Anti-C21orf55 antibodies enable researchers to detect and measure the C21orf55 antigen in biological samples. This target is a reported synonym of the DNAJC28 gene, which encodes DnaJ heat shock protein family (Hsp40) member C28. This protein is suspected to have a role in protein folding or as a chaperone. The human version of C21orf55 has a canonical amino acid length of 388 residues and a protein mass of 45.8 kilodaltons. It is reported to be widely expressed in many tissue types. This target antigen may also be known as C21orf78.