HSP70 — Oryza sativa Indica Group

Summary

BGIOSGA034959 (HSP70) on chromosome 11 of Indica rice encodes an ATP-dependent protein folding chaperone with ATP hydrolase and heat shock protein binding activities, belonging to the Hsp70 family. The gene is associated with protein folding in the ER, the ERAD pathway, the unfolded protein response, auxin transport and signaling, response to heat, stress, and virus, and amino acid membrane transport. Its product localizes to the ER lumen and chaperone complex, cytoplasm, nucleus, chloroplast membrane, tonoplast, and membrane. The gene has been associated with heat tolerance, grain yield, spikelet fertility, spikelet number, plant height, leaf size, and root length. Studies of related genes in other species link the Hsp70 family to similar chaperone functions in the ER.