Pheophorbidase
| Pheophorbidase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 3.1.1.82 | ||||||||
| Databases | |||||||||
| BRENDA | enzyme data | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | enzyme entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| Rhea | reactions | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
Pheophorbidase (EC 3.1.1.82, phedase, PPD) is an enzyme with systematic name pheophorbide-a hydrolase.[1] It catalyses the overall reaction:
The enzyme characterised from plants including radish hydrolyses the methyl ester of pheophorbide. This initially gives the corresponding acid, which spontaneously decarboxylates to pyropheophorbide a.[2][3] The reaction is part of chlorophyll degradation during senescence.[4]
References
- ↑ Enzyme 3.1.1.82 at KEGG Pathway Database.
- ↑ Suzuki Y, Doi M, Shioi Y (2002). "Two enzymatic reaction pathways in the formation of pyropheophorbide a". Photosynthesis Research. 74 (2): 225–33. Bibcode:2002PhoRe..74..225S. doi:10.1023/A:1020919929608. PMID 16228561.
- ↑ Suzuki Y, Amano T, Shioi Y (February 2006). "Characterization and cloning of the chlorophyll-degrading enzyme pheophorbidase from cotyledons of radish". Plant Physiology. 140 (2): 716–25. doi:10.1104/pp.105.071290. PMC 1361337. PMID 16384908.
- ↑ Hörtensteiner S (2006). "Chlorophyll degradation during senescence". Annual Review of Plant Biology. 57 (1): 55–77. Bibcode:2006AnRPB..57...55H. doi:10.1146/annurev.arplant.57.032905.105212. PMID 16669755.
External links
- Pheophorbidase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
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