Function and Biology

HEAT-LABILE ENTEROTOXIN (LT-I) COMPLEX WITH T-ANTIGEN

Source organism: Escherichia coli
Biochemical function: toxin activity
Biological process: modulation of process of another organism
Cellular component: extracellular region

GO terms

Sequence families

Pfam Protein families (Pfam)
PF01376
Domain description: Heat-labile enterotoxin beta chain
Occurring in:
  1. Heat-labile enterotoxin B chain
The deposited structure of PDB entry 1lti contains 5 copies of Pfam domain PF01376 (Heat-labile enterotoxin beta chain) in Heat-labile enterotoxin B chain. Showing 1 copy in chain A [auth D].

PF01375
Domain description: Heat-labile enterotoxin alpha chain
Occurring in:
  1. Heat-labile enterotoxin A chain
The deposited structure of PDB entry 1lti contains 1 copy of Pfam domain PF01375 (Heat-labile enterotoxin alpha chain) in Heat-labile enterotoxin A chain. Showing 1 copy in chain F [auth A].

InterPro InterPro annotations
IPR001835
Domain description: Heat-labile enterotoxin, B chain
Occurring in:
  1. Heat-labile enterotoxin B chain
IPR001144
Domain description: Heat-labile enterotoxin, A chain
Occurring in:
  1. Heat-labile enterotoxin A chain
  2. Heat-labile enterotoxin A chain
IPR008992
Domain description: Enterotoxin
Occurring in:
  1. Heat-labile enterotoxin B chain

Structure domains

CATH CATH domains
2.40.50.110
Class: Mainly Beta
Architecture: Beta Barrel
Topology: OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homology: OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Occurring in:
  1. Heat-labile enterotoxin B chain
The deposited structure of PDB entry 1lti contains 5 copies of CATH domain 2.40.50.110 (OB fold (Dihydrolipoamide Acetyltransferase, E2P)) in Heat-labile enterotoxin B chain. Showing 1 copy in chain A [auth D].
1.20.5.240
Class: Mainly Alpha
Architecture: Up-down Bundle
Topology: Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homology: Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Occurring in:
  1. Heat-labile enterotoxin A chain
The deposited structure of PDB entry 1lti contains 1 copy of CATH domain 1.20.5.240 (Single alpha-helices involved in coiled-coils or other helix-helix interfaces) in Heat-labile enterotoxin A chain. Showing 1 copy in chain G [auth C].
3.90.210.10
Class: Alpha Beta
Architecture: Alpha-Beta Complex
Topology: Heat-Labile Enterotoxin; Chain A
Homology: Heat-Labile Enterotoxin, subunit A
Occurring in:
  1. Heat-labile enterotoxin A chain
The deposited structure of PDB entry 1lti contains 1 copy of CATH domain 3.90.210.10 (Heat-Labile Enterotoxin; Chain A) in Heat-labile enterotoxin A chain. Showing 1 copy in chain F [auth A].
SCOP SCOP annotations
50204
Class: All beta proteins
Fold: OB-fold
Superfamily: Bacterial enterotoxins
Occurring in:
  1. Heat-labile enterotoxin B chain
The deposited structure of PDB entry 1lti contains 5 copies of SCOP domain 50204 (Bacterial AB5 toxins, B-subunits) in Heat-labile enterotoxin B chain. Showing 1 copy in chain A [auth D].
56400
Class: Alpha and beta proteins (a+b)
Fold: ADP-ribosylation
Superfamily: ADP-ribosylation
Occurring in:
  1. Heat-labile enterotoxin A chain
  2. Heat-labile enterotoxin A chain
The deposited structure of PDB entry 1lti contains 1 copy of SCOP domain 56400 (ADP-ribosylating toxins) in Heat-labile enterotoxin A chain. Showing 1 copy in chain F [auth A].