Expression of outer membrane protein e of escherichia coli K12 by phosphate limitation

Abstract

Escherichia coli K12 contains several so-called major outer membrane proteins, the designation of which was different in various laboratories but it is now agreed that the proteins will be named according to the designation of their structural gene. The products of the ompC (min 48) and ompF (min 21) genes, formerly designated as c and b in our laboratory, are outer membrane proteins which function as aqueous pores through which many nutrients enter the cell via a diffusion-like process. Mutants which lack both the ompC and ompF products are sensitive to 3% sodium dodecyl sulphate (SDS