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1LTB
Asym. Unit
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Asym.Unit (129 KB)
Biol.Unit 1 (125 KB)
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(1)
Title
:
2.6 ANGSTROMS CRYSTAL STRUCTURE OF PARTIALLY-ACTIVATED E. COLI HEAT-LABILE ENTEROTOXIN (LT)
Authors
:
E. A. Merritt, T. K. Sixma, W. G. J. Hol
Date
:
15 Sep 93 (Deposition) - 31 Jan 94 (Release) - 24 Feb 09 (Revision)
Method
:
X-RAY DIFFRACTION
Resolution
:
2.60
Chains
:
Asym. Unit : A,C,D,E,F,G,H
Biol. Unit 1: A,C,D,E,F,G,H (1x)
Keywords
:
Enterotoxin
(Keyword Search:
[
Gene Ontology, PubMed, Web (Google)
]
)
Reference
:
E. A. Merritt, S. E. Pronk, T. K. Sixma, K. H. Kalk, B. A. Van Zanten, W. G. Hol
Structure Of Partially-Activated E. Coli Heat-Labile Enterotoxin (Lt) At 2. 6 A Resolution.
Febs Lett. V. 337 88 1994
(for further references see the
PDB file header
)
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Hetero Components
(0, 0)
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Sites
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SAPs(SNPs)/Variants
(2, 6)
Info
(mutated residues are not available)
All SNPs/Variants
1: VAR_ELBP_ECOLX_001 (T75A, chain D/E/F/G/H, )
2: VAR_ELAP_ECOLX_001 (E112K, chain A, )
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dbSNP
PDB
No.
Source
Variant ID
Variant
UniProt ID
Status
ID
Chain
Variant
1
UniProt
VAR_ELBP_ECOLX_001
*
T
96
A
ELBP_ECOLX
---
---
D/E/F/G/H
T
75
A
2
UniProt
VAR_ELAP_ECOLX_001
*
E
130
K
ELAP_ECOLX
---
---
A
E
112
K
* ID not provided by source
SNP/SAP Summary Statistics
(UniProtKB/Swiss-Prot)
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PROSITE Patterns/Profiles
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Exons
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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, 6)
Info
All SCOP Domains
1a: SCOP_d1ltbd_ (D:)
1b: SCOP_d1ltbe_ (E:)
1c: SCOP_d1ltbf_ (F:)
1d: SCOP_d1ltbg_ (G:)
1e: SCOP_d1ltbh_ (H:)
2a: SCOP_d1ltb_1 (A:,C:)
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Protein Domains
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Organisms
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)
Class
:
All beta proteins
(24004)
Fold
:
OB-fold
(1179)
Superfamily
:
Bacterial enterotoxins
(188)
Family
:
Bacterial AB5 toxins, B-subunits
(85)
Protein domain
:
Heat-labile toxin
(24)
Escherichia coli, type IB [TaxId: 562]
(21)
1a
d1ltbd_
D:
1b
d1ltbe_
E:
1c
d1ltbf_
F:
1d
d1ltbg_
G:
1e
d1ltbh_
H:
Class
:
Alpha and beta proteins (a+b)
(23004)
Fold
:
ADP-ribosylation
(157)
Superfamily
:
ADP-ribosylation
(157)
Family
:
ADP-ribosylating toxins
(85)
Protein domain
:
Heat-labile toxin, A-chain
(10)
Escherichia coli, type IB [TaxId: 562]
(9)
2a
d1ltb.1
A:,C:
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CATH Domains
(3, 7)
Info
all CATH domains
1a: CATH_1ltbA00 (A:4-188)
2a: CATH_1ltbC00 (C:196-236)
3a: CATH_1ltbD00 (D:1-103)
3b: CATH_1ltbE00 (E:1-103)
3c: CATH_1ltbF00 (F:1-103)
3d: CATH_1ltbG00 (G:1-103)
3e: CATH_1ltbH00 (H:1-103)
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Organisms
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Class
:
Alpha Beta
(26913)
Architecture
:
Alpha-Beta Complex
(3881)
Topology
:
Heat-Labile Enterotoxin; Chain A
(22)
Homologous Superfamily
:
Heat-Labile Enterotoxin, subunit A
(22)
Escherichia coli. Organism_taxid: 562.
(2)
1a
1ltbA00
A:4-188
Class
:
Mainly Alpha
(13335)
Architecture
:
Up-down Bundle
(3216)
Topology
:
Single alpha-helices involved in coiled-coils or other helix-helix interfaces
(552)
Homologous Superfamily
:
[code=1.20.5.240, no name defined]
(8)
Escherichia coli. Organism_taxid: 562.
(2)
2a
1ltbC00
C:196-236
Class
:
Mainly Beta
(13760)
Architecture
:
Beta Barrel
(4804)
Topology
:
OB fold (Dihydrolipoamide Acetyltransferase, E2P)
(1040)
Homologous Superfamily
:
[code=2.40.50.110, no name defined]
(136)
Escherichia coli. Organism_taxid: 562.
(6)
3a
1ltbD00
D:1-103
3b
1ltbE00
E:1-103
3c
1ltbF00
F:1-103
3d
1ltbG00
G:1-103
3e
1ltbH00
H:1-103
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Pfam Domains
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Asym.Unit (129 KB)
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