Crystal structure of the OpcA integral membrane adhesin from Neisseria meningitidis.Prince, S.M., Achtman, M., Derrick, J.P.
(2002) Proc.Natl.Acad.Sci.USA 99: 3417-3421
- PubMed: 11891340
- DOI: 10.1073/pnas.062630899
- Also Cited By: 2VDF
- PubMed Abstract:
- Expression, Refolding and Crystallization of the OpcA Invasin from Neisseria meningitidis
Prince, S.M.,Feron, C.,Janssens, D.,Lobet, Y.,Achtman, M.,Kusecek, B.,Bullough, P.A.,Derrick, J.P.
(2001) Acta Crystallogr.,Sect.D 57: 1164
- Projection Structure of Reconstituted Opc Outer Membrane Protein from Neisseria meningitidis
Collins, R.,Achtman, M.,Ford, R.,Bullough, P.,Derrick, J.
(1999) MOL.MICROBIOL. 32: 217
- Purification and Characterization of Eight Class 5 outer Membrane Protein Variants from a Clone of Neisseria meningitidis Serogroup A
Achtman, M.,Neilbert, M.,Crowe, B.A.,Strittmatter, W.,Kusecek, B.,Weyse, E.,Walsh, M.J.,Slawig, B.,Morelli, G.,Moll, A.,Blake, M.
(1988) J.EXP.MED. 168: 507
- Two-dimensional Structure of the Opc Invasin from Neisseria meningitidis
Merker, P.,Tommassen, J.,Kusacek, B.,Virji, M.,Sesardic, D.,Achtman, M.
(1997) MOL.MICROBIOL. 23: 281
OpcA is an integral outer membrane protein from Neisseria meningitidis, the causative agent of meningococcal meningitis and septicemia. It mediates the adhesion of N. meningitidis to epithelial and endothelial cells by binding to vitronectin and prot ...
OpcA is an integral outer membrane protein from Neisseria meningitidis, the causative agent of meningococcal meningitis and septicemia. It mediates the adhesion of N. meningitidis to epithelial and endothelial cells by binding to vitronectin and proteoglycan cell-surface receptors. Here, we report the determination of the crystal structure of OpcA to 2.0 A resolution. OpcA adopts a 10-stranded beta-barrel structure with extensive loop regions that protrude above the predicted surface of the membrane. The second external loop adopts an unusual conformation, traversing the axis of the beta-barrel and apparently blocking formation of a pore through the membrane. Loops 2, 3, 4, and 5 associate to form one side of a crevice in the external surface of the structure, the other side being formed by loop 1. The crevice is lined by positively charged residues and would form an ideal binding site for proteoglycan polysaccharide. The structure, therefore, suggests a model for how adhesion of this important human pathogen to proteoglycan is mediated at the molecular level.
Department of Biomolecular Sciences, University of Manchester Institute of Science and Technology, Sackville Street, Manchester M60 1QD, United Kingdom.