Anti-HC/HCC antibodies enable researchers to detect and measure the HC/HCC antigen in biological samples. This target is a reported synonym of the SRRD gene, which encodes SRR1 domain containing. This protein is reported to play a role in the regulation of heme biosynthesis and in the regulation of the expression of core clock genes. The human version of HC/HCC has a canonical amino acid length of 339 residues and a protein mass of 38.6 kilodaltons. It is reported to be localized in the cytoplasm of cells. HC/HCC is a member of the SRR1 protein family.