Interacts with histone H3; interaction is necessary for MLLT6 binding to nucleosomes; interaction is inhibited by histone H3 'Lys-27' methylations (H3K27me1, H3K27me2 and H3K27me3). A chromosomal aberration involving MLLT6 is associated with acute leukemias. Translocation t(11;17)(q23;q21) with KMT2A/MLL1. The result is a rogue activator protein. Truncated N-terminus. Truncated N-terminus.