Jump to content

Pheophorbidase

From Wikipedia, the free encyclopedia
Pheophorbidase
Identifiers
EC no.3.1.1.82
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Search
PMCarticles
PubMedarticles
NCBIproteins

Pheophorbidase (EC 3.1.1.82, phedase, PPD) is an enzyme with systematic name pheophorbide-a hydrolase.[1][2][3] It catalyses the following reaction:

pheophorbide a + H2O pyropheophorbide a + methanol + CO2 (overall reaction)
(1a) pheophorbide a + H2O C-132-carboxypyropheophorbide a + methanol
(1b) C-132-carboxypyropheophorbide a pyropheophorbide a + CO2 (spontaneous)

This enzyme participates in the chlorophyll degradation in higher plants and algae.

References

[edit]
  1. ^ Suzuki Y, Doi M, Shioi Y (2002). "Two enzymatic reaction pathways in the formation of pyropheophorbide a". Photosynthesis Research. 74 (2): 225–33. doi:10.1023/A:1020919929608. PMID 16228561.
  2. ^ 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.
  3. ^ Hörtensteiner S (2006). "Chlorophyll degradation during senescence". Annual Review of Plant Biology. 57: 55–77. doi:10.1146/annurev.arplant.57.032905.105212. PMID 16669755.
[edit]