Anti-TRIM55 antibodies are used in the immunodetection of the protein tripartite motif containing 55. In humans, the canonical protein has a reported length of 548 amino acid residues and a mass of 60.5 kDa. Its subcellular localization is in the nucleus and cytoplasm. Alternative splicing is reported to yield 4 different isoforms for this protein. It is reported to be highly expressed in muscle. TRIM55 is believed to regulate gene expression and protein turnover in muscle cells. Synonyms for this target antigen include muscle specific ring finger 2, muscle-specific RING finger protein 2, ring finger protein 29, and tripartite motif-containing protein 55.