Anti-DL1 antibodies enable researchers to detect and measure the DL1 antigen in biological samples. This target is a reported synonym of the DLL1 gene, which encodes delta like canonical Notch ligand 1. This protein is known to function in the differentiation of certain cell types, among other biological roles. The human version of DL1 has a canonical amino acid length of 723 residues and a protein mass of 78.1 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cell membrane of cells. Other names for this target antigen include DELTA1 and Delta. ELISA, Western Blot, and Immunohistochemistry are common applications for DL1 antibodies.