HSP70 — Sorghum bicolor

Summary

SORBI_3001G420100, symbol HSP70 and also known as SbHSP71.1, encodes a heat shock protein 70 family member on sorghum chromosome 1. The product is an ATP-dependent protein folding chaperone with ATP hydrolase activity and heat shock protein binding capability. This gene is associated with protein refolding, the ERAD pathway, the unfolded protein response, detoxification, programmed cell death, and responses to heat, stress, and virus. It is associated with heat tolerance. The protein localises to the cytoplasm, nucleus, membrane, chloroplast membrane, ER lumen, and ER chaperone complex. Studies of the rice relative OsHSP71.1 link the family to salt stress response and ABA response, while related genes in other species are linked to drought tolerance, spikelet number, anthesis time, and abscisic acid sensitivity.