Outer membrane protein G

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Outer membrane protein G (OmpG)
Symbol Porin_OmpG
Pfam PF09381
SCOP 2iwv
TCDB 1.B.21
OPM superfamily 181
OPM protein 2iwv

Outer membrane protein G (OmpG) is a porin, a channel proteins in the outer membrane of Gram-negative bacteria.

Escherichia coli OmpG forms a 14-stranded beta-barrel and in contrast to most porins, appears to function as a monomer.[1] The central pore of OmpG is wider than other E. coli porins and it is speculated that it may form a non-specific channel for the transport of larger oligosaccharides.[1]


  1. ^ a b Subbarao GV, van den Berg B (July 2006). "Crystal structure of the monomeric porin OmpG". J. Mol. Biol. 360 (4): 750–9. doi:10.1016/j.jmb.2006.05.045. PMID 16797588. 

This article incorporates text from the public domain Pfam and InterPro [1]