Photosystem II extrinsic protein U, chloroplastic
UniProtKB accession: Q9ZQS5
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Go to UniProtKB: Q9ZQS5
UniProtKB description: One of the extrinsic, lumenal subunits of photosystem II (PSII). PSII is a light-driven water plastoquinone oxidoreductase, using light energy to abstract electrons from H(2)O, generating a proton gradient subsequently used for ATP formation. The extrinsic proteins stabilize the structure of photosystem II oxygen-evolving complex (OEC), the ion environment of oxygen evolution and protect the OEC against heat-induced inactivation (PubMed:8534673, PubMed:10381374).
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