NCIt definition : A fusion gene that results from a chromosomal translocation, t(14;20)(q32;q12), which
fuses transcriptional enhancers from the immunoglobulin heavy chain (IGH) gene locus
with the promoter region of the MAFB gene. This rearrangement is associated with multiple
myeloma, monoclonal gammopathy of undetermined significance (MGUS), smoldering myeloma,
plasma cell leukemia and plasmacytoma.;
NCIt note : This fusion results in aberrant expression of the transcription factor MafB protein.;