| 别名 |
ComC, HofD, More, PibD, PilD, PilD-like protein, Pilin leader peptidase, PilU, preflagellin peptidase, Prepilin peptidase, prepilin peptidase PilD/XcpA, proepilin peptidase PulO, proteinase, pilin precursor, PulO, PulO prepilin peptidase, TadV protein, TcpJ, TFPP, type 4 prepilin peptidase, type 4 prepilin-like proteins leader peptide-processing enzyme, type IV prepilin peptidase, type IV prepilin-like peptidase, VcpD, XcpA, XpsO |
| Comments |
Many species of bacteria carry pili on their cell surfaces. These are virulence determinants in pathogenic strains, and are assembled biosynthetically from type IV prepilin subunits. Before assembly, the prepilin molecules require proteolytic processing, which is done by the prepilin peptidase. Prepilin peptidase and its homologues play a central role not only in type IV pilus biogenesis but also in transport of macromolecules across cell membranes. Although both peptide-bond hydrolysis and N-methylation are catalysed by the same molecule, the methylation can be inhibited without affecting peptidase activity, and it is believed that the enzyme has two separate catalytic sites. Type example of peptidase family?A24. |
