nitrogen catabolite regulation of transcription from RNA polymerase II promoter krc 2010-10-27T03:29:01Z GO:0001079 regulation of transcription from RNA polymerase II promoter by nitrogen catabolites A transcription regulation process in which the presence of one nitrogen source leads to the modulation of the frequency, rate, or extent of transcription, from an RNA polymerase II promoter, of specific genes involved in the metabolism of other nitrogen sources. biological_process regulation of transcription by RNA polymerase II nitrogen catabolite regulation of transcription