Anti-LDS1 antibodies enable researchers to detect and measure the LDS1 antigen in biological samples. This target is a reported synonym of the TGFBR1 gene, which encodes transforming growth factor beta receptor 1. This protein is known to function in the apoptotic pathway, among other biological roles. The human version of LDS1 has a canonical amino acid length of 503 residues and a protein mass of 56 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the cell membrane of cells. LDS1 is a member of the TKL Ser/Thr protein kinase protein family.