Anti-PBX homeobox 1 antibodies are used for the immunodetection of the protein encoded by the PBX1 gene. In humans, the canonical protein has a reported length of 430 amino acid residues and a mass of 46.6 kDa. Its subcellular localization is in the nucleus. Alternative splicing is reported to yield 3 different isoforms for this protein. It is reported to be expressed in the kidney. A member of the TALE/PBX homeobox protein family, it is known to be a transcription factor which binds the DNA sequence 5'-TGATTGAT-3' as part of a heterodimer with HOX proteins such as HOXA1, HOXA5, HOXB7 and HOXB8. Other names for this target antigen include pre-B-cell leukemia transcription factor 1, homeobox protein PBX1, homeobox protein PRL, pre-B-cell leukemia homeobox 1, and CAKUHED. Gene orthologs have been identified in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of PBX homeobox 1 antibodies have been mentioned in research publications and have associated citations. Flow Cytometry, Western Blot, Immunocytochemistry, Immunofluorescence, and Immunohistochemistry are common applications for these antibodies.