RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy15652
(92 letters)
>gnl|CDD|200467 cd11328, AmyAc_maltase, Alpha amylase catalytic domain found in
maltase (also known as alpha glucosidase) and related
proteins. Maltase (EC 3.2.1.20) hydrolyzes the
terminal, non-reducing (1->4)-linked alpha-D-glucose
residues in maltose, releasing alpha-D-glucose. In most
cases, maltase is equivalent to alpha-glucosidase, but
the term "maltase" emphasizes the disaccharide nature of
the substrate from which glucose is cleaved, and the
term "alpha-glucosidase" emphasizes the bond, whether
the substrate is a disaccharide or polysaccharide. The
Alpha-amylase family comprises the largest family of
glycoside hydrolases (GH), with the majority of enzymes
acting on starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 470
Score = 81.5 bits (202), Expect = 8e-20
Identities = 24/42 (57%), Positives = 32/42 (76%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIAPYDEYYVWKEGKGV 52
G+K++LD+VPNH+SDEH+WF KS PY +YYVW +GK
Sbjct: 91 GLKVILDFVPNHSSDEHEWFQKSVKRDEPYKDYYVWHDGKNN 132
>gnl|CDD|200494 cd11359, AmyAc_SLC3A1, Alpha amylase catalytic domain found in
Solute Carrier family 3 member 1 proteins. SLC3A1, also
called Neutral and basic amino acid transport protein
rBAT or NBAT, plays a role in amino acid and cystine
absorption. Mutations in the gene encoding SLC3A1 causes
cystinuria, an autosomal recessive disorder
characterized by the failure of proximal tubules to
reabsorb filtered cystine and dibasic amino acids. The
Alpha-amylase family comprises the largest family of
glycoside hydrolases (GH), with the majority of enzymes
acting on starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 456
Score = 69.3 bits (170), Expect = 2e-15
Identities = 19/40 (47%), Positives = 30/40 (75%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIAPYDEYYVWKEGK 50
G+K+++D+VPNHTSD+H+WF S+ PY +YY+W +
Sbjct: 89 GMKLIMDFVPNHTSDKHEWFQLSRNSTNPYTDYYIWADCT 128
>gnl|CDD|200472 cd11333, AmyAc_SI_OligoGlu_DGase, Alpha amylase catalytic domain
found in Sucrose isomerases, oligo-1,6-glucosidase (also
called isomaltase; sucrase-isomaltase; alpha-limit
dextrinase), dextran glucosidase (also called glucan
1,6-alpha-glucosidase), and related proteins. The
sucrose isomerases (SIs) Isomaltulose synthase (EC
5.4.99.11) and Trehalose synthase (EC 5.4.99.16)
catalyze the isomerization of sucrose and maltose to
produce isomaltulose and trehalulose, respectively.
Oligo-1,6-glucosidase (EC 3.2.1.10) hydrolyzes the
alpha-1,6-glucosidic linkage of
isomaltooligosaccharides, pannose, and dextran. Unlike
alpha-1,4-glucosidases (EC 3.2.1.20), it fails to
hydrolyze the alpha-1,4-glucosidic bonds of
maltosaccharides. Dextran glucosidase (DGase, EC
3.2.1.70) hydrolyzes alpha-1,6-glucosidic linkages at
the non-reducing end of panose, isomaltooligosaccharides
and dextran to produce alpha-glucose.The common reaction
chemistry of the alpha-amylase family enzymes is based
on a two-step acid catalytic mechanism that requires two
critical carboxylates: one acting as a general acid/base
(Glu) and the other as a nucleophile (Asp). Both
hydrolysis and transglycosylation proceed via the
nucleophilic substitution reaction between the anomeric
carbon, C1 and a nucleophile. Both enzymes contain the
three catalytic residues (Asp, Glu and Asp) common to
the alpha-amylase family as well as two histidine
residues which are predicted to be critical to binding
the glucose residue adjacent to the scissile bond in the
substrates. The Alpha-amylase family comprises the
largest family of glycoside hydrolases (GH), with the
majority of enzymes acting on starch, glycogen, and
related oligo- and polysaccharides. These proteins
catalyze the transformation of alpha-1,4 and alpha-1,6
glucosidic linkages with retention of the anomeric
center. The protein is described as having 3 domains: A,
B, C. A is a (beta/alpha) 8-barrel; B is a loop between
the beta 3 strand and alpha 3 helix of A; C is the
C-terminal extension characterized by a Greek key. The
majority of the enzymes have an active site cleft found
between domains A and B where a triad of catalytic
residues performs catalysis. Other members of this
family have lost the catalytic activity as in the case
of the human 4F2hc, or only have 2 residues that serve
as the catalytic nucleophile and the acid/base, such as
Thermus A4 beta-galactosidase with 2 Glu residues (GH42)
and human alpha-galactosidase with 2 Asp residues
(GH31). The family members are quite extensive and
include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 428
Score = 65.9 bits (162), Expect = 2e-14
Identities = 23/42 (54%), Positives = 32/42 (76%), Gaps = 1/42 (2%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIA-PYDEYYVWKEGKG 51
GIKI++D V NHTSDEH WF +S++ PY +YY+W++GK
Sbjct: 86 GIKIIMDLVVNHTSDEHPWFQESRSSRDNPYRDYYIWRDGKD 127
>gnl|CDD|200470 cd11331, AmyAc_OligoGlu_like, Alpha amylase catalytic domain found
in oligo-1,6-glucosidase (also called isomaltase;
sucrase-isomaltase; alpha-limit dextrinase) and related
proteins. Oligo-1,6-glucosidase (EC 3.2.1.10)
hydrolyzes the alpha-1,6-glucosidic linkage of
isomalto-oligosaccharides, pannose, and dextran. Unlike
alpha-1,4-glucosidases (EC 3.2.1.20), it fails to
hydrolyze the alpha-1,4-glucosidic bonds of
maltosaccharides. The Alpha-amylase family comprises the
largest family of glycoside hydrolases (GH), with the
majority of enzymes acting on starch, glycogen, and
related oligo- and polysaccharides. These proteins
catalyze the transformation of alpha-1,4 and alpha-1,6
glucosidic linkages with retention of the anomeric
center. The protein is described as having 3 domains: A,
B, C. A is a (beta/alpha) 8-barrel; B is a loop between
the beta 3 strand and alpha 3 helix of A; C is the
C-terminal extension characterized by a Greek key. The
majority of the enzymes have an active site cleft found
between domains A and B where a triad of catalytic
residues (Asp, Glu and Asp) performs catalysis. Other
members of this family have lost the catalytic activity
as in the case of the human 4F2hc, or only have 2
residues that serve as the catalytic nucleophile and the
acid/base, such as Thermus A4 beta-galactosidase with 2
Glu residues (GH42) and human alpha-galactosidase with 2
Asp residues (GH31). The family members are quite
extensive and include: alpha amylase,
maltosyltransferase, cyclodextrin glycotransferase,
maltogenic amylase, neopullulanase, isoamylase,
1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 450
Score = 62.3 bits (152), Expect = 6e-13
Identities = 18/41 (43%), Positives = 31/41 (75%), Gaps = 1/41 (2%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIA-PYDEYYVWKEGK 50
G+K++LD+VPNHTSD+H WF +S++ P ++Y+W++
Sbjct: 89 GLKVILDFVPNHTSDQHPWFLESRSSRDNPKRDWYIWRDPA 129
>gnl|CDD|200455 cd11316, AmyAc_bac2_AmyA, Alpha amylase catalytic domain found in
bacterial Alpha-amylases (also called
1,4-alpha-D-glucan-4-glucanohydrolase). AmyA (EC
3.2.1.1) catalyzes the hydrolysis of alpha-(1,4)
glycosidic linkages of glycogen, starch, related
polysaccharides, and some oligosaccharides. This group
includes Chloroflexi, Dictyoglomi, and Fusobacteria. The
Alpha-amylase family comprises the largest family of
glycoside hydrolases (GH), with the majority of enzymes
acting on starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 403
Score = 61.1 bits (149), Expect = 1e-12
Identities = 18/39 (46%), Positives = 27/39 (69%), Gaps = 1/39 (2%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIA-PYDEYYVWKE 48
GIK+++D V NHTS EH WF ++ + PY +YY+W +
Sbjct: 83 GIKVIIDLVINHTSSEHPWFQEAASSPDSPYRDYYIWAD 121
>gnl|CDD|233851 TIGR02403, trehalose_treC, alpha,alpha-phosphotrehalase. Trehalose
is a glucose disaccharide that serves in many biological
systems as a compatible solute for protection against
hyperosmotic and thermal stress. This family describes
trehalose-6-phosphate hydrolase, product of the treC (or
treA) gene, which is often found together with a
trehalose uptake transporter and a trehalose operon
repressor.
