1F00

CRYSTAL STRUCTURE OF C-TERMINAL 282-RESIDUE FRAGMENT OF ENTEROPATHOGENIC E. COLI INTIMIN

Summary for 1F00

• Entry DOI: 10.2210/pdb1f00/pdb
• Related: 1CWV 1F02 1INM
• Descriptor: INTIMIN (2 entities in total)
• Functional Keywords: immunoglobulin-like fold, c-type lectin-like fold, cell adhesion
• Biological source: Escherichia coli
• Cellular location: Cell outer membrane; Single-pass membrane protein: P19809
• Total number of polymer chains: 1
• Total formula weight: 30084.53

Authors

Luo, Y.,Frey, E.A.,Pfuetzner, R.A.,Creagh, A.L.,Knoechel, D.G.,Haynes, C.A.,Finlay, B.B.,Strynadka, N.C.J. (deposition date: 2000-05-12, release date: 2000-07-12, Last modification date: 2024-02-07)

Primary citation

Luo, Y.,Frey, E.A.,Pfuetzner, R.A.,Creagh, A.L.,Knoechel, D.G.,Haynes, C.A.,Finlay, B.B.,Strynadka, N.C.
Crystal structure of enteropathogenic Escherichia coli intimin-receptor complex.
Nature, 405:1073-1077, 2000

PubMed Abstract: Intimin and its translocated intimin receptor (Tir) are bacterial proteins that mediate adhesion between mammalian cells and attaching and effacing (A/E) pathogens. Enteropathogenic Escherichia coli (EPEC) causes significant paediatric morbidity and mortality world-wide. A related A/E pathogen, enterohaemorrhagic E. coli (EHEC; O157:H7) is one of the most important food-borne pathogens in North America, Europe and Japan. A unique and essential feature of A/E bacterial pathogens is the formation of actin-rich pedestals beneath the intimately adherent bacteria and localized destruction of the intestinal brush border. The bacterial outer membrane adhesin, intimin, is necessary for the production of the A/E lesion and diarrhoea. The A/E bacteria translocate their own receptor for intimin, Tir, into the membrane of mammalian cells using the type III secretion system. The translocated Tir triggers additional host signalling events and actin nucleation, which are essential for lesion formation. Here we describe the the crystal structures of an EPEC intimin carboxy-terminal fragment alone and in complex with the EPEC Tir intimin-binding domain, giving insight into the molecular mechanisms of adhesion of A/E pathogens.

PubMed: 10890451
DOI: 10.1038/35016618

Experimental method

X-RAY DIFFRACTION (1.9 Å)