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  • CpG Methylated HeLa Genomic DNA


    Human female HeLa (cervix adenocarcinoma) genomic DNA that was enzymatically methylated with CpG Methylase (M.SssI), suitable as a positive control in the study of CpG dinucleotide methylation.

    Advantages and Features


    • A positive control for Methylation-Specific PCR (MSP) (2), Bisulfite sequencing, Methylation-sensitive Single-Nucleotide Primer Extension (Ms-SNuPE), Combined Bisulfite Restriciton Analysis (COBRA), Bisulfite treatment and PCR-Single-Strand Conformation Polymorphism Analysis (Bisulfite-PCR-SSCP/BiPS).

    Properties and Usage

    Storage Temperature


    Quality Control

    Quality Assurance Statement

    • Purified free of contaminating proteins and RNA.

    Quality Control Assays

    The following Quality Control Tests are performed on each new lot and meet the specifications designated for the product. Individual lot data can be found on the Product Summary Sheet/Datacard or Manual which can be found in the Supporting Documents section of this page.
    • Functional Test (Genomic DNA Demethylation, Bisulfite Treatment):

      5-Aza-dc treated genomic DNA is bisulfite converted and tested in a PCR reaction with primers specific to the CpG methylated IGS ribosomal DNA. The percentage of demethylated CpG dinucleotides is determined by DNA sequencing of the appropriate sized DNA products.

    • Functional Test (Genomic DNA Methylation, Radioactivity Incorporation):
      CpG methylated genomic DNA is tested in a reaction containing radiolabelled SAM and CpG methylase. After incubation the percentage of labeled genomic DNA is determined by radioactive incorporation


    1. A260/280 Ratio: 1.85


    1. Sambrook, J. and Russell, D. (2001). Molecular Cloning: A Laboratory Manual. (3rd ed.), PubMedID: (pp. 6.4-6.12). Cold Spring Harbor.
    2. Herman,J. G. and Baylin, S. B. (1996). U.S. Patent No. 5,786,146, ohns Hopkins University School of Medicine.
    3. Frommer, M., et. al. (1992). PNAS USA. 89

    Supporting Documents

    Material Safety Datasheets

    The following is a list of Material Safety Data Sheets (MSDS) that apply to this product to help you use it safely. The following file naming structure is used to name these document files: [Product Name] MSDS. For international versions please contact us at info@neb.com.


    The Product Summary Sheet, or Data Card, includes details for how to use the product, as well as details of its formulation and quality controls. The following file naming structure is used to name the majority of these document files: [Catalog Number]Datasheet-Lot[Lot Number]. For those product lots not listed below, please contact NEB at info@neb.com or fill out the Technical Support Form for appropriate document.