Length = 543
Score = 60.0 bits (146), Expect = 3e-12
Identities = 23/41 (56%), Positives = 32/41 (78%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIAPYDEYYVWKEGKG 51
IKI+LD V NHTS EH+WF K+ AG +PY ++Y+W++ KG
Sbjct: 88 NIKIMLDMVFNHTSTEHEWFKKALAGDSPYRDFYIWRDPKG 128
>gnl|CDD|200486 cd11348, AmyAc_2, Alpha amylase catalytic domain found in an
uncharacterized protein family. The Alpha-amylase
family comprises the largest family of glycoside
hydrolases (GH), with the majority of enzymes acting on
starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The catalytic triad (DED) is not
present here. The family members are quite extensive and
include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 429
Score = 59.2 bits (144), Expect = 7e-12
Identities = 24/48 (50%), Positives = 29/48 (60%), Gaps = 1/48 (2%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKS-KAGIAPYDEYYVWKEGKGVWIPGL 57
GI +LLD VP HTSDEH WF +S KA Y + Y+W + PGL
Sbjct: 83 GIHVLLDLVPGHTSDEHPWFKESKKAENNEYSDRYIWTDSIWSGGPGL 130
>gnl|CDD|215737 pfam00128, Alpha-amylase, Alpha amylase, catalytic domain. Alpha
amylase is classified as family 13 of the glycosyl
hydrolases. The structure is an 8 stranded alpha/beta
barrel containing the active site, interrupted by a ~70
a.a. calcium-binding domain protruding between beta
strand 3 and alpha helix 3, and a carboxyl-terminal
Greek key beta-barrel domain.
Length = 314
Score = 55.8 bits (135), Expect = 1e-10
Identities = 22/41 (53%), Positives = 29/41 (70%), Gaps = 1/41 (2%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKS-KAGIAPYDEYYVWKEGK 50
GIK++LD VPNHTSDEH WF +S + PY +YY+W+
Sbjct: 65 GIKVILDLVPNHTSDEHAWFQESRSSKDNPYRDYYIWRIYS 105
>gnl|CDD|200473 cd11334, AmyAc_TreS, Alpha amylase catalytic domain found in
Trehalose synthetase. Trehalose synthetase (TreS)
catalyzes the reversible interconversion of trehalose
and maltose. The enzyme catalyzes the reaction in both
directions, but the preferred substrate is maltose.
Glucose is formed as a by-product of this reaction. It
is believed that the catalytic mechanism may involve the
cutting of the incoming disaccharide and transfer of a
glucose to an enzyme-bound glucose. This enzyme also
catalyzes production of a glucosamine disaccharide from
maltose and glucosamine. The Alpha-amylase family
comprises the largest family of glycoside hydrolases
(GH), with the majority of enzymes acting on starch,
glycogen, and related oligo- and polysaccharides. These
proteins catalyze the transformation of alpha-1,4 and
alpha-1,6 glucosidic linkages with retention of the
anomeric center. The protein is described as having 3
domains: A, B, C. A is a (beta/alpha) 8-barrel; B is a
loop between the beta 3 strand and alpha 3 helix of A; C
is the C-terminal extension characterized by a Greek
key. The majority of the enzymes have an active site
cleft found between domains A and B where a triad of
catalytic residues (Asp, Glu and Asp) performs
catalysis. Other members of this family have lost the
catalytic activity as in the case of the human 4F2hc, or
only have 2 residues that serve as the catalytic
nucleophile and the acid/base, such as Thermus A4
beta-galactosidase with 2 Glu residues (GH42) and human
alpha-galactosidase with 2 Asp residues (GH31). The
family members are quite extensive and include: alpha
amylase, maltosyltransferase, cyclodextrin
glycotransferase, maltogenic amylase, neopullulanase,
isoamylase, 1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 447
Score = 54.9 bits (133), Expect = 2e-10
Identities = 18/39 (46%), Positives = 28/39 (71%), Gaps = 1/39 (2%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGI-APYDEYYVWKE 48
GI++++D V NHTSD+H WF ++ +PY +YYVW +
Sbjct: 88 GIRVIIDLVVNHTSDQHPWFQAARRDPDSPYRDYYVWSD 126
>gnl|CDD|182849 PRK10933, PRK10933, trehalose-6-phosphate hydrolase; Provisional.
Length = 551
Score = 54.4 bits (131), Expect = 4e-10
Identities = 19/45 (42%), Positives = 31/45 (68%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIAPYDEYYVWKEGKGVWIP 55
GI+I+LD V NHTS +H WF ++ +PY ++Y+W++G+ P
Sbjct: 94 GIRIILDMVFNHTSTQHAWFREALNKESPYRQFYIWRDGEPETPP 138
>gnl|CDD|200468 cd11329, AmyAc_maltase-like, Alpha amylase catalytic domain family
found in maltase. Maltase (EC 3.2.1.20) hydrolyzes the
terminal, non-reducing (1->4)-linked alpha-D-glucose
residues in maltose, releasing alpha-D-glucose. The
catalytic triad (DED) which is highly conserved in the
other maltase group is not present in this subfamily.
