HSP70 — Oryza sativa Indica Group

Summary

BGIOSGA004771 (symbol HSP70, also known as OiMED37) on chromosome 1 of Indica rice encodes an ATP-dependent protein folding chaperone with ATP hydrolase activity and heat shock protein binding capability, belonging to the Hsp70 family. This gene is associated with protein folding in the ER, the ERAD pathway, the ER unfolded protein response, protein refolding, auxin transport and signaling, basipetal auxin polar transport, amino acid membrane transport, response to heat, stress, and virus, pollen germination, pollen tube growth, and pollen development. It localizes to the ER chaperone complex, ER lumen, chloroplast membrane, cytoplasm, nucleus, and axonemal central pair projection. The gene is linked to agronomic traits including grain yield per plant, spikelet fertility, spikelet number, plant height, leaf size, root length, relative root length, and heat tolerance. Related genes in other species connect the family to similar chaperone functions.