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The Inverse autotransporter (Intimin/Invasin) Family [Function: Adhesion] Seed alignment | Full alignment | Pfam page | TC-DB page

This family consists of several adhesins found mainly in enterohaemorrhagic and enteropathogenic Escherichia coli (EHEC and EPEC respectively), termed intimins, and invasins found in Yersinia pseudotuberculosis. Intimins and Invasins, share homology in their N-terminal (500 amino acids in length) segment that forms a 12-stranded ß-barrel, anchoring the protein to the outer membrane. At the C-terminal, these proteins have some Ig-like domains and a C-type lectin domain. Invasin binds to Integrin, whereas Intimin binds to the Translocated Intimin Receptor (Tir). Homologs are also found in other pathogenic bacteria, such as Citrobacter, Shigella, Salmonella, Bordetella and Campylobacter.


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Literature references


Self-association of EPEC intimin mediated by the beta-barrel-containing anchor domain: a role in clustering of the Tir receptor
Mol Microbiol. 2004 Jan;51(1):73-87. doi: 10.1046/j.1365-2958.2003.03830.x.
PMID: 14651612

Crystal structure of enteropathogenic Escherichia coli intimin-receptor complex
Nature. 2000 Jun 29;405(6790):1073-7. doi: 10.1038/35016618.
PMID: 10890451

Proteins in this family with 3D-structure
View Entry
Description
Organism
Length
# strands
Nucleoside-specific channel-forming protein Tsx
Escherichia coli O157:H7
934
12
Ferric-anguibactin receptor FatA
Yersinia pseudotuberculosis serotype I (strain IP32953)
985
12


Elixir UTH dib compgen