Anti-CD339 antibodies enable researchers to detect and measure the CD339 antigen in biological samples. This target is a reported synonym of the JAG1 gene, which encodes jagged canonical Notch ligand 1. This protein is known to function in angiogenesis, among other biological roles. The human version of CD339 has a canonical amino acid length of 1218 residues and a protein mass of 133.8 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cell membrane of cells and widely expressed in many tissue types. Other names for this target antigen include AGS, AGS1, and AHD. ELISA, Western Blot, and Immunohistochemistry are common applications for CD339 antibodies.