pfam02321: OEP (this model, PSSM-Id:280481 is obsolete and has been replaced by 396757)
Outer membrane efflux protein
The OEP family (Outer membrane efflux protein) form trimeric channels that allow export of a variety of substrates in Gram negative bacteria. Each member of this family is composed of two repeats. The trimeric channel is composed of a 12 stranded all beta sheet barrel that spans the outer membrane, and a long all helical barrel that spans the periplasm.