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oxygen evolving activity
Term Information
Accession
GO:0010242
Name
oxygen evolving activity
Ontology
molecular_function
Synonyms
photosynthetic water oxidation
Alternate IDs
None
Definition
Catalysis of the reaction: 2 H2O = O2 + 4 H+ + 4 e-. The evolution of oxygen from oxidizing water is carried out by the oxygen evolving complex in photosystem II of plants. P680+, the photochemically oxidized reaction-center chlorophyll of PSII, is a strong biological oxidant. The reduction potential of P680+ is more positive than that of water, and thus it can oxidize water to give O2 and H+ ions. The oxygen escapes as a gas while the H+ ions remain in solution inside the thylakoid vesicle.
Source:
GOC:syr,
PMID:17091926,
PMID:7948862,
GOC:kd
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