The Alpha-amylase family comprises the largest family of
glycoside hydrolases (GH), with the majority of enzymes
acting on starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 477
Score = 54.3 bits (131), Expect = 4e-10
Identities = 18/41 (43%), Positives = 24/41 (58%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIAPYDEYYVWKEGKG 51
IK++LD PNH+S +H F S PY +VW +GKG
Sbjct: 128 DIKVILDLTPNHSSKQHPLFKDSVLKEPPYRSAFVWADGKG 168
>gnl|CDD|200469 cd11330, AmyAc_OligoGlu, Alpha amylase catalytic domain found in
oligo-1,6-glucosidase (also called isomaltase;
sucrase-isomaltase; alpha-limit dextrinase) and related
proteins. Oligo-1,6-glucosidase (EC 3.2.1.10)
hydrolyzes the alpha-1,6-glucosidic linkage of
isomalto-oligosaccharides, pannose, and dextran. Unlike
alpha-1,4-glucosidases (EC 3.2.1.20), it fails to
hydrolyze the alpha-1,4-glucosidic bonds of
maltosaccharides. The Alpha-amylase family comprises the
largest family of glycoside hydrolases (GH), with the
majority of enzymes acting on starch, glycogen, and
related oligo- and polysaccharides. These proteins
catalyze the transformation of alpha-1,4 and alpha-1,6
glucosidic linkages with retention of the anomeric
center. The protein is described as having 3 domains: A,
B, C. A is a (beta/alpha) 8-barrel; B is a loop between
the beta 3 strand and alpha 3 helix of A; C is the
C-terminal extension characterized by a Greek key. The
majority of the enzymes have an active site cleft found
between domains A and B where a triad of catalytic
residues (Asp, Glu and Asp) performs catalysis. Other
members of this family have lost the catalytic activity
as in the case of the human 4F2hc, or only have 2
residues that serve as the catalytic nucleophile and the
acid/base, such as Thermus A4 beta-galactosidase with 2
Glu residues (GH42) and human alpha-galactosidase with 2
Asp residues (GH31). The family members are quite
extensive and include: alpha amylase,
maltosyltransferase, cyclodextrin glycotransferase,
maltogenic amylase, neopullulanase, isoamylase,
1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 472
Score = 53.8 bits (130), Expect = 5e-10
Identities = 17/41 (41%), Positives = 28/41 (68%), Gaps = 1/41 (2%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGI-APYDEYYVWKEGK 50
G+K+++D V +HTSD+H WF +S+ P ++YVW + K
Sbjct: 89 GLKVMIDQVLSHTSDQHPWFEESRQSRDNPKADWYVWADPK 129
>gnl|CDD|200463 cd11324, AmyAc_Amylosucrase, Alpha amylase catalytic domain found
in Amylosucrase. Amylosucrase is a glucosyltransferase
that catalyzes the transfer of a D-glucopyranosyl moiety
from sucrose onto an acceptor molecule. When the
acceptor is another saccharide, only alpha-1,4 linkages
are produced. Unlike most amylopolysaccharide synthases,
it does not require any alpha-D-glucosyl nucleoside
diphosphate substrate. In the presence of glycogen it
catalyzes the transfer of a D-glucose moiety onto a
glycogen branch, but in its absence, it hydrolyzes
sucrose and synthesizes polymers, smaller
maltosaccharides, and sucrose isoforms. The
Alpha-amylase family comprises the largest family of
glycoside hydrolases (GH), with the majority of enzymes
acting on starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 536
Score = 52.2 bits (126), Expect = 2e-09
Identities = 18/34 (52%), Positives = 26/34 (76%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIAPYDEYY 44
GI ++LD+V NHT+DEH+W K++AG Y +YY
Sbjct: 149 GISLVLDFVLNHTADEHEWAQKARAGDPEYQDYY 182
>gnl|CDD|233874 TIGR02456, treS_nterm, trehalose synthase. Trehalose synthase
interconverts maltose and alpha, alpha-trehalose by
transglucosylation. This is one of at least three
mechanisms for biosynthesis of trehalose, an important
and widespread compatible solute. However, it is not
driven by phosphate activation of sugars and its
physiological role may tend toward trehalose
degradation. This view is accentuated by numerous
examples of fusion to a probable maltokinase domain. The
sequence region described by this model is found both as
the whole of a trehalose synthase and as the N-terminal
region of a larger fusion protein that includes
trehalose synthase activity. Several of these fused
trehalose synthases have a domain homologous to proteins
with maltokinase activity from Actinoplanes
missouriensis and Streptomyces coelicolor
(PMID:15378530) [Energy metabolism, Biosynthesis and
degradation of polysaccharides].
Length = 539
Score = 51.3 bits (123), Expect = 3e-09
Identities = 16/39 (41%), Positives = 29/39 (74%), Gaps = 1/39 (2%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGI-APYDEYYVWKE 48
G+++++D V NHTSD+H WF ++++ PY ++YVW +
Sbjct: 89 GMRVIIDLVLNHTSDQHPWFQEARSNPDGPYRDFYVWSD 127
>gnl|CDD|200471 cd11332, AmyAc_OligoGlu_TS, Alpha amylase catalytic domain found in
oligo-1,6-glucosidase (also called isomaltase;
sucrase-isomaltase; alpha-limit dextrinase), trehalose
synthase (also called maltose
alpha-D-glucosyltransferase), and related proteins.
Oligo-1,6-glucosidase (EC 3.2.1.10) hydrolyzes the
alpha-1,6-glucosidic linkage of
isomaltooligosaccharides, pannose, and dextran. Unlike
alpha-1,4-glucosidases (EC 3.2.1.20), it fails to
hydrolyze the alpha-1,4-glucosidic bonds of
maltosaccharides. Trehalose synthase (EC 5.4.99.16)
catalyzes the isomerization of maltose to produce
trehalulose. The Alpha-amylase family comprises the
largest family of glycoside hydrolases (GH), with the
majority of enzymes acting on starch, glycogen, and
related oligo- and polysaccharides. These proteins
catalyze the transformation of alpha-1,4 and alpha-1,6
glucosidic linkages with retention of the anomeric
center. The protein is described as having 3 domains: A,
B, C. A is a (beta/alpha) 8-barrel; B is a loop between
the beta 3 strand and alpha 3 helix of A; C is the
C-terminal extension characterized by a Greek key. The
majority of the enzymes have an active site cleft found
between domains A and B where a triad of catalytic
residues (Asp, Glu and Asp) performs catalysis. Other
members of this family have lost the catalytic activity
as in the case of the human 4F2hc, or only have 2
residues that serve as the catalytic nucleophile and the
acid/base, such as Thermus A4 beta-galactosidase with 2
Glu residues (GH42) and human alpha-galactosidase with 2
Asp residues (GH31). The family members are quite
extensive and include: alpha amylase,
maltosyltransferase, cyclodextrin glycotransferase,
maltogenic amylase, neopullulanase, isoamylase,
1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 481
Score = 51.5 bits (124), Expect = 4e-09
Identities = 17/43 (39%), Positives = 30/43 (69%), Gaps = 2/43 (4%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAG--IAPYDEYYVWKEGKG 51
G+++++D VPNHTSD+H WF + A +P Y++++G+G
Sbjct: 89 GLRVIVDIVPNHTSDQHPWFQAALAAGPGSPERARYIFRDGRG 131
>gnl|CDD|223443 COG0366, AmyA, Glycosidases [Carbohydrate transport and
metabolism].
Length = 505
Score = 45.4 bits (107), Expect = 6e-07
Identities = 18/42 (42%), Positives = 27/42 (64%), Gaps = 2/42 (4%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIAPYDE--YYVWKEGK 50
GIK++LD V NHTSDEH WF ++++ YY+W++
Sbjct: 90 GIKVILDLVFNHTSDEHPWFKEARSSKPNPKRSDYYIWRDPD 131
>gnl|CDD|236759 PRK10785, PRK10785, maltodextrin glucosidase; Provisional.
