HSP70 — Solanum tuberosum

Summary

PGSC0003DMG400024887, designated StHSP70 on potato chromosome 1, encodes a member of the Hsp70 family of molecular chaperones, possessing ATP hydrolase activity and protein-folding chaperone function. The gene is associated with a broad range of biological processes including protein refolding, chlorophyll breakdown, proline and sucrose metabolism, sterol and fatty acid anabolism, and the downregulation of ethylene-mediated signaling. It has been linked to traits such as plant fresh weight, root dry weight, net photosynthetic rate, stomatal resistance, leaf senescence, flowering time, and abscisic acid sensitivity. Localisation evidence connects the product to the ER lumen, plastid stroma, thylakoid, and chloroplast envelope. Related genes in other species link the family to chloroplast development, thermotolerance, osmotic stress tolerance, and protein import into chloroplasts.