Immunogen sequence: AAAAALHPAL GAYEQAAGYP FSAGLPPAAS CPEKCALFNS VSSSLCKQCT E Highest antigen sequence identity to the following orthologs: Mouse - 100%, Rat - 100%. BHLHB5 inhibits DNA binding of TCF3/E47 homodimers and TCF3 (E47)/NEUROD1 heterodimers an