Tags: Protein.
Calumenin is a protein that in humans is encoded by the CALU gene.Calumenin (CALU) is a calcium-binding protein localized in the endoplasmic reticulum (ER) and is involved in such ER functions as protein folding and sorting. Calumenin is a member of the EF-hand superfamily in the ER and Golgi apparatus named CERC. CERC is an acronym for its family members Cab-45 reticulocalbin Erc-55 (RCN2) and calumenin.