HSP70 — Asparagus officinalis

Summary

A4U43_C06F6540, designated AoHSP70, encodes a heat shock 70 kDa protein family member with ATP hydrolase activity, ATP binding, heat shock protein binding, and protein folding chaperone functions. In asparagus, this gene is associated with response to stress, heat, and virus, as well as protein refolding, the ERAD pathway, the unfolded protein response, steroidogenesis, progesterone anabolism, lipid metabolism, and homeostasis. It is associated with thermotolerance, heat shock, wound, abiotic stress, and radiation responses, and with photosynthetic rate. The encoded protein localises to the ER lumen and chaperone complex, chloroplast membrane, secretory vesicle, plant-type vacuole, Golgi complex, and membrane. Studies of related genes in other species connect the HSP70 family to heat, drought, and salt stress tolerance, and to traits including seed weight, germination rate, plant height, chlorophyll content, and fruit size.