Anti-Mcg18 antibodies enable researchers to detect and measure the Mcg18 antigen in biological samples. This target is a reported synonym of the DNAJC4 gene, which encodes DnaJ heat shock protein family (Hsp40) member C4. This protein is known to function in protein folding, among other biological roles. The human version of Mcg18 has a canonical amino acid length of 241 residues and a protein mass of 27.6 kilodaltons. It is reported to be localized in the membrane of cells. Other names for this target antigen include DANJC4 and HSPF2.