Outer membrane protein G (OmpG) is a porin, a channel proteins in the outer membrane of

Gram-negative bacteria Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. They are characterized by their cell envelopes, which are composed of a thin peptidoglycan cell wall ...

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Escherichia coli ''Escherichia coli'' (),Wells, J. C. (2000) Longman Pronunciation Dictionary. Harlow ngland Pearson Education Ltd. also known as ''E. coli'' (), is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus '' Esc ...

'' OmpG forms a 14-stranded beta-barrel and in contrast to most porins, appears to function as a monomer. 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

oligosaccharide An oligosaccharide (/ˌɑlɪgoʊˈsækəˌɹaɪd/; from the Greek ὀλίγος ''olígos'', "a few", and σάκχαρ ''sácchar'', "sugar") is a saccharide polymer containing a small number (typically two to ten) of monosaccharides (simple sug ...

References

Protein domains Protein families Outer membrane proteins {{membrane-protein-stub