HSP70 — Solanum lycopersicum

Summary

SOLYC06G005440.1, the tomato HSP70 gene on chromosome 6, encodes a heat shock 70 family chaperone with ATP hydrolase activity and ATP binding, and is associated with protein folding and heat shock protein binding. This gene is associated with diverse biological processes including autophagy in response to ER stress, pigment accumulation, flower formation, strigolactone anabolism, and membrane bending. It has been linked to agronomically important traits such as drought tolerance, photosynthetic rate, chlorophyll content, quantum yield, photochemical quenching, germination rate, flower abortion, and amino acid content. The encoded protein localizes to the ER lumen, ER chaperone complex, chloroplast membrane, cytoplasm, and nucleus. Studies of related genes in other species, including BiP2 and BiP3, further connect this family to protein processing and stress responses.