RBPJ is a transcriptional regulator important in the Notch signaling
pathway. in Notch signaling, a signaling pathway involved in cell-cell
communication that regulates a broad spectrum of cell-fate
determinations. RBPJ acts as a transcriptional repressor when it is not
associated with Notch proteins. It is specifically binds to the
immunoglobulin kappa-type J segment recombination signal sequence.