obsolete regulation of transcription from RNA polymerase II promoter by a nonfermentable carbon source https://github.com/geneontology/go-ontology/issues/21442 true biological_process The reason for obsoletion is that this represents a GO-CAM. 2012-01-23T11:13:06Z GO:0061413 OBSOLETE. A transcription regulation process in which the presence of a nonfermentable carbon 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 carbon sources. dph