Anti-CBFA2/RUNX1 partner transcriptional co-repressor 2 antibodies are used for the immunodetection of the protein encoded by the CBFA2T2 gene. In humans, the canonical protein has a reported length of 604 amino acid residues and a mass of 67.1 kDa. Its subcellular localization is in the nucleus. Alternative splicing is reported to yield 5 different isoforms for this protein. It is widely expressed across many tissue types. A member of the CBFA2T protein family, it is reported to be a transcriptional corepressor, which facilitates transcriptional repression via its association with DNA-binding transcription factors and recruitment of other corepressors and histone-modifying enzymes. Other names for this target antigen include MTGR1, ZMYND3, p85, protein CBFA2T2, CBFA2/RUNX1 translocation partner 2, and EHT. Gene orthologs have been identified in the mouse, rat, bovine, frog, chimpanzee and chicken species.