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Results of bisulfite-sequencing of the 588 bp fragment of the p16 CpG islands.

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posted on 25.04.2012, 02:24 by Zhe-Ming Lu, Jing Zhou, Xiuhong Wang, Zhenpo Guan, Hua Bai, Zhao-Jun Liu, Na Su, Kaifeng Pan, Jiafu Ji, Dajun Deng

(A) Sequences of the methylation-positive and negative clones from the 588 bp unbiased PCR products amplified using a CpG-free primer set and bisulfite-treated genomic DNA templates of two representative gastric carcinoma tissues containing methylated p16 by the 115 bp MethyLight assay [11]; (B) Sequences of the methylation-positive and negative clones from the 588 bp sMSP products. Purple bars, methylated CpG sites; Blue bars, seeding methylated CpG sites detected in the unbiased PCR products; Green bars, seeding methylated CpG sites used to design the sMSP primers. Each row presents one clone; Clone markers of methylation-positive p16 molecules (containing more than three methylated-CpG sites) are highlighted with blue color. The standard sequence of the fully methylated p16 amplicon and the primer-matched regions in each assay are demonstrated on the top part.

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