HSP70 — Solanum lycopersicum

Summary

SOLYC04G011450.2, the tomato HSP70 gene on chromosome 4, encodes a heat shock protein 70 family member with a C-terminal substrate-binding domain. The product possesses ATP hydrolase activity, ATP binding, heat shock protein binding, and is annotated as a protein folding chaperone. 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 several agronomically important traits such as drought tolerance, photosynthetic rate, chlorophyll content, quantum yield, photochemical quenching, germination rate, flower abortion, and amino acid content. The protein localizes to the cytoplasm and chloroplast membrane. Related genes in other species further connect this family to stress responses and protein homeostasis.