Outer membrane porin D

Outer membrane porin D is a protein family containing bacterial outer membrane porins which are involved in transport of cationic amino acids, peptides, antibiotics and other compounds.

OprD
Identifiers
Symbol	OprD
Pfam	PF03573
Pfam clan	CL0193
InterPro	IPR005318
MEROPS	S43
TCDB	1.B.25
OPM superfamily	182
OPM protein	2odj
Available protein structures: Pfam   structures / ECOD   PDB RCSB PDB; PDBe; PDBj PDBsum structure summary

It was also described as having some serine protease activity.^[1] However many of these proteins are not peptidases and are classified as non-peptidase homologues as they either have been found experimentally to be without peptidase activity, or lack amino acid residues that are believed to be essential for the catalytic activity of peptidases in the S43 family.