
Effective search space used: 267682240
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 (21.7 bits)
S2: 53 (24.1 bits)