Method of identifying cytosine methylation patterns in genomic DNA samples

作者: Alexander Olek

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摘要: The invention relates to a method of identifying cytosine methylation patterns in genomic DNA samples. inventive comprises the following steps: a) chemically treating sample such manner that and 5-methyl react differently two products have different base-pairing behavior duplex; b) enzymatically amplifying parts treated this manner; c) binding amplified surface; d) hybridizing set probes nucleic base sequences immobilized samples, said respective containing at least once dinucleotide sequence 5'-CpG-3'; e) removing non-hybridized probes; f) analyzing hybridized mass spectrometer, position on carrier allowing an allocation be hybridized; g) converting peak-patterns obtained from mass-specters matching new data with library.

参考文章(9)
M. Frommer, L. E. McDonald, D. S. Millar, C. M. Collis, F. Watt, G. W. Grigg, P. L. Molloy, C. L. Paul, A genomic sequencing protocol that yields a positive display of 5-methylcytosine residues in individual DNA strands. Proceedings of the National Academy of Sciences of the United States of America. ,vol. 89, pp. 1827- 1831 ,(1992) , 10.1073/PNAS.89.5.1827
J. G. Herman, J. R. Graff, S. Myohanen, B. D. Nelkin, S. B. Baylin, Methylation-specific PCR: a novel PCR assay for methylation status of CpG islands Proceedings of the National Academy of Sciences of the United States of America. ,vol. 93, pp. 9821- 9826 ,(1996) , 10.1073/PNAS.93.18.9821
T. Rein, M. L. DePamphilis, H. Zorbas, Identifying 5-methylcytosine and related modifications in DNA genomes Nucleic Acids Research. ,vol. 26, pp. 2255- 2264 ,(1998) , 10.1093/NAR/26.10.2255
Cheryl L. Paul, Susan J. Clark, Cytosine methylation: quantitation by automated genomic sequencing and GENESCAN analysis. BioTechniques. ,vol. 21, pp. 126- 133 ,(1996) , 10.2144/96211RR04