Length = 598
Score = 42.7 bits (101), Expect = 4e-06
Identities = 14/42 (33%), Positives = 23/42 (54%), Gaps = 8/42 (19%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGI--------APYDEYY 44
G++++LD V NHT D H WF + G +P+ ++Y
Sbjct: 239 GMRLVLDGVFNHTGDSHPWFDRHNRGTGGACHHPDSPWRDWY 280
>gnl|CDD|200452 cd11313, AmyAc_arch_bac_AmyA, Alpha amylase catalytic domain found
in archaeal and bacterial Alpha-amylases (also called
1,4-alpha-D-glucan-4-glucanohydrolase). AmyA (EC
3.2.1.1) catalyzes the hydrolysis of alpha-(1,4)
glycosidic linkages of glycogen, starch, related
polysaccharides, and some oligosaccharides. This group
includes firmicutes, bacteroidetes, and proteobacteria.
The Alpha-amylase family comprises the largest family of
glycoside hydrolases (GH), with the majority of enzymes
acting on starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 336
Score = 40.6 bits (96), Expect = 2e-05
Identities = 11/38 (28%), Positives = 21/38 (55%), Gaps = 7/38 (18%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIAPYDEYYVWKE 48
G+K++LD+V NHT+ +H + + E+Y+
Sbjct: 89 GMKVILDWVANHTAWDHPLVEE-------HPEWYLRDS 119
>gnl|CDD|200477 cd11338, AmyAc_CMD, Alpha amylase catalytic domain found in
cyclomaltodextrinases and related proteins.
Cyclomaltodextrinase (CDase; EC3.2.1.54), neopullulanase
(NPase; EC 3.2.1.135), and maltogenic amylase (MA; EC
3.2.1.133) catalyze the hydrolysis of alpha-(1,4)
glycosidic linkages on a number of substrates including
cyclomaltodextrins (CDs), pullulan, and starch. These
enzymes hydrolyze CDs and starch to maltose and pullulan
to panose by cleavage of alpha-1,4 glycosidic bonds
whereas alpha-amylases essentially lack activity on CDs
and pullulan. They also catalyze transglycosylation of
oligosaccharides to the C3-, C4- or C6-hydroxyl groups
of various acceptor sugar molecules. Since these
proteins are nearly indistinguishable from each other,
they are referred to as cyclomaltodextrinases (CMDs).
The Alpha-amylase family comprises the largest family of
glycoside hydrolases (GH), with the majority of enzymes
acting on starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 389
Score = 38.2 bits (90), Expect = 1e-04
Identities = 10/22 (45%), Positives = 15/22 (68%)
Query: 11 GIKILLDYVPNHTSDEHDWFAK 32
GI+++LD V NHT D+ +F
Sbjct: 116 GIRVILDGVFNHTGDDSPYFQD 137
>gnl|CDD|200493 cd11356, AmyAc_Sucrose_phosphorylase-like_1, Alpha amylase
catalytic domain found in sucrose phosphorylase-like
proteins (also called sucrose glucosyltransferase,
disaccharide glucosyltransferase, and sucrose-phosphate
alpha-D glucosyltransferase). Sucrose phosphorylase is
a bacterial enzyme that catalyzes the phosphorolysis of
sucrose to yield glucose-1-phosphate and fructose. These
enzymes do not have the conserved calcium ion present in
other alpha amylase family enzymes. The Alpha-amylase
family comprises the largest family of glycoside
hydrolases (GH), with the majority of enzymes acting on
starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 458
Score = 37.9 bits (89), Expect = 2e-04
Identities = 12/33 (36%), Positives = 19/33 (57%)
Query: 13 KILLDYVPNHTSDEHDWFAKSKAGIAPYDEYYV 45
+++ D V NH S WF + AG PY +Y++
Sbjct: 81 RLMFDLVINHVSSSSPWFQQFLAGEPPYKDYFI 113
>gnl|CDD|200481 cd11343, AmyAc_Sucrose_phosphorylase-like, Alpha amylase catalytic
domain found in sucrose phosphorylase (also called
sucrose glucosyltransferase, disaccharide
glucosyltransferase, and sucrose-phosphate alpha-D
glucosyltransferase). Sucrose phosphorylase is a
bacterial enzyme that catalyzes the phosphorolysis of
sucrose to yield glucose-1-phosphate and fructose. These
enzymes do not have the conserved calcium ion present in
other alpha amylase family enzymes. The Alpha-amylase
family comprises the largest family of glycoside
hydrolases (GH), with the majority of enzymes acting on
starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 445
Score = 36.3 bits (85), Expect = 8e-04
Identities = 11/33 (33%), Positives = 17/33 (51%)
Query: 13 KILLDYVPNHTSDEHDWFAKSKAGIAPYDEYYV 45
++ D V NH S + WF AG P +Y++
Sbjct: 79 DLMFDLVINHISSQSPWFQDFLAGGDPSKDYFI 111
>gnl|CDD|200479 cd11340, AmyAc_bac_CMD_like_3, Alpha amylase catalytic domain found
in bacterial cyclomaltodextrinases and related proteins.
Cyclomaltodextrinase (CDase; EC3.2.1.54),
neopullulanase (NPase; EC 3.2.1.135), and maltogenic
amylase (MA; EC 3.2.1.133) catalyze the hydrolysis of
alpha-(1,4) glycosidic linkages on a number of
substrates including cyclomaltodextrins (CDs), pullulan,
and starch. These enzymes hydrolyze CDs and starch to
maltose and pullulan to panose by cleavage of alpha-1,4
glycosidic bonds whereas alpha-amylases essentially lack
activity on CDs and pullulan. They also catalyze
transglycosylation of oligosaccharides to the C3-, C4-
or C6-hydroxyl groups of various acceptor sugar
molecules. Since these proteins are nearly
indistinguishable from each other, they are referred to
as cyclomaltodextrinases (CMDs). This group of CMDs is
bacterial. The Alpha-amylase family comprises the
largest family of glycoside hydrolases (GH), with the
majority of enzymes acting on starch, glycogen, and
related oligo- and polysaccharides. These proteins
catalyze the transformation of alpha-1,4 and alpha-1,6
glucosidic linkages with retention of the anomeric
center. The protein is described as having 3 domains: A,
B, C. A is a (beta/alpha) 8-barrel; B is a loop between
the beta 3 strand and alpha 3 helix of A; C is the
C-terminal extension characterized by a Greek key. The
majority of the enzymes have an active site cleft found
between domains A and B where a triad of catalytic
residues (Asp, Glu and Asp) performs catalysis. Other
members of this family have lost the catalytic activity
as in the case of the human 4F2hc, or only have 2
residues that serve as the catalytic nucleophile and the
acid/base, such as Thermus A4 beta-galactosidase with 2
Glu residues (GH42) and human alpha-galactosidase with 2
Asp residues (GH31). The family members are quite
extensive and include: alpha amylase,
maltosyltransferase, cyclodextrin glycotransferase,
maltogenic amylase, neopullulanase, isoamylase,
1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 407
Score = 34.9 bits (81), Expect = 0.003
Identities = 10/20 (50%), Positives = 14/20 (70%)
Query: 11 GIKILLDYVPNHTSDEHDWF 30
G+K+++D VPNH EH W
Sbjct: 109 GMKLIMDMVPNHCGSEHWWM 128
>gnl|CDD|200459 cd11320, AmyAc_AmyMalt_CGTase_like, Alpha amylase catalytic domain
found in maltogenic amylases, cyclodextrin
glycosyltransferase, and related proteins. Enzymes such
as amylases, cyclomaltodextrinase (CDase), and
cyclodextrin glycosyltransferase (CGTase) degrade starch
to smaller oligosaccharides by hydrolyzing the
alpha-D-(1,4) linkages between glucose residues. In the
case of CGTases, an additional cyclization reaction is
catalyzed yielding mixtures of cyclic oligosaccharides
which are referred to as alpha-, beta-, or
gamma-cyclodextrins (CDs), consisting of six, seven, or
eight glucose residues, respectively. CGTases are
characterized depending on the major product of the
cyclization reaction. Besides having similar catalytic
site residues, amylases and CGTases contain carbohydrate
binding domains that are distant from the active site
and are implicated in attaching the enzyme to raw starch
granules and in guiding the amylose chain into the
active site. The maltogenic alpha-amylase from Bacillus
is a five-domain structure, unlike most alpha-amylases,
but similar to that of cyclodextrin glycosyltransferase.
