| 摘要 |
Disclosed is a method for detecting 5-methylcytosine in genomic DNA samples. First, genomic DNA from a DNA sample is chemically reacted with a reagent, 5-methylcytosine and cytosine reacting differently. The pre-treated DNA is then ampified with primers from a different sequence using a polymerase. In the following step, the amplified genomic DNA is hybridised to an oligonucleotide array and PCR products are obtained which must be provided with an identifying mark. Alternatively, the PCR products can be extended in a Primer Extension Reaction, the extension products also being provided with an identifying mark. The last step involves examining the extended oligonucleotides for the presence of the identifying mark.
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