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2QMK
Asym. Unit
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Asym.Unit (91 KB)
Biol.Unit 1 (87 KB)
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(1)
Title
:
HUMAN PANCREATIC ALPHA-AMYLASE COMPLEXED WITH NITRITE
Authors
:
L. K. Williams, R. Maurus, G. D. Brayer
Date
:
16 Jul 07 (Deposition) - 25 Mar 08 (Release) - 13 Jul 11 (Revision)
Method
:
X-RAY DIFFRACTION
Resolution
:
2.30
Chains
:
Asym. Unit : A
Biol. Unit 1: A (1x)
Keywords
:
Amylase, Pichia Pastoris, Diabetes, Catalysis, Pancreatic, Enzyme, Human, Hydrolase, Anion Activation, Nitrite, Chloride, Carbohydrate Metabolism, Glycoprotein, Glycosidase, Metal-Binding, Pyrrolidone Carboxylic Acid, Secreted
(Keyword Search:
[
Gene Ontology, PubMed, Web (Google)
]
)
Reference
:
R. Maurus, A. Begum, L. K. Williams, J. R. Fredriksen, R. Zhang, S. G. Withers, G. D. Brayer
Alternative Catalytic Anions Differentially Modulate Human Alpha-Amylase Activity And Specificity
Biochemistry V. 47 3332 2008
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Hetero Components
(4, 4)
Info
All Hetero Components
1a: CALCIUM ION (CAa)
2a: N-ACETYL-D-GLUCOSAMINE (NAGa)
3a: NITRITE ION (NO2a)
4a: PYROGLUTAMIC ACID (PCAa)
View:
Select:
Label:
No.
Name
Count
Type
Full Name
1
CA
1
Ligand/Ion
CALCIUM ION
2
NAG
1
Ligand/Ion
N-ACETYL-D-GLUCOSAMINE
3
NO2
1
Ligand/Ion
NITRITE ION
4
PCA
1
Mod. Amino Acid
PYROGLUTAMIC ACID
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Sites
(3, 3)
Info
All Sites
1: AC1 (SOFTWARE)
2: AC2 (SOFTWARE)
3: AC3 (SOFTWARE)
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No.
Name
Evidence
Residues
Description
1
AC1
SOFTWARE
ARG A:176 , TRP A:203 , ASP A:206 , ASN A:459 , ASN A:461 , HOH A:585 , HOH A:658 , HOH A:719 , HOH A:742
BINDING SITE FOR RESIDUE NAG A 497
2
AC2
SOFTWARE
ASN A:100 , ARG A:158 , ASP A:167 , HIS A:201 , HOH A:516 , HOH A:630 , HOH A:736
BINDING SITE FOR RESIDUE CA A 498
3
AC3
SOFTWARE
ARG A:195 , GLU A:233 , THR A:254 , PHE A:295 , ASN A:298 , ARG A:337
BINDING SITE FOR RESIDUE NO2 A 499
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SAPs(SNPs)/Variants
(0, 0)
Info
(mutated residues are not available)
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PROSITE Patterns/Profiles
(0, 0)
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Exons
(0, 0)
Info
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Note:
Exon boundaries colored in "red" are actually farther away from the residue due to missing residues in the structure.
SCOP Domains
(2, 2)
Info
All SCOP Domains
1a: SCOP_d2qmka1 (A:404-496)
2a: SCOP_d2qmka2 (A:1-403)
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Protein Domains
(
)
(
)
Organisms
(
)
(
)
Class
:
All beta proteins
(24004)
Fold
:
Glycosyl hydrolase domain
(397)
Superfamily
:
Glycosyl hydrolase domain
(397)
Family
:
alpha-Amylases, C-terminal beta-sheet domain
(272)
Protein domain
:
Animal alpha-amylase
(64)
Human (Homo sapiens) [TaxId: 9606]
(47)
1a
d2qmka1
A:404-496
Class
:
Alpha and beta proteins (a/b)
(23833)
Fold
:
TIM beta/alpha-barrel
(3956)
Superfamily
:
(Trans)glycosidases
(1191)
Family
:
Amylase, catalytic domain
(385)
Protein domain
:
Animal alpha-amylase
(64)
Human (Homo sapiens) [TaxId: 9606]
(47)
2a
d2qmka2
A:1-403
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CATH Domains
(2, 2)
Info
all CATH domains
1a: CATH_2qmkA01 (A:2-403)
2a: CATH_2qmkA02 (A:404-496)
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(
)
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Architectures
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)
(
)
Topologies
(
)
(
)
Homologous Superfamilies
(
)
(
)
Organisms
(
)
(
)
Class
:
Alpha Beta
(26913)
Architecture
:
Alpha-Beta Barrel
(2994)
Topology
:
TIM Barrel
(2806)
Homologous Superfamily
:
Glycosidases
(843)
Human (Homo sapiens)
(94)
1a
2qmkA01
A:2-403
Class
:
Mainly Beta
(13760)
Architecture
:
Sandwich
(5577)
Topology
:
Immunoglobulin-like
(3897)
Homologous Superfamily
:
Golgi alpha-mannosidase II
(346)
Human (Homo sapiens)
(76)
2a
2qmkA02
A:404-496
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Pfam Domains
(2, 2)
Info
all PFAM domains
1a: PFAM_Alpha_amylase_C_2qmkA01 (A:406-495)
2a: PFAM_Alpha_amylase_2qmkA02 (A:21-336)
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Clans
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Organisms
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)
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)
Clan
:
GHD
(106)
Family
:
Alpha-amylase_C
(82)
Homo sapiens (Human)
(31)
1a
Alpha-amylase_C-2qmkA01
A:406-495
Clan
:
Glyco_hydro_tim
(488)
Family
:
Alpha-amylase
(138)
Homo sapiens (Human)
(31)
2a
Alpha-amylase-2qmkA02
A:21-336
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Chain A
Asymmetric Unit 1
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Asym.Unit (91 KB)
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