In addition to the A, B, and C domains, they have a
domain D and a starch-binding domain E. Maltogenic
amylase is an endo-acting amylase that has activity on
cyclodextrins, terminally modified linear maltodextrins,
and amylose. The Alpha-amylase family comprises the
largest family of glycoside hydrolases (GH), with the
majority of enzymes acting on starch, glycogen, and
related oligo- and polysaccharides. These proteins
catalyze the transformation of alpha-1,4 and alpha-1,6
glucosidic linkages with retention of the anomeric
center. The protein is described as having 3 domains: A,
B, C. A is a (beta/alpha) 8-barrel; B is a loop between
the beta 3 strand and alpha 3 helix of A; C is the
C-terminal extension characterized by a Greek key. The
majority of the enzymes have an active site cleft found
between domains A and B where a triad of catalytic
residues (Asp, Glu and Asp) performs catalysis. Other
members of this family have lost the catalytic activity
as in the case of the human 4F2hc, or only have 2
residues that serve as the catalytic nucleophile and the
acid/base, such as Thermus A4 beta-galactosidase with 2
Glu residues (GH42) and human alpha-galactosidase with 2
Asp residues (GH31). The family members are quite
extensive and include: alpha amylase,
maltosyltransferase, cyclodextrin glycotransferase,
maltogenic amylase, neopullulanase, isoamylase,
1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 389
Score = 34.2 bits (79), Expect = 0.004
Identities = 9/15 (60%), Positives = 14/15 (93%)
Query: 11 GIKILLDYVPNHTSD 25
GIK+++D+VPNH+S
Sbjct: 117 GIKVIIDFVPNHSSP 131
>gnl|CDD|200485 cd11347, AmyAc_1, Alpha amylase catalytic domain found in an
uncharacterized protein family. The Alpha-amylase
family comprises the largest family of glycoside
hydrolases (GH), with the majority of enzymes acting on
starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 391
Score = 34.1 bits (79), Expect = 0.004
Identities = 10/19 (52%), Positives = 16/19 (84%)
Query: 11 GIKILLDYVPNHTSDEHDW 29
G+K++LD+VPNH + +H W
Sbjct: 115 GLKLMLDFVPNHVALDHPW 133
>gnl|CDD|214758 smart00642, Aamy, Alpha-amylase domain.
Length = 166
Score = 32.7 bits (75), Expect = 0.010
Identities = 11/15 (73%), Positives = 13/15 (86%)
Query: 11 GIKILLDYVPNHTSD 25
GIK++LD V NHTSD
Sbjct: 83 GIKVILDVVINHTSD 97
>gnl|CDD|200478 cd11339, AmyAc_bac_CMD_like_2, Alpha amylase catalytic domain found
in bacterial cyclomaltodextrinases and related proteins.
Cyclomaltodextrinase (CDase; EC3.2.1.54),
neopullulanase (NPase; EC 3.2.1.135), and maltogenic
amylase (MA; EC 3.2.1.133) catalyze the hydrolysis of
alpha-(1,4) glycosidic linkages on a number of
substrates including cyclomaltodextrins (CDs), pullulan,
and starch. These enzymes hydrolyze CDs and starch to
maltose and pullulan to panose by cleavage of alpha-1,4
glycosidic bonds whereas alpha-amylases essentially lack
activity on CDs and pullulan. They also catalyze
transglycosylation of oligosaccharides to the C3-, C4-
or C6-hydroxyl groups of various acceptor sugar
molecules. Since these proteins are nearly
indistinguishable from each other, they are referred to
as cyclomaltodextrinases (CMDs). This group of CMDs is
bacterial. The Alpha-amylase family comprises the
largest family of glycoside hydrolases (GH), with the
majority of enzymes acting on starch, glycogen, and
related oligo- and polysaccharides. These proteins
catalyze the transformation of alpha-1,4 and alpha-1,6
glucosidic linkages with retention of the anomeric
center. The protein is described as having 3 domains: A,
B, C. A is a (beta/alpha) 8-barrel; B is a loop between
the beta 3 strand and alpha 3 helix of A; C is the
C-terminal extension characterized by a Greek key. The
majority of the enzymes have an active site cleft found
between domains A and B where a triad of catalytic
residues (Asp, Glu and Asp) performs catalysis. Other
members of this family have lost the catalytic activity
as in the case of the human 4F2hc, or only have 2
residues that serve as the catalytic nucleophile and the
acid/base, such as Thermus A4 beta-galactosidase with 2
Glu residues (GH42) and human alpha-galactosidase with 2
Asp residues (GH31). The family members are quite
extensive and include: alpha amylase,
maltosyltransferase, cyclodextrin glycotransferase,
maltogenic amylase, neopullulanase, isoamylase,
1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 344
Score = 31.1 bits (71), Expect = 0.043
Identities = 10/15 (66%), Positives = 12/15 (80%)
Query: 11 GIKILLDYVPNHTSD 25
GIK++LD V NHT D
Sbjct: 112 GIKVILDIVVNHTGD 126
>gnl|CDD|200476 cd11337, AmyAc_CMD_like, Alpha amylase catalytic domain found in
cyclomaltodextrinases and related proteins.
Cyclomaltodextrinase (CDase; EC3.2.1.54), neopullulanase
(NPase; EC 3.2.1.135), and maltogenic amylase (MA; EC
3.2.1.133) catalyze the hydrolysis of alpha-(1,4)
glycosidic linkages on a number of substrates including
cyclomaltodextrins (CDs), pullulan, and starch. These
enzymes hydrolyze CDs and starch to maltose and pullulan
to panose by cleavage of alpha-1,4 glycosidic bonds
whereas alpha-amylases essentially lack activity on CDs
and pullulan. They also catalyze transglycosylation of
oligosaccharides to the C3-, C4- or C6-hydroxyl groups
of various acceptor sugar molecules. Since these
proteins are nearly indistinguishable from each other,
they are referred to as cyclomaltodextrinases (CMDs).
This group of CMDs is mainly bacterial. The
Alpha-amylase family comprises the largest family of
glycoside hydrolases (GH), with the majority of enzymes
acting on starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 328
Score = 30.2 bits (69), Expect = 0.11
Identities = 8/19 (42%), Positives = 12/19 (63%)
Query: 11 GIKILLDYVPNHTSDEHDW 29
GI+++LD V NH + W
Sbjct: 87 GIRVVLDGVFNHVGRDFFW 105
>gnl|CDD|200491 cd11354, AmyAc_bac_CMD_like, Alpha amylase catalytic domain found
in bacterial cyclomaltodextrinases and related proteins.
