HSP70 — Sorghum bicolor

Summary

SORBI_3001G419100, designated HSP70 on sorghum chromosome 1, encodes an ATP-dependent protein folding chaperone belonging to the Hsp70 family, with ATP hydrolase activity and heat shock protein binding capability. The gene is associated with protein folding in the endoplasmic reticulum, the ERAD pathway, the unfolded protein response, protein refolding and breakdown, detoxification, programmed cell death, and responses to heat, stress, and viruses. It has been linked to heat tolerance and photosynthetic rate. The encoded product localises to the ER chaperone complex and lumen, chloroplast membrane, tonoplast, cytoplasm, and nucleus. Studies of related genes in other species connect the family to drought tolerance, leaf relative water content, net photosynthetic rate, stomatal resistance, root and shoot fresh weight, root length, and plant dry weight.