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Sequence of the MB-COMT promoter. This DNA fragment is located from nucleotides −256 to +51, and the cytosine shown in bold marked +1 is the 5′ end of the encoded mRNA. The underlined sequences mark the location of the nested PCR primers for bisulfite sequencing. The cytosines at 33 CpG sites are numbered −243 ∼ +22 with CpGs shown in bold.
