Encyclopedia > CpG island

Article Content

CpG island

CpG islands are regions of DNA near the promoter of a eukaryotic gene where a large concentration of CpG sites exist. Unlike CpG sites in the coding region of a gene, the CpG sites in the CpG islands are un-methylated. This raises the possibility that methylation of CpG may inhibit the expression of a gene but altering the promoter.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Thomas a Kempis

... at Darmstadt in five volumes. In its teachings he was widely read, and his works abound in Biblical quotations, especially from the New Testament. His life is no ...