NCIt definition : A fusion protein encoded by the MLL/ARHGEF12 fusion gene. This protein is comprised
of the N-terminal half of the histone-lysine N-methyltransferase MLL protein, including
the AT hook DNA binding domain and the DNA methyltransferase domain, fused to the
C-terminal RGS-like domain of the Rho guanine nucleotide exchange factor 12 protein.;