Cyclomaltodextrinase (CDase; EC3.2.1.54),
neopullulanase (NPase; EC 3.2.1.135), and maltogenic
amylase (MA; EC 3.2.1.133) catalyze the hydrolysis of
alpha-(1,4) glycosidic linkages on a number of
substrates including cyclomaltodextrins (CDs), pullulan,
and starch. These enzymes hydrolyze CDs and starch to
maltose and pullulan to panose by cleavage of alpha-1,4
glycosidic bonds whereas alpha-amylases essentially lack
activity on CDs and pullulan. They also catalyze
transglycosylation of oligosaccharides to the C3-, C4-
or C6-hydroxyl groups of various acceptor sugar
molecules. Since these proteins are nearly
indistinguishable from each other, they are referred to
as cyclomaltodextrinases (CMDs). This group of CMDs is
bacterial. The Alpha-amylase family comprises the
largest family of glycoside hydrolases (GH), with the
majority of enzymes acting on starch, glycogen, and
related oligo- and polysaccharides. These proteins
catalyze the transformation of alpha-1,4 and alpha-1,6
glucosidic linkages with retention of the anomeric
center. The protein is described as having 3 domains: A,
B, C. A is a (beta/alpha) 8-barrel; B is a loop between
the beta 3 strand and alpha 3 helix of A; C is the
C-terminal extension characterized by a Greek key. The
majority of the enzymes have an active site cleft found
between domains A and B where a triad of catalytic
residues (Asp, Glu and Asp) performs catalysis. Other
members of this family have lost the catalytic activity
as in the case of the human 4F2hc, or only have 2
residues that serve as the catalytic nucleophile and the
acid/base, such as Thermus A4 beta-galactosidase with 2
Glu residues (GH42) and human alpha-galactosidase with 2
Asp residues (GH31). The family members are quite
extensive and include: alpha amylase,
maltosyltransferase, cyclodextrin glycotransferase,
maltogenic amylase, neopullulanase, isoamylase,
1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 357
Score = 29.2 bits (66), Expect = 0.19
Identities = 10/36 (27%), Positives = 16/36 (44%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIAPYDEYYVW 46
G+++LLD V NH H A++ +E
Sbjct: 90 GLRVLLDGVFNHVGRSHPAVAQALEDGPGSEEDRWH 125
>gnl|CDD|200451 cd00551, AmyAc_family, Alpha amylase catalytic domain family. The
Alpha-amylase family comprises the largest family of
glycoside hydrolases (GH), with the majority of enzymes
acting on starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; and C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost this catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 260
Score = 28.3 bits (63), Expect = 0.40
Identities = 8/17 (47%), Positives = 10/17 (58%)
Query: 11 GIKILLDYVPNHTSDEH 27
GIK++LD V NH
Sbjct: 89 GIKVILDLVFNHDILRF 105
>gnl|CDD|227136 COG4799, COG4799, Acetyl-CoA carboxylase, carboxyltransferase
component (subunits alpha and beta) [Lipid metabolism].
Length = 526
Score = 28.3 bits (64), Expect = 0.44
Identities = 15/48 (31%), Positives = 22/48 (45%), Gaps = 9/48 (18%)
Query: 3 EEEEDAVTGIKILLDYVP---------NHTSDEHDWFAKSKAGIAPYD 41
E++EDA+ ++ LL Y+P T DE D + I P D
Sbjct: 236 EDDEDAIELVRRLLSYLPSNNREPPPVVPTPDEPDRDDEELDSIVPDD 283
>gnl|CDD|200454 cd11315, AmyAc_bac1_AmyA, Alpha amylase catalytic domain found in
bacterial Alpha-amylases (also called
1,4-alpha-D-glucan-4-glucanohydrolase). AmyA (EC
3.2.1.1) catalyzes the hydrolysis of alpha-(1,4)
glycosidic linkages of glycogen, starch, related
polysaccharides, and some oligosaccharides. This group
includes Firmicutes, Proteobacteria, Actinobacteria,
and Cyanobacteria. The Alpha-amylase family comprises
the largest family of glycoside hydrolases (GH), with
the majority of enzymes acting on starch, glycogen, and
related oligo- and polysaccharides. These proteins
catalyze the transformation of alpha-1,4 and alpha-1,6
glucosidic linkages with retention of the anomeric
center. The protein is described as having 3 domains:
A, B, C. A is a (beta/alpha) 8-barrel; B is a loop
between the beta 3 strand and alpha 3 helix of A; C is
the C-terminal extension characterized by a Greek key.
The majority of the enzymes have an active site cleft
found between domains A and B where a triad of
catalytic residues (Asp, Glu and Asp) performs
catalysis. Other members of this family have lost the
catalytic activity as in the case of the human 4F2hc,
or only have 2 residues that serve as the catalytic
nucleophile and the acid/base, such as Thermus A4
beta-galactosidase with 2 Glu residues (GH42) and human
alpha-galactosidase with 2 Asp residues (GH31). The
family members are quite extensive and include: alpha
amylase, maltosyltransferase, cyclodextrin
glycotransferase, maltogenic amylase, neopullulanase,
isoamylase, 1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 352
Score = 28.0 bits (63), Expect = 0.59
Identities = 9/19 (47%), Positives = 13/19 (68%)
Query: 11 GIKILLDYVPNHTSDEHDW 29
GIKI++D V NH ++E
Sbjct: 81 GIKIIVDVVFNHMANEGSA 99
>gnl|CDD|140217 PTZ00190, PTZ00190, 60S ribosomal protein L29; Provisional.
Length = 70
Score = 26.9 bits (59), Expect = 0.63
Identities = 15/58 (25%), Positives = 29/58 (50%), Gaps = 3/58 (5%)
Query: 21 NHTSDEHDWFAKS-KAGIAPYDEYYVWKEGKGVWIPGLLKKSRKFVNKKCSSLVTRLE 77
NHT+ H+ +K+ + GI ++ +G W+P L+ R + + ++L R E
Sbjct: 6 NHTN--HNQSSKNHRNGIKGPLPLHLHNSKRGSWLPALVNARRVRKHNQKAALKARRE 61
>gnl|CDD|223373 COG0296, GlgB, 1,4-alpha-glucan branching enzyme [Carbohydrate
transport and metabolism].
Length = 628
Score = 26.9 bits (60), Expect = 1.4
Identities = 11/35 (31%), Positives = 18/35 (51%), Gaps = 9/35 (25%)
Query: 11 GIKILLDYVPNHTS-DEHDWFAKSKAGIAPYDEYY 44
GI ++LD+VPNH D + +A +D +
Sbjct: 227 GIGVILDWVPNHFPPDGN--------YLARFDGTF 253
>gnl|CDD|200465 cd11326, AmyAc_Glg_debranch, Alpha amylase catalytic domain found
in glycogen debranching enzymes. Debranching enzymes
facilitate the breakdown of glycogen through
glucosyltransferase and glucosidase activity. These
activities are performed by a single enzyme in mammals,
yeast, and some bacteria, but by two distinct enzymes in
Escherichia coli and other bacteria. Debranching enzymes
perform two activities: 4-alpha-D-glucanotransferase (EC
2.4.1.25) and amylo-1,6-glucosidase (EC 3.2.1.33).
