KMT2D / MLL2 is a SET domain containing protein that catalyses the methylation of lysine 4 on histone 3 (H3K4me) at enhancer regions, which marks active enhancers. KMT2D is frequently mutated in at least 27 different types of cancer, including the non-Hodgkins lymphomas (NHL) follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL). Many of these mutations are predicted to be inactivating, suggesting selective pressures favour loss of KMT2D function. We have generated knock out cell lines to model KMT2D loss of function and, using large scale cell-based screens, to look for synthetic lethal interactions with other loss-of function alterations across the genome.

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