HSP70 — Oryza sativa Indica Group

Summary

BGIOSGA034363 (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 responses to heat, stress, and virus, as well as auxin transport, signaling, and the ERAD pathway and unfolded protein response. It is linked to protein refolding and amino acid membrane transport. Localisation evidence connects the product to the cytoplasm, nucleus, membrane, chloroplast membrane, ER lumen, and ER chaperone complex. The gene has been associated with several agronomically important traits, including heat tolerance, grain yield, spikelet fertility, spikelet number, plant height, leaf size, and root length. Studies of related Hsp70 family members in other species further support the family's role in stress responses and protein homeostasis.