Photosystem II reaction center protein I

UniProtKB accession:  Q8DJZ6

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UniProtKB description:  One of the components of the core complex of photosystem II (PSII). May be required for formation of PSII dimers but not their subsequent stability (PubMed:21195048). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation.