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. 2014 Apr 24;9(4):e95527. doi: 10.1371/journal.pone.0095527

Figure 6. CpG pyrosequencing-based validation of Illumina 450K array results.

Figure 6

DNA methylation of blood leukocyte gDNA of 5 volunteers was bisulfite treated and amplified by specific biotinylated primer sets for respectively a highly methylated CpG probe region of the CCR6 gene, a medium methylated CpG probe region of the PCDHB4 gene and a weakly methylated CpG probe region of the MAFB gene. DNA methylation intensities obtained from the different CpG probes by CpG pyrosequencing were plotted against the β-values (0<x<1, reflecting 0–100% DNA methylation) obtained with the Illumina 450K array platform. Curve fitting reveals significant correlation of results between both platforms.