4-alpha-D-glucanotransferase catalyzes the
endohydrolysis of 1,6-alpha-D-glucoside linkages at
points of branching in chains of 1,4-linked
alpha-D-glucose residues. Amylo-alpha-1,6-glucosidase
catalyzes the endohydrolysis of 1,6-alpha-D-glucoside
linkages at points of branching in chains of 1,4-linked
alpha-D-glucose residues. In Escherichia coli, GlgX is
the debranching enzyme and malQ is the
4-alpha-glucanotransferase. TreX, an archaeal
glycogen-debranching enzyme has dual activities like
mammals and yeast, but is structurally similar to GlgX.
TreX exists in two oligomeric states, a dimer and
tetramer. Isoamylase (EC 3.2.1.68) is one of the
starch-debranching enzymes that catalyzes the hydrolysis
of alpha-1,6-glucosidic linkages specific in
alpha-glucans such as amylopectin or glycogen and their
beta-limit dextrins. The Alpha-amylase family comprises
the largest family of glycoside hydrolases (GH), with
the majority of enzymes acting on starch, glycogen, and
related oligo- and polysaccharides. These proteins
catalyze the transformation of alpha-1,4 and alpha-1,6
glucosidic linkages with retention of the anomeric
center. The protein is described as having 3 domains: A,
B, C. A is a (beta/alpha) 8-barrel; B is a loop between
the beta 3 strand and alpha 3 helix of A; C is the
C-terminal extension characterized by a Greek key. The
majority of the enzymes have an active site cleft found
between domains A and B where a triad of catalytic
residues (Asp, Glu and Asp) performs catalysis. Other
members of this family have lost the catalytic activity
as in the case of the human 4F2hc, or only have 2
residues that serve as the catalytic nucleophile and the
acid/base, such as Thermus A4 beta-galactosidase with 2
Glu residues (GH42) and human alpha-galactosidase with 2
Asp residues (GH31). The family members are quite
extensive and include: alpha amylase,
maltosyltransferase, cyclodextrin glycotransferase,
maltogenic amylase, neopullulanase, isoamylase,
1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 433
Score = 26.7 bits (60), Expect = 1.8
Identities = 8/13 (61%), Positives = 11/13 (84%)
Query: 11 GIKILLDYVPNHT 23
GI+++LD V NHT
Sbjct: 122 GIEVILDVVYNHT 134
>gnl|CDD|200480 cd11341, AmyAc_Pullulanase_LD-like, Alpha amylase catalytic domain
found in Pullulanase (also called dextrinase;
alpha-dextrin endo-1,6-alpha glucosidase), limit
dextrinase, and related proteins. Pullulanase is an
enzyme with action similar to that of isoamylase; it
cleaves 1,6-alpha-glucosidic linkages in pullulan,
amylopectin, and glycogen, and in alpha-and beta-amylase
limit-dextrins of amylopectin and glycogen. Pullulanases
are very similar to limit dextrinases, although they
differ in their action on glycogen and the rate of
hydrolysis of limit dextrins. The Alpha-amylase family
comprises the largest family of glycoside hydrolases
(GH), with the majority of enzymes acting on starch,
glycogen, and related oligo- and polysaccharides. These
proteins catalyze the transformation of alpha-1,4 and
alpha-1,6 glucosidic linkages with retention of the
anomeric center. The protein is described as having 3
domains: A, B, C. A is a (beta/alpha) 8-barrel; B is a
loop between the beta 3 strand and alpha 3 helix of A; C
is the C-terminal extension characterized by a Greek
key. The majority of the enzymes have an active site
cleft found between domains A and B where a triad of
catalytic residues (Asp, Glu and Asp) performs
catalysis. Other members of this family have lost the
catalytic activity as in the case of the human 4F2hc, or
only have 2 residues that serve as the catalytic
nucleophile and the acid/base, such as Thermus A4
beta-galactosidase with 2 Glu residues (GH42) and human
alpha-galactosidase with 2 Asp residues (GH31). The
family members are quite extensive and include: alpha
amylase, maltosyltransferase, cyclodextrin
glycotransferase, maltogenic amylase, neopullulanase,
isoamylase, 1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 406
Score = 26.7 bits (60), Expect = 1.9
Identities = 15/35 (42%), Positives = 20/35 (57%), Gaps = 7/35 (20%)
Query: 11 GIKILLDYVPNHTSD-EHDWFAKSKAGIAPYDEYY 44
GI++++D V NHT D E+ F K I P YY
Sbjct: 120 GIRVIMDVVYNHTYDSENSPFEK----IVPG--YY 148
>gnl|CDD|200475 cd11336, AmyAc_MTSase, Alpha amylase catalytic domain found in
maltooligosyl trehalose synthase (MTSase).
Maltooligosyl trehalose synthase (MTSase) domain.
MTSase and maltooligosyl trehalose trehalohydrolase
(MTHase) work together to produce trehalose. MTSase is
responsible for converting the alpha-1,4-glucosidic
linkage to an alpha,alpha-1,1-glucosidic linkage at the
reducing end of the maltooligosaccharide through an
intramolecular transglucosylation reaction, while
MTHase hydrolyzes the penultimate alpha-1,4 linkage of
the reducing end, resulting in the release of
trehalose. The Alpha-amylase family comprises the
largest family of glycoside hydrolases (GH), with the
majority of enzymes acting on starch, glycogen, and
related oligo- and polysaccharides. These proteins
catalyze the transformation of alpha-1,4 and alpha-1,6
glucosidic linkages with retention of the anomeric
center. The protein is described as having 3 domains:
A, B, C. A is a (beta/alpha) 8-barrel; B is a loop
between the beta 3 strand and alpha 3 helix of A; C is
the C-terminal extension characterized by a Greek key.
The majority of the enzymes have an active site cleft
found between domains A and B where a triad of
catalytic residues (Asp, Glu and Asp) performs
catalysis. Other members of this family have lost the
catalytic activity as in the case of the human 4F2hc,
or only have 2 residues that serve as the catalytic
nucleophile and the acid/base, such as Thermus A4
beta-galactosidase with 2 Glu residues (GH42) and human
alpha-galactosidase with 2 Asp residues (GH31). The
family members are quite extensive and include: alpha
amylase, maltosyltransferase, cyclodextrin
glycotransferase, maltogenic amylase, neopullulanase,
isoamylase, 1,4-alpha-D-glucan maltotetrahydrolase,
4-alpha-glucotransferase, oligo-1,6-glucosidase,
amylosucrase, sucrose phosphorylase, and amylomaltase.
Length = 660
Score = 26.3 bits (59), Expect = 2.7
Identities = 7/12 (58%), Positives = 10/12 (83%)
Query: 11 GIKILLDYVPNH 22
G+ ++LD VPNH
Sbjct: 76 GMGLILDIVPNH 87
>gnl|CDD|237740 PRK14511, PRK14511, maltooligosyl trehalose synthase;
Provisional.
Length = 879
Score = 26.1 bits (58), Expect = 2.9
Identities = 7/12 (58%), Positives = 10/12 (83%)
Query: 11 GIKILLDYVPNH 22
G+ ++LD VPNH
Sbjct: 82 GMGLILDIVPNH 93
>gnl|CDD|237737 PRK14507, PRK14507, putative bifunctional
4-alpha-glucanotransferase/malto-oligosyltrehalose
synthase; Provisional.
