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  • λ DNA-BstEII Digest


    The BstEII digest of lambda DNA (cI857 ind 1 Sam 7) yields 14 fragments suitable for use as molecular weight standards for agarose gel electrophoresis (1). The approximate mass of DNA in each of the bands is provided (assuming a 1.0 μg load) for approximating the mass of DNA in comparably intense samples of similar size.

    Comes supplied with 1 vial of Gel Loading Dye, Blue (6X).


    Lambda DNA-BstE II Digest visualized by ethidium bromide staining. 1.0% agarose gel.

    Properties and Usage



    Effective Size Range

    117bp to 8,454bp

    Storage Temperature


    Storage Conditions

    10 mM Tris-HCl
    1 mM EDTA
    pH 8.0 @ 25°C


    1. For long term storage, store at -20°C. If samples need to be diluted, use TE or other buffer of minimal ionic strength. DNA may denature if diluted in dH20 and subsequently heated. Temperatures > 60°C may cause denaturation.
    2. The cohesive ends of fragments 1 and 4 may be separated by heating to 60°C for 3 minutes.
    3. 1X Gel Loading Dye, Blue:
      2.5% Ficoll-400
      11 mM EDTA
      3.3 mM Tris-HCL (pH 8.0@25°C)
      0.017% SDS
      0.015% bromophenol blue


    1. Daniels, D.L. et al (1983). Appendix II: Complete Annotated Lambda Sequence. R.W. Hendrix, J.W. Roberts, F.W. Stahl and R.A. Weisberg(Ed.), Lambda-II. 519-676. New York: Cold Spring Harbor Laboratory Press.
    2. Forster, A.C. et al. (1985). Nucl. Acids Res. 13, 745-761.

    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.
    1. What are the overhangs on the DNA ladder fragments? Can I end-label them using the T4 polynucleotide kinase (PNK)? What about the Klenow fragment?
    2. How can I quantify the amount of DNA in each band of a marker?
    3. Why does my Lambda DNA molecular weight marker appear smeared and not represent the correct banding pattern?
    4. Can I use GelRed with the DNA Ladders from NEB?
    5. Can I use Midori Green with the DNA Ladders from NEB?
    1. Suggested protocol for loading a sample

    Heat at 60C for 3 minutes to separate the cohesive ends of fragments 1 and 4.

    To make it ready-to-load, dilute in TE buffer instead of water.