CPN60 — Beta vulgaris subsp. vulgaris

Summary

BvCPN60 (BVRB_7G170640) on sugar beet chromosome 7 encodes a chaperonin of the Cpn60/GroEL family, with ATP-dependent protein folding chaperone activity, ATPase, RNA-binding and copper-binding activities. The gene is associated with mitochondrial biogenesis, chaperone-mediated protein complex assembly, protein refolding, group II intron splicing, response to heat, cell death and programmed cell death. It localises to the mitochondrial lumen, chloroplast stroma and envelope, endoplasmic reticulum, plant-type vacuole, cytosol and cytosolic ribosome. BvCPN60 is associated with cytoplasmic male sterility, heat stress tolerance and plant stature. Studies of related genes in other species link the family to traits including protein content, chlorophyll content, root length, plant height, drought tolerance and oxidative stress response.