HIV-1 protease
| HIV-1 Protease (Retropepsin) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
HIV-1 protease dimer in white and grey, with peptide substrate in black and active site aspartate side chains in red. (PDB: 1KJF) | |||||||||
| Identifiers | |||||||||
| EC no. | 3.4.23.16 | ||||||||
| CAS no. | 144114-21-6 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
HIV-1 protease or PR is a retroviral aspartyl protease (retropepsin), an enzyme involved with peptide bond hydrolysis in retroviruses, that is essential for the life-cycle of HIV, the retrovirus that causes AIDS. HIV-1 PR cleaves newly synthesized polyproteins (namely, Gag and Gag-Pol) at nine cleavage sites to create the mature protein components of an HIV virion, the infectious form of a virus outside of the host cell. Without effective HIV-1 PR, HIV virions remain uninfectious.