HSP70 — Solanum tuberosum

Summary

PGSC0003DMG400019208, symbol HSP70 on potato chromosome 10, 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 folding in the endoplasmic reticulum, the ERAD pathway, the unfolded protein response, and protein refolding. It is associated with responses to abiotic stimulus, cold acclimation, stress, and virus infection, as well as virus-induced post-transcriptional gene silencing. Associations also include regulation of hormone levels, detoxification, sterol and fatty acid anabolism, sucrose metabolism, nucleosome assembly, and chlorophyll fluorescence. The product localises to the ER lumen and chaperone complex, chloroplast membrane, tonoplast, cytoplasm, and nucleus. Trait associations include proline content, net photosynthetic rate, water use efficiency, and photosynthetic rate. Studies of related genes in other species link the family to endoplasmic reticulum stress responses.