Anti-HLM antibodies enable researchers to detect and measure the HLM antigen in biological samples. This target is a reported synonym of the OSBP2 gene, which encodes oxysterol binding protein 2. This protein is known to function in spermatid development, among other biological roles. The human version of HLM has a canonical amino acid length of 916 residues and a protein mass of 101.3 kilodaltons, although 6 isoforms have been identified. It is reported to be localized in the membrane of cells. This target antigen may also be known as ORP-4. Indicated applications for HLM antibodies listed below include ELISA.