Anti-heparin cofactor II antibodies enable researchers to detect and measure the heparin cofactor II antigen in biological samples. This target is a reported synonym of the SERPIND1 gene, which encodes serpin family D member 1. This protein is known to function in chemotaxis, among other biological roles. The human version of heparin cofactor II has a canonical amino acid length of 499 residues and a protein mass of 57.1 kilodaltons. heparin cofactor II is a member of the Serpin protein family. Immunohistochemistry is the most common application for the heparin cofactor II antibodies listed below. ELISA and Western Blot are also common applications.