ATPD — Sorghum bicolor

Summary

SORBI_3004G235200 (symbol ATPD) on sorghum chromosome 4 encodes a protein with ATP synthase delta subunit domains and proton-transporting ATP synthase activity, rotational mechanism. The gene product also exhibits mRNA and protein binding activities. ATPD is associated with oxidative phosphorylation and proton motive force-driven ATP synthesis, as well as photosynthetic electron transport in both photosystem I and II. It is linked to responses to water, salt, and cold, and to sulfur, sucrose, lipid, and protein metabolism. The protein localizes to the chloroplast thylakoid membrane, mitochondrial inner membrane, stromule, and cytosol. ATPD is associated with sugar content. Studies of related genes in other species connect the family to grain weight, starch and protein content, chlorophyll content, and photochemical quenching.