Source:http://linkedlifedata.com/resource/umls/id/C1158773
MSH: The inactivation or blocking of alternate carbon sources or their genes in favor the preferred carbon source.,GO: A transcription regulation process in which the presence of one carbon source leads to a decrease in the frequency, rate, or extent of transcription of specific genes involved in the metabolism of other carbon sources. Carbon catabolite repression is a mechanism of genetic regulation which the accumulation of catabolites of one substance in the cell represses the formation of enzymes that contribute to the catabolism of other substances. [GOC:mah, ISBN:0198506732, PMID:11018147, PMID:18359269, PMID:9618445]