Anti-Tropomodulin 1 antibodies are used in the immunodetection of the protein encoded by the TMOD1 gene. In humans, the canonical protein has a reported length of 359 amino acid residues and a mass of 40.6 kDa. Its subcellular localization is in the cytoplasm. Alternative splicing is reported to yield 2 different isoforms for this protein. It is reported to be highly expressed in the erythrocyte, heart and skeletal muscle. A member of the Tropomodulin protein family, it is known to be involved with muscle contraction. Other names for this target antigen include ETMOD, TMOD, E-Tmod, e-tropomodulin, erythrocyte tropomodulin, and D9S57E.