Photosystem II reaction center protein I

UniProtKB accession:  Q54697

Grouped By:  Matching UniProtKB accession

UniProtKB description:  One of the components of the core complex of photosystem II (PSII) (PubMed:8544827). Not essential for assembly, it probably binds to D1 early in the assembly of PSII and stabilizes binding of CP43 (psbC) to the reaction center (PubMed:17921338). 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.