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| = CpG site =
| | See [[CpG_Islands|CpG Islands]] |
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| The CpG sites or CG sites are regions of [[DNA|DNA]] where a [[ cytosine nucleotide |cytosine nucleotide ]]is followed by a guanine nucleotide in the linear [[sequence|sequence]] of bases along its 5' → 3' direction. CpG is shorthand for 5'—C—phosphate—G—3' , that is, cytosine and guanine separated by only one phosphate; phosphate links any two nucleosides together in DNA. <ref>Jabbari K, Bernardi G (May 2004). "Cytosine methylation and CpG, TpG (CpA) and TpA frequencies". Gene. 333: 143–9. PMID 15177689. doi:10.1016/j.gene.2004.02.043.</ref>The CpG notation is used to distinguish this single-stranded linear sequence from the CG base-pairing of cytosine and guanine for double-stranded sequences.
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| === Reference ===
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| <references />
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Latest revision as of 11:55, 24 October 2018