| Tissue kallikrein | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 3.4.21.35 | ||||||||
| CAS no. | 389069-73-2 | ||||||||
| Databases | |||||||||
| BRENDA | enzyme data | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | enzyme entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| Rhea | reactions | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
Renal tissue kallikrein (EC 3.4.21.35, glandular kallikrein, pancreatic kallikrein, submandibular kallikrein, submaxillary kallikrein, kidney kallikrein, urinary kallikrein, kallikrein, salivary kallikrein, kininogenin, kininogenase, callicrein, glumorin, padreatin, padutin, kallidinogenase, bradykininogenase, depot-padutin, urokallikrein, dilminal D, onokrein P) is an enzyme.[excessive citations]
Renal tissue kallikrein is formed from kidney tissue prokallikrein by activation with the enzyme trypsin. It catalyses the chemical reaction causing preferential cleavage of Arg- bonds in small molecule substrates, acting to highly selectively release kallidin (lysyl-bradykinin, a bioactive kinin) from kininogen (a kinin protein precursor).
In humans, there are two reported isozymes: kallikrein-1 and kallikrein-2.