HSP70 — Beta vulgaris subsp. vulgaris

Summary

BvHSP70 (BVRB_6G143380) on sugar beet chromosome 6 encodes a member of the Hsp70 family of molecular chaperones, possessing ATP hydrolase activity, heat shock protein binding, and protein folding chaperone functions, along with annotated activities including ethene binding, histidine kinase activity, and SUMO transferase activity. The gene is associated with protein folding in the endoplasmic reticulum, the ERAD pathway, the unfolded protein response, sumoylation, cytoskeleton organization, iron-sulfur cluster assembly, glycan biosynthesis, detoxification, immune response, pollen germination, and cellular response to hypoxia. It localizes to the ER lumen, plastid stroma, thylakoid, chloroplast envelope, and apoplast. Associations with agronomic traits include photosynthetic rate, stomatal resistance, leaf senescence, flowering time, seed growth and development, root morphology, zinc concentration, and abscisic acid sensitivity. Phenotypic links include thermotolerance, osmotic stress tolerance, chloroplast development, and ROS scavenging.