Anti-Fbx40 antibodies enable researchers to detect and measure the Fbx40 antigen in biological samples. This target is a reported synonym of the FBXO40 gene, which encodes F-box protein 40. This protein is known to function in muscle cell differentiation, among other biological roles. The human version of Fbx40 has a canonical amino acid length of 709 residues and a protein mass of 79.8 kilodaltons. It is reported to be localized in the cytoplasm of cells.