Characterization of a new ARID family transcription factor (Brightlike/ARID3C) that co-activates Bright/ARID3A-mediated immunoglobulin gene transcription

► We characterized a new transcription factor, Brightlike/ARID3C. ► Two Brightlike isoforms display different functional and localization properties. ► Brightlike stimulates immunoglobulin heavy chain transcription of Bright/ARID3A.