Anti-MADR1 antibodies enable researchers to detect and measure the MADR1 antigen in biological samples. This target is a reported synonym of the SMAD1 gene, which encodes SMAD family member 1. This protein is known to function in the morphogenesis of anatomical structure and bone development, among other biological roles. The human version of MADR1 has a canonical amino acid length of 465 residues and a protein mass of 52.3 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the nucleus and cytoplasm of cells and widely expressed in many tissue types. Other names for this target antigen include BSP-1, BSP1, and JV4-1. Western Blot is the most common application for the MADR1 antibodies listed below. ELISA and Immunohistochemistry are also common applications.