CPN60 — Beta vulgaris subsp. vulgaris

Summary

BvCPN60 (BVRB_042320) on sugar beet chromosome 163872 encodes a molecular chaperone GroEL protein belonging to the Cpn60/GroEL family, with ATP-dependent protein folding chaperone activity, ATPase, copper and RNA binding functions. The gene is associated with chaperone-mediated protein complex assembly, protein refolding, mitochondrial biogenesis, group II intron splicing, protein folding, cell death, programmed cell death, and response to heat. It localises to the mitochondrial lumen, chloroplast envelope and stroma, ER, 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 protein content, high temperature and oxidative stress responses, root length, chlorophyll content, plant height, and drought tolerance.