1o6t
From Proteopedia
INTERNALIN (INLA,LISTERIA MONOCYTOGENES)- FUNCTIONAL DOMAIN,UNCOMPLEXED
Overview
Listeria monocytogenes, a food-borne bacterial pathogen, enters mammalian cells by inducing its own phagocytosis. The listerial protein internalin (InlA) mediates bacterial adhesion and invasion of epithelial cells in the human intestine through specific interaction with its host cell receptor E-cadherin. We present the crystal structures of the functional domain of InlA alone and in a complex with the extracellular, N-terminal domain of human E-cadherin (hEC1). The leucine rich repeat (LRR) domain of InlA surrounds and specifically recognizes hEC1. Individual interactions were probed by mutagenesis and analytical ultracentrifugation. These include Pro16 of hEC1, a major determinant for human susceptibility to L. monocytogenes infection that is essential for intermolecular recognition. Our studies reveal the structural basis for host tro-pism of this bacterium and the molecular deception L. monocytogenes employs to exploit the E-cadherin system.
About this Structure
1O6T is a Single protein structure of sequence from Listeria monocytogenes. Full crystallographic information is available from OCA.
Reference
Structure of internalin, a major invasion protein of Listeria monocytogenes, in complex with its human receptor E-cadherin., Schubert WD, Urbanke C, Ziehm T, Beier V, Machner MP, Domann E, Wehland J, Chakraborty T, Heinz DW, Cell. 2002 Dec 13;111(6):825-36. PMID:12526809 Page seeded by OCA on Sat May 3 03:27:13 2008
