RNA polymerase II transcription regulator complex CSL-Notch-Mastermind transcription factor complex CSL-NotchIC-MASTERMIND complex GO:1990433 A DNA-binding transcription factor complex consisting of CSL and mastermind proteins in complex with the cleaved, intracellular domain of Notch. It is required for both repression and activation of Notch target genes. bhm 2014-07-30T14:41:43Z cellular_component