Nomura A, Sugizaki K, Yanagisawa H, Okamoto A. Discrimination between 5-hydroxymethylcytosine and 5-methylcytosine by a chemically designed peptide.
Chem Commun (Camb) 2011;
47:8277-9. [PMID:
21695309 DOI:
10.1039/c1cc12131f]
[Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
An artificial phosphopeptide recognized the difference between methylated and hydroxymethylated cytosines in DNA. The Sp1 zinc finger peptide substituted by phosphotyrosine effectively discriminated between 5-methylcytosine, 5-hydroxymethylcytosine ((hm)C) and unmethylated cytosine. The DNA recognition properties of the peptide differ from those of other chemicals that detect (hm)C.
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