Hypoxia-inducible factor-proline dioxygenase
| Hypoxia-inducible factor-proline dioxygenase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 1.14.11.29 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
Hypoxia-inducible factor-proline dioxygenase (EC 1.14.11.29, HIF hydroxylase) is an enzyme with systematic name hypoxia-inducible factor-L-proline, 2-oxoglutarate:oxygen oxidoreductase (4-hydroxylating).[1][2][3][4][5][6] This enzyme catalyses the following chemical reaction
- hypoxia-inducible factor-L-proline + 2-oxoglutarate + O2 hypoxia-inducible factor-trans-4-hydroxy-L-proline + succinate + CO2
Hypoxia-inducible factor-proline dioxygenase contains iron, and requires ascorbate.
In humans, there are three isoforms of hypoxia-inducible factor-proline dioxygenase. These are PHD1, PHD2 and PHD3. PHD2, in particular, was identified as the most important human oxygen sensors due to its slow reaction with oxygen.[7]
References
- ^ Jaakkola, P.; Mole, D.R.; Tian, Y.M.; Wilson, M.I.; Gielbert, J.; Gaskell, S.J.; Kriegsheim Av; Hebestreit, H.F.; Mukherji, M.; Schofield, C.J.; Maxwell, P.H.; Pugh, C.W.; Ratcliffe, P.J. (2001). "Targeting of HIF-α to the von Hippel-Lindau ubiquitylation complex by O2-regulated prolyl hydroxylation". Science. 292 (5516): 468–472. Bibcode:2001Sci...292..468J. doi:10.1126/science.1059796. PMID 11292861.
- ^ Ivan, M.; Kondo, K.; Yang, H.; Kim, W.; Valiando, J.; Ohh, M.; Salic, A.; Asara, J.M.; Lane, W.S.; Kaelin, W.G. (2001). "HIFα targeted for VHL-mediated destruction by proline hydroxylation: implications for O2 sensing". Science. 292 (5516): 464–468. Bibcode:2001Sci...292..464I. doi:10.1126/science.1059817. PMID 11292862.
- ^ Bruick, R.K.; McKnight, S.L. (2001). "A conserved family of prolyl-4-hydroxylases that modify HIF". Science. 294 (5545): 1337–1340. Bibcode:2001Sci...294.1337B. doi:10.1126/science.1066373. PMID 11598268.
- ^ Epstein, A.C.; Gleadle, J.M.; McNeill, L.A.; Hewitson, K.S.; O'Rourke, J.; Mole, D.R.; Mukherji, M.; Metzen, E.; Wilson, M.I.; Dhanda, A.; Tian, Y.M.; Masson, N.; Hamilton, D.L.; Jaakkola, P.; Barstead, R.; Hodgkin, J.; Maxwell, P.H.; Pugh, C.W.; Schofield, C.J.; Ratcliffe, P.J. (2001). "C. elegans EGL-9 and mammalian homologs define a family of dioxygenases that regulate HIF by prolyl hydroxylation". Cell. 107 (1): 43–54. doi:10.1016/S0092-8674(01)00507-4. PMID 11595184.
- ^ Oehme, F.; Ellinghaus, P.; Kolkhof, P.; Smith, T.J.; Ramakrishnan, S.; Hutter, J.; Schramm, M.; Flamme, I. (2002). "Overexpression of PH-4, a novel putative proline 4-hydroxylase, modulates activity of hypoxia-inducible transcription factors". Biochem. Biophys. Res. Commun. 296 (2): 343–349. doi:10.1016/S0006-291X(02)00862-8. PMID 12163023.
- ^ McNeill, L.A.; Hewitson, K.S.; Gleadle, J.M.; Horsfall, L.E.; Oldham, N.J.; Maxwell, P.H.; Pugh, C.W.; Ratcliffe, P.J.; Schofield, C.J. (2002). "The use of dioxygen by HIF prolyl hydroxylase (PHD1)". Bioorg. Med. Chem. Lett. 12 (12): 1547–1550. doi:10.1016/S0960-894X(02)00219-6. PMID 12039559.
- ^ Berra E, Benizri E, Ginouvès A, Volmat V, Roux D, Pouysségur J (Aug 2003). "HIF prolylhydroxylase 2 is the key oxygen sensor setting low steady-state levels of HIF-1α in normoxia". EMBO J. 22 (16): 4082–4090. doi:10.1093/emboj/cdg392. PMC 175782. PMID 12912907.
External links
- Hypoxia-inducible+factor-proline+dioxygenase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
