Anti-CRIg antibodies enable researchers to detect and measure the CRIg antigen in biological samples. This target is a reported synonym of the VSIG4 gene, which encodes V-set and immunoglobulin domain containing 4. The human version of CRIg has a canonical amino acid length of 399 residues and a protein mass of 44 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the membrane of cells and notably expressed in the testis, skin, placenta, and lung. This target antigen may also be known as Z39IG. Indicated applications for CRIg antibodies listed below include ELISA and Western Blot.