binds tumor promoters such as tetradecanoylphorbol-13 acetate, teleocidins, aplysiatoxin & thapsigargin; MW 70 kDa existing in cytosolic fraction as a complex with the 90 kDa heat-shock protein; natural ligand is yakkasterone; amino acid sequence has been determined
Source
Biochem Biophys Res Commun 1993 Aug 16;194(3):1529-35