HSP70 — Camelina sativa

Summary

CSA02G037290 (HSP70, CsHSC70-7) on Camelina sativa chromosome 2 encodes a member of the Hsp70 family, a protein folding chaperone with ATP hydrolase activity, heat shock protein binding, and ethene binding. It is associated with protein folding in the endoplasmic reticulum, the ER unfolded protein response, ERAD pathway, protein-chloroplast targeting, sumoylation, MAPK cascade, brassinosteroid-mediated signalling, and downregulation of ethylene signalling. The gene is linked to responses to heat and salt stress, hypoxia, pollen germination and development, embryo development, and seed growth. It localises to the ER lumen and chaperone complex, plastid stroma, thylakoid, chloroplast envelope, and apoplast. Associations with leaf senescence, stomatal resistance and opening, flowering time, root morphology, thermotolerance, osmotic stress tolerance, and ethylene sensitivity have been noted. Related genes in other species link the family to chloroplast development, thermotolerance, and ROS scavenging.