Length = 1693
Score = 26.2 bits (58), Expect = 3.0
Identities = 8/12 (66%), Positives = 9/12 (75%)
Query: 11 GIKILLDYVPNH 22
G+ LLD VPNH
Sbjct: 820 GLGQLLDIVPNH 831
>gnl|CDD|200487 cd11349, AmyAc_3, Alpha amylase catalytic domain found in an
uncharacterized protein family. The Alpha-amylase
family comprises the largest family of glycoside
hydrolases (GH), with the majority of enzymes acting on
starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 456
Score = 26.1 bits (58), Expect = 3.2
Identities = 7/12 (58%), Positives = 12/12 (100%)
Query: 11 GIKILLDYVPNH 22
G+K+++D+VPNH
Sbjct: 120 GLKVIIDFVPNH 131
>gnl|CDD|225181 COG2272, PnbA, Carboxylesterase type B [Lipid metabolism].
Length = 491
Score = 25.9 bits (57), Expect = 3.7
Identities = 10/75 (13%), Positives = 16/75 (21%), Gaps = 9/75 (12%)
Query: 5 EEDAVTGIKILLDYVPNHTSDEHDWFAKSKAGIAPY-----DEYYVWKEGKGVWIPGLLK 59
+ G+ +++ DE F P KE
Sbjct: 290 AQGRSHGVPLMIGT----NHDEGSLFINFNPDSPPGLRDKVAARLPGKELINAERVPAAY 345
Query: 60 KSRKFVNKKCSSLVT 74
+LVT
Sbjct: 346 PGVSAAAAAFGALVT 360
>gnl|CDD|184191 PRK13629, PRK13629, threonine/serine transporter TdcC; Provisional.
Length = 443
Score = 25.6 bits (56), Expect = 4.7
Identities = 9/22 (40%), Positives = 14/22 (63%)
Query: 62 RKFVNKKCSSLVTRLEIWYVAV 83
R F +KCS +++R + VAV
Sbjct: 245 RDFTERKCSQIISRASMLMVAV 266
>gnl|CDD|237739 PRK14510, PRK14510, putative bifunctional
4-alpha-glucanotransferase/glycogen debranching enzyme;
Provisional.
Length = 1221
Score = 25.6 bits (56), Expect = 4.8
Identities = 8/15 (53%), Positives = 11/15 (73%)
Query: 11 GIKILLDYVPNHTSD 25
GI ++LD V NHT +
Sbjct: 260 GIAVILDVVFNHTGE 274
>gnl|CDD|200488 cd11350, AmyAc_4, Alpha amylase catalytic domain found in an
uncharacterized protein family. The Alpha-amylase
family comprises the largest family of glycoside
hydrolases (GH), with the majority of enzymes acting on
starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
(GH31). The family members are quite extensive and
include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 390
Score = 25.3 bits (56), Expect = 5.2
Identities = 11/48 (22%), Positives = 15/48 (31%), Gaps = 5/48 (10%)
Query: 11 GIKILLDYVPNHTSDEH-----DWFAKSKAGIAPYDEYYVWKEGKGVW 53
GI ++LD V NH + W A + VW
Sbjct: 95 GIAVILDVVYNHAEGQSPLARLYWDYWYNPPPADPPWFNVWGPHFYYV 142
>gnl|CDD|180584 PRK06481, PRK06481, fumarate reductase flavoprotein subunit;
Validated.
Length = 506
Score = 25.2 bits (55), Expect = 6.5
Identities = 24/61 (39%), Positives = 30/61 (49%), Gaps = 7/61 (11%)
Query: 32 KSKAGIAPYDEYYVWKEGKGVWIPGLLKKSRKFVNKKCSSLVTRLEIWYVAVKCDKDVTF 91
+ KA IA Y+E +EGK I L KK +N +L L+ W AVK KD F
Sbjct: 362 RVKA-IAQYEEKGFVEEGKT--IDELAKK----INVPAETLTKTLDTWNKAVKNKKDEAF 414
Query: 92 G 92
G
Sbjct: 415 G 415
>gnl|CDD|236543 PRK09505, malS, alpha-amylase; Reviewed.
Length = 683
Score = 25.0 bits (55), Expect = 6.9
Identities = 9/14 (64%), Positives = 10/14 (71%)
Query: 11 GIKILLDYVPNHTS 24
GI+IL D V NHT
Sbjct: 305 GIRILFDVVMNHTG 318
>gnl|CDD|179920 PRK05054, PRK05054, exoribonuclease II; Provisional.
Length = 644
Score = 24.8 bits (55), Expect = 8.5
Identities = 11/24 (45%), Positives = 13/24 (54%), Gaps = 1/24 (4%)
Query: 32 KSKAGIAPYDEYYVWKEGKGVWIP 55
+SKA +A YD W E G W P
Sbjct: 307 ESKAKLA-YDNVSDWLENGGDWQP 329
>gnl|CDD|200489 cd11352, AmyAc_5, Alpha amylase catalytic domain found in an
uncharacterized protein family. The Alpha-amylase
family comprises the largest family of glycoside
hydrolases (GH), with the majority of enzymes acting on
starch, glycogen, and related oligo- and
polysaccharides. These proteins catalyze the
transformation of alpha-1,4 and alpha-1,6 glucosidic
linkages with retention of the anomeric center. The
protein is described as having 3 domains: A, B, C. A is
a (beta/alpha) 8-barrel; B is a loop between the beta 3
strand and alpha 3 helix of A; C is the C-terminal
extension characterized by a Greek key. The majority of
the enzymes have an active site cleft found between
domains A and B where a triad of catalytic residues
(Asp, Glu and Asp) performs catalysis. Other members of
this family have lost the catalytic activity as in the
case of the human 4F2hc, or only have 2 residues that
serve as the catalytic nucleophile and the acid/base,
such as Thermus A4 beta-galactosidase with 2 Glu
residues (GH42) and human alpha-galactosidase with 2 Asp
residues (GH31). The family members are quite extensive
and include: alpha amylase, maltosyltransferase,
cyclodextrin glycotransferase, maltogenic amylase,
neopullulanase, isoamylase, 1,4-alpha-D-glucan
maltotetrahydrolase, 4-alpha-glucotransferase,
oligo-1,6-glucosidase, amylosucrase, sucrose
phosphorylase, and amylomaltase.
Length = 443
Score = 24.6 bits (54), Expect = 8.8
Identities = 10/60 (16%), Positives = 17/60 (28%), Gaps = 4/60 (6%)
Query: 11 GIKILLDYVPNHTSDEHDWFAKSKAGIAPYDEYYVWKEGKGVWIPGLLKKSRKFVNKKCS 70
GI ++LD + NH+ D F+ Y G + +
Sbjct: 114 GIYVILDIILNHSGDV---FSYDDDRPYSSSPGYYRG-FPNYPPGGWFIGGDQDALPEWR 169
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
0.317 0.136 0.434
Gapped
Lambda K H
0.267 0.0720 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 4,722,521
Number of extensions: 375719
Number of successful extensions: 303
Number of sequences better than 10.0: 1
Number of HSP's gapped: 297
Number of HSP's successfully gapped: 59
Length of query: 92
Length of database: 10,937,602
Length adjustment: 59
Effective length of query: 33
Effective length of database: 8,320,716
Effective search space: 274583628
Effective search space used: 274583628
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 (24.2 bits)