Control DNAs are powerful tools in the investigation of genomic DNA methylation and epigenomic research. They can be utilized in many protocols where they can serve as comparisons to sample DNA. Both positive and negative methylation control DNA are available for bisulfite conversion methods, methyl-DNA immunoprecipitation (Me-DIP) or by methyl-CpG binding domain-based (MBDCap) proteins methylation-specific PCR (MSP) or real time PCR.