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1AQM
Asym. Unit
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Asym.Unit (102 KB)
Biol.Unit 1 (97 KB)
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(1)
Title
:
ALPHA-AMYLASE FROM ALTEROMONAS HALOPLANCTIS COMPLEXED WITH TRIS
Authors
:
N. Aghajari, R. Haser
Date
:
31 Jul 97 (Deposition) - 02 Mar 99 (Release) - 24 Feb 09 (Revision)
Method
:
X-RAY DIFFRACTION
Resolution
:
1.85
Chains
:
Asym. Unit : A
Biol. Unit 1: A (1x)
Keywords
:
Alpha-Amylase, Alpha-1, 4-Glucan-4-Glucanohydrolase, Beta- Alpha-Eight Barrel, Psychrophilic Enzyme, Glycosidase Inhibition, Hydrolase
(Keyword Search:
[
Gene Ontology, PubMed, Web (Google)
]
)
Reference
:
N. Aghajari, G. Feller, C. Gerday, R. Haser
Crystal Structures Of The Psychrophilic Alpha-Amylase From Alteromonas Haloplanctis In Its Native Form And Complexed With An Inhibitor.
Protein Sci. V. 7 564 1998
(for further references see the
PDB file header
)
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Hetero Components
(3, 3)
Info
All Hetero Components
1a: CALCIUM ION (CAa)
2a: CHLORIDE ION (CLa)
3a: 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,... (TRSa)
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No.
Name
Count
Type
Full Name
1
CA
1
Ligand/Ion
CALCIUM ION
2
CL
1
Ligand/Ion
CHLORIDE ION
3
TRS
1
Ligand/Ion
2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
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Sites
(6, 6)
Info
All Sites
1: AC1 (SOFTWARE)
2: AC2 (SOFTWARE)
3: AC3 (SOFTWARE)
4: AVE (UNKNOWN)
5: CDE (UNKNOWN)
6: CUM (UNKNOWN)
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No.
Name
Evidence
Residues
Description
1
AC1
SOFTWARE
ASN A:88 , GLN A:135 , ASP A:144 , HIS A:178 , HOH A:1091 , HOH A:1107 , HOH A:1108
BINDING SITE FOR RESIDUE CA A 800
2
AC2
SOFTWARE
ARG A:172 , ASN A:262 , LYS A:300
BINDING SITE FOR RESIDUE CL A 900
3
AC3
SOFTWARE
ARG A:172 , ASP A:174 , ALA A:175 , GLU A:200 , ASP A:264 , HOH A:1196 , HOH A:1203
BINDING SITE FOR RESIDUE TRS A 600
4
AVE
UNKNOWN
ASP A:174 , GLU A:200 , ASP A:264
ALL ACTIVE SITE RESIDUES INTERACT WITH THE TRIS MOLECULE.
5
CDE
UNKNOWN
ARG A:172 , LYS A:300 , ASN A:262 , HOH A:1003
CHLORIDE IS AN ACTIVATOR FOR THIS ENZYME.
6
CUM
UNKNOWN
ASN A:88 , ASP A:144 , GLN A:135 , HIS A:178 , HOH A:1108 , HOH A:1091 , HOH A:1107
CALCIUM BINDING SITE.
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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)
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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_d1aqma1 (A:355-448)
2a: SCOP_d1aqma2 (A:1-354)
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Protein Domains
(
)
(
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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
:
Bacterial alpha-Amylase
(35)
Pseudoalteromonas haloplanktis [TaxId: 228]
(9)
1a
d1aqma1
A:355-448
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
:
Bacterial alpha-amylase
(35)
Pseudoalteromonas haloplanktis [TaxId: 228]
(9)
2a
d1aqma2
A:1-354
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CATH Domains
(2, 2)
Info
all CATH domains
1a: CATH_1aqmA01 (A:1-354)
2a: CATH_1aqmA02 (A:355-447)
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)
Homologous Superfamilies
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)
(
)
Organisms
(
)
(
)
Class
:
Alpha Beta
(26913)
Architecture
:
Alpha-Beta Barrel
(2994)
Topology
:
TIM Barrel
(2806)
Homologous Superfamily
:
Glycosidases
(843)
Pseudoalteromonas haloplanktis. Organism_taxid: 228. Strain: a23. Cell_line: rr1.
(2)
1a
1aqmA01
A:1-354
Class
:
Mainly Beta
(13760)
Architecture
:
Sandwich
(5577)
Topology
:
Immunoglobulin-like
(3897)
Homologous Superfamily
:
Golgi alpha-mannosidase II
(346)
Pseudoalteromonas haloplanktis. Organism_taxid: 228. Strain: a23. Cell_line: rr1.
(2)
2a
1aqmA02
A:355-447
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Pfam Domains
(0, 0)
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Chain A
Asymmetric Unit 1
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Asym.Unit (102 KB)
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