3.4.21.-

Peptidase/PDZ domain protein
Signal peptide peptidase SppA, 36K type
UmuD protein
Carboxyl-terminal protease
ATP-dependent protease, putative
Rhomboid family protein
component of DNA polymerase V, subunit D (RefSeq)
periplasmic serine protease (DegP) (RefSeq)
Serine protease DO-like protein (RefSeq)
protease SohB, belong to MEROPS peptidase family S49 (protease IV family, clan S-) (RefSeq)