Anti-plastin 3 antibodies are used in the immunodetection of the protein encoded by the PLS3 gene. In humans, the canonical protein has a reported length of 630 amino acid residues and a mass of 70.8 kDa. Its subcellular localization is in the cytoplasm. Alternative splicing is reported to yield 3 different isoforms for this protein. It is reported to be expressed in a variety of organs, including muscle, brain, uterus and esophagus. The plastin 3 protein is involved with bone development, among other functions. Other names for this target antigen include T-plastin, T fimbrin, T plastin, and BMND18.