psbA — Zea mays

Summary

ZM00001EB442710, the maize psbA gene on chromosome scaf_621, encodes a protein of the PSII_D1 family, a core component of the photosynthetic reaction centre. This protein possesses oxidoreductase activity, oxygen-evolving activity, chlorophyll binding, electron transfer activity, and iron binding, and is localised to the photosystem II complex in the chloroplast thylakoid membrane. The gene is associated with C4 photosynthesis, light absorption, plastid gene expression, cellular respiration, and membrane biogenesis. It has been linked to traits including net photosynthetic rate, quantum yield, chlorophyll content, water use efficiency, drought tolerance, leaf colour and curling, carbohydrate and protein content, respiration rate, heterosis, and cytoplasmic male sterility. Related genes in other species have been linked to grain protein content.