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1LTA
Asym. Unit
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Asym.Unit (134 KB)
Biol.Unit 1 (130 KB)
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(1)
Title
:
2.2 ANGSTROMS CRYSTAL STRUCTURE OF E. COLI HEAT-LABILE ENTEROTOXIN (LT) WITH BOUND GALACTOSE
Authors
:
E. A. Merritt, T. K. Sixma, K. H. Kalk, B. A. M. Van Zanten, W. G. J. Hol
Date
:
15 Sep 93 (Deposition) - 31 Jan 94 (Release) - 24 Feb 09 (Revision)
Method
:
X-RAY DIFFRACTION
Resolution
:
2.20
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, T. K. Sixma, K. H. Kalk, B. A. Van Zanten, W. G. Hol
Galactose-Binding Site In Escherichia Coli Heat-Labile Enterotoxin (Lt) And Cholera Toxin (Ct).
Mol. Microbiol. V. 13 745 1994
(for further references see the
PDB file header
)
[
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Hetero Components
(1, 5)
Info
All Hetero Components
1a: BETA-D-GALACTOSE (GALa)
1b: BETA-D-GALACTOSE (GALb)
1c: BETA-D-GALACTOSE (GALc)
1d: BETA-D-GALACTOSE (GALd)
1e: BETA-D-GALACTOSE (GALe)
View:
Select:
Label:
No.
Name
Count
Type
Full Name
1
GAL
5
Ligand/Ion
BETA-D-GALACTOSE
[
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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:
Select:
Label:
No.
Name
Evidence
Residues
Description
1
AC1
SOFTWARE
GLU D:51 , GLN D:56 , HIS D:57 , GLN D:61 , TRP D:88 , ASN D:90 , LYS D:91 , HOH D:123 , HOH D:156
BINDING SITE FOR RESIDUE GAL D 104
2
AC2
SOFTWARE
GLU E:51 , GLN E:56 , HIS E:57 , GLN E:61 , TRP E:88 , ASN E:90 , LYS E:91 , HOH E:127 , HOH E:137
BINDING SITE FOR RESIDUE GAL E 104
3
AC3
SOFTWARE
GLU F:51 , GLN F:56 , HIS F:57 , GLN F:61 , TRP F:88 , ASN F:90 , LYS F:91 , HOH F:132 , HOH F:133
BINDING SITE FOR RESIDUE GAL F 104
4
AC4
SOFTWARE
GLU G:51 , GLN G:56 , HIS G:57 , GLN G:61 , TRP G:88 , ASN G:90 , LYS G:91 , HOH G:128 , HOH G:147 , HOH H:124
BINDING SITE FOR RESIDUE GAL G 104
5
AC5
SOFTWARE
GLU H:51 , GLN H:56 , HIS H:57 , GLN H:61 , TRP H:88 , ASN H:90 , LYS H:91 , HOH H:116 , HOH H:142 , HOH H:143
BINDING SITE FOR RESIDUE GAL H 104
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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, )
View:
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Label:
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
(0, 0)
Info
All PROSITE Patterns/Profiles
;
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End label:
Sorry, no Info available
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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, 6)
Info
All SCOP Domains
1a: SCOP_d1ltad_ (D:)
1b: SCOP_d1ltae_ (E:)
1c: SCOP_d1ltaf_ (F:)
1d: SCOP_d1ltag_ (G:)
1e: SCOP_d1ltah_ (H:)
2a: SCOP_d1lta_1 (A:,C:)
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)
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)
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)
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)
(
)
Protein Domains
(
)
(
)
Organisms
(
)
(
)
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
d1ltad_
D:
1b
d1ltae_
E:
1c
d1ltaf_
F:
1d
d1ltag_
G:
1e
d1ltah_
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
d1lta.1
A:,C:
[
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]
CATH Domains
(3, 7)
Info
all CATH domains
1a: CATH_1ltaA00 (A:1-188)
2a: CATH_1ltaC00 (C:196-240)
3a: CATH_1ltaD00 (D:1-103)
3b: CATH_1ltaE00 (E:1-103)
3c: CATH_1ltaF00 (F:1-103)
3d: CATH_1ltaG00 (G:1-103)
3e: CATH_1ltaH00 (H:1-103)
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)
(
)
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)
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)
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(
)
(
)
Homologous Superfamilies
(
)
(
)
Organisms
(
)
(
)
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
1ltaA00
A:1-188
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
1ltaC00
C:196-240
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
1ltaD00
D:1-103
3b
1ltaE00
E:1-103
3c
1ltaF00
F:1-103
3d
1ltaG00
G:1-103
3e
1ltaH00
H:1-103
[
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Pfam Domains
(2, 7)
Info
all PFAM domains
1a: PFAM_Enterotoxin_a_1ltaC01 (C:196-240)
1b: PFAM_Enterotoxin_a_1ltaC02 (C:196-240)
2a: PFAM_Enterotoxin_b_1ltaH01 (H:1-102)
2b: PFAM_Enterotoxin_b_1ltaH02 (H:1-102)
2c: PFAM_Enterotoxin_b_1ltaH03 (H:1-102)
2d: PFAM_Enterotoxin_b_1ltaH04 (H:1-102)
2e: PFAM_Enterotoxin_b_1ltaH05 (H:1-102)
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Clans
(
)
(
)
Families
(
)
(
)
Organisms
(
)
(
)
Clan
:
ADP-ribosyl
(56)
Family
:
Enterotoxin_a
(14)
Escherichia coli
(8)
1a
Enterotoxin_a-1ltaC01
C:196-240
1b
Enterotoxin_a-1ltaC02
C:196-240
Clan
:
no clan defined [family: Enterotoxin_b]
(23)
Family
:
Enterotoxin_b
(23)
Escherichia coli
(12)
2a
Enterotoxin_b-1ltaH01
H:1-102
2b
Enterotoxin_b-1ltaH02
H:1-102
2c
Enterotoxin_b-1ltaH03
H:1-102
2d
Enterotoxin_b-1ltaH04
H:1-102
2e
Enterotoxin_b-1ltaH05
H:1-102
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Asymmetric Unit 1
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Asym.Unit (134 KB)
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