Anti-transcription activation suppressor family member 2 antibodies are used for the immunodetection of the protein encoded by the TASOR2 gene. In humans, the canonical protein has a reported length of 2430 amino acid residues and a mass of 268.8 kDa. Alternative splicing is reported to yield 2 different isoforms for this protein. It is a member of the TASOR protein family. Other names for this target antigen include FAM208B, bA318E3.2, protein TASOR 2, family with sequence similarity 208 member B, protein FAM208B, and C10orf18. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.