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1C7S
Asym. Unit
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Asym.Unit (159 KB)
Biol.Unit 1 (305 KB)
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(1)
Title
:
BETA-N-ACETYLHEXOSAMINIDASE MUTANT D539A COMPLEXED WITH DI-N-ACETYL-BETA-D-GLUCOSAMINE (CHITOBIASE)
Authors
:
G. Prag, Y. Papanikolau, G. Tavlas, C. E. Vorgias, K. Petratos, A. B. Oppenheim
Date
:
14 Mar 00 (Deposition) - 20 Sep 00 (Release) - 24 Feb 09 (Revision)
Method
:
X-RAY DIFFRACTION
Resolution
:
1.80
Chains
:
Asym. Unit : A
Biol. Unit 1: A (2x)
Keywords
:
Glycosyl Hydrolase, Beta-N-Acetylhexosaminidase, Chitinolysis, A/B(Tim)-Barrel, Site Directed Mutagenesis, Substrate Nucleophile Stabilizer Mutation, X-Ray Diffraction
(Keyword Search:
[
Gene Ontology, PubMed, Web (Google)
]
)
Reference
:
G. Prag, Y. Papanikolau, G. Tavlas, C. E. Vorgias, K. Petratos, A. B. Oppenheim
Structures Of Chitobiase Mutants Complexed With The Substrate Di-N-Acetyl-D-Glucosamine: The Catalytic Role Of The Conserved Acidic Pair, Aspartate 539 And Glutamate 540.
J. Mol. Biol. V. 300 611 2000
(for further references see the
PDB file header
)
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Hetero Components
(2, 5)
Info
All Hetero Components
1a: DI(N-ACETYL-D-GLUCOSAMINE) (CBSa)
2a: SULFATE ION (SO4a)
2b: SULFATE ION (SO4b)
2c: SULFATE ION (SO4c)
2d: SULFATE ION (SO4d)
View:
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Label:
No.
Name
Count
Type
Full Name
1
CBS
1
Ligand/Ion
DI(N-ACETYL-D-GLUCOSAMINE)
2
SO4
4
Ligand/Ion
SULFATE ION
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Sites
(5, 5)
Info
All Sites
1: AC1 (SOFTWARE)
2: AC2 (SOFTWARE)
3: AC3 (SOFTWARE)
4: AC4 (SOFTWARE)
5: AC5 (SOFTWARE)
View:
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Label:
No.
Name
Evidence
Residues
Description
1
AC1
SOFTWARE
ARG A:93 , ARG A:349 , HIS A:452 , VAL A:493 , GLN A:494 , ALA A:539 , GLU A:540 , TRP A:616 , TRP A:639 , TYR A:669 , ASP A:671 , PHE A:672 , TYR A:683 , TRP A:685 , TRP A:737 , GLU A:739 , HOH A:2013 , HOH A:2019 , HOH A:2026 , HOH A:2353 , HOH A:2497 , HOH A:2631
BINDING SITE FOR RESIDUE CBS A 1001
2
AC2
SOFTWARE
THR A:109 , ARG A:454 , ASN A:497 , ARG A:498 , GLN A:499 , HOH A:2525 , HOH A:2722
BINDING SITE FOR RESIDUE SO4 A 2001
3
AC3
SOFTWARE
LYS A:532 , ARG A:633 , ARG A:825 , HOH A:2301
BINDING SITE FOR RESIDUE SO4 A 2003
4
AC4
SOFTWARE
GLN A:94 , HIS A:107 , HOH A:2562
BINDING SITE FOR RESIDUE SO4 A 2004
5
AC5
SOFTWARE
LYS A:104 , THR A:118 , ALA A:119 , HOH A:2349 , HOH A:2567
BINDING SITE FOR RESIDUE SO4 A 2002
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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
(4, 4)
Info
All SCOP Domains
1a: SCOP_d1c7sa2 (A:28-200)
2a: SCOP_d1c7sa1 (A:781-885)
3a: SCOP_d1c7sa4 (A:201-337)
4a: SCOP_d1c7sa3 (A:338-780)
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)
(
)
Protein Domains
(
)
(
)
Organisms
(
)
(
)
Class
:
All beta proteins
(24004)
Fold
:
Common fold of diphtheria toxin/transcription factors/cytochrome f
(364)
Superfamily
:
Carbohydrate-binding domain
(66)
Family
:
Bacterial chitobiase, n-terminal domain
(4)
Protein domain
:
Bacterial chitobiase, n-terminal domain
(4)
Serratia marcescens [TaxId: 615]
(4)
1a
d1c7sa2
A:28-200
Fold
:
Immunoglobulin-like beta-sandwich
(7299)
Superfamily
:
E set domains
(509)
Family
:
E-set domains of sugar-utilizing enzymes
(147)
Protein domain
:
Bacterial chitobiase (N-acetyl-beta-glucoseaminidase), C-terminal domain
(4)
Serratia marcescens [TaxId: 615]
(4)
2a
d1c7sa1
A:781-885
Class
:
Alpha and beta proteins (a+b)
(23004)
Fold
:
Zincin-like
(701)
Superfamily
:
beta-N-acetylhexosaminidase-like domain
(54)
Family
:
beta-N-acetylhexosaminidase domain
(18)
Protein domain
:
Bacterial chitobiase, Domain 2
(4)
Serratia marcescens [TaxId: 615]
(4)
3a
d1c7sa4
A:201-337
Class
:
Alpha and beta proteins (a/b)
(23833)
Fold
:
TIM beta/alpha-barrel
(3956)
Superfamily
:
(Trans)glycosidases
(1191)
Family
:
beta-N-acetylhexosaminidase catalytic domain
(22)
Protein domain
:
Bacterial chitobiase (beta-N-acetylhexosaminidase)
(4)
Serratia marcescens [TaxId: 615]
(4)
4a
d1c7sa3
A:338-780
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CATH Domains
(4, 4)
Info
all CATH domains
1a: CATH_1c7sA02 (A:209-335)
2a: CATH_1c7sA03 (A:336-819)
3a: CATH_1c7sA01 (A:28-169)
4a: CATH_1c7sA04 (A:820-885)
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)
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)
Organisms
(
)
(
)
Class
:
Alpha Beta
(26913)
Architecture
:
2-Layer Sandwich
(8480)
Topology
:
Chitobiase; domain 2
(28)
Homologous Superfamily
:
Chitobiase, domain 2
(28)
Serratia marcescens. Organism_taxid: 615. Strain: a9301.
(1)
1a
1c7sA02
A:209-335
Architecture
:
Alpha-Beta Barrel
(2994)
Topology
:
TIM Barrel
(2806)
Homologous Superfamily
:
Glycosidases
(843)
Serratia marcescens. Organism_taxid: 615. Strain: a9301.
(1)
2a
1c7sA03
A:336-819
Class
:
Mainly Beta
(13760)
Architecture
:
Sandwich
(5577)
Topology
:
Immunoglobulin-like
(3897)
Homologous Superfamily
:
[code=2.60.40.290, no name defined]
(12)
Serratia marcescens. Organism_taxid: 615. Strain: a9301.
(1)
3a
1c7sA01
A:28-169
Homologous Superfamily
:
[code=2.60.40.320, no name defined]
(46)
Serratia marcescens. Organism_taxid: 615. Strain: a9301.
(1)
4a
1c7sA04
A:820-885
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Pfam Domains
(0, 0)
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Chain A
Asymmetric Unit 1
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Asym.Unit (159 KB)
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