Pheophorbidase

Pheophorbidase (, phedase, PPD) is an enzyme with systematic name pheophorbide-a hydrolase.  This enzyme catalyses the following chemical 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. 

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Category:EC 3.1.1