Anti-Calnuc antibodies enable researchers to detect and measure the Calnuc antigen in biological samples. This target is a reported synonym of the NUCB1 gene, which encodes nucleobindin 1. The human version of Calnuc has a canonical amino acid length of 461 residues and a protein mass of 53.9 kilodaltons. It is reported to be localized in the membrane, Golgi, cytoplasm, and is secreted of cells and widely expressed in many tissue types. This target antigen may also be known as NUC.