Fusion protein amino acids 116-206 (C-terminus) of human Mad3 (also known as Max-interacting transcriptional repressor, Max-associated protein 3, MAX dimerization protein 3, Myx and
Mxd3, accession number Q9BW11) Mouse: 82% identity (75/91 amino acids identical) Rat: 78% identity (71/91 amino acids identical) ~50% identity with Mxi1