psbA — Pisum sativum

Summary

PSAT4G065320 (psbA) on chromosome 4LG4 encodes a protein with the D1/D2 and Photo_RC_L/M domains, a core component of the photosynthetic reaction centre. The product possesses oxidoreductase activity acting on diphenols with oxygen as acceptor, oxygen-evolving activity, chlorophyll binding, electron transfer activity and iron binding. It is localised to the photosystem II complex in the chloroplast thylakoid membrane. The gene is associated with photosynthetic electron transport in photosystem II, thylakoid membrane organisation, photoprotection, plastid gene expression and transcription, chloroplast movement, and response to herbicide. It has also been connected to carotenoid and flavonoid anabolism, protein synthesis and breakdown, homeostasis, and membrane organisation. Related genes in other species link the family to the enzyme class 1.10.3.9.