CpGアイランド
↑ Fatemi, M; Pao, MM, Jeong, S, Gal-Yam, EN, Egger, G, Weisenberger, DJ, Jones, PA. (November 2005). “Footprinting of mammalian promoters: use of a CpG DNA methyltransferase revealing nucleosome positions at a single molecule level”. Nucleic Acids Res 33 (20). PMID 16314307. http://www.pubmedcentral.gov/articlerender.fcgi?tool=pubmed&pubmedid=16314307.
↑ Gardiner-Garden M, Frommer M (July 1987). “CpG islands in vertebrate genomes”. Journal of molecular biology 196 (2): 261–82. PMID 3656447. http://www.pubmedcentral.gov/articlerender.fcgi?tool=pubmed&pubmedid=3656447.