HSP70 — Solanum lycopersicum

Summary

SOLYC07G005820.3 (HSP70) on tomato chromosome 7 encodes a heat shock 70 family chaperone with ATP hydrolase activity, ATP binding, and heat shock protein binding functions. The gene is associated with protein denaturation and autophagy in response to ER stress, as well as pigment accumulation, flower formation, strigolactone anabolism, and differential growth. It localises to the ER lumen, ER chaperone complex, chloroplast membrane, tonoplast, cytoplasm, and nucleus. Associations with agronomically relevant traits include drought tolerance, photosynthetic rate, chlorophyll content, quantum yield, photochemical quenching, germination rate, flower abortion, and amino acid content. Studies of related genes in other species link the family to similar chaperone and stress-response functions.