HSP70 — Solanum tuberosum

Summary

PGSC0003DMG400028634, the potato HSP70 gene on chromosome 12, encodes a heat shock 70 family chaperone with ATP hydrolase activity, ATP binding, heat shock protein binding, and protein folding chaperone functions. The product localises to the cytoplasm, nucleus, membrane, tonoplast, chloroplast membrane, ER lumen, and ER chaperone complex. This gene is associated with diverse biological processes including protein folding in the ER, protein metabolism, pigment metabolism, secondary metabolite biosynthesis, the MVA pathway, sterol and amino acid anabolism, response to UV-A and water, and programmed cell death induction. Agronomically, HSP70 is associated with drought tolerance, leaf water potential, water use efficiency, net photosynthetic rate, transpiration rate, stomatal resistance and opening, root length, and tuber quality traits including starch yield, starch content, reducing sugar content, sugar content, and phosphate content. Related genes in other species include BiP3.