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  • pBR322 DNA-BstNI Digest


    The BstNI Digest of pBR322 DNA yields 6 fragments suitable for use as molecular weight standards for agarose gel electrophoresis (1,2).

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


    pBR322 DNA-BstNI Digest visualized by ethidium bromide staining. 1.4% agarose gel.

    Properties and Usage



    Effective Size Range

    13bp to 1,857bp

    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 dH2O.

      1X Gel Loading Dye, Blue:
      2.5% Ficoll-400
      11 mM EDTA
      3.3 mM Tris-HCl (pH 8.0@2.5°C)
      0.017% SDS
      0.015% bromophenol blue


    1. Sutcliffe, J.G. (1978). Cold Spring Harbor Symp. Quant. Bio.. 43, 77-90.
    2. Peden, K.W.C. (1983). Gene. 22, 277-280.

    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. Why is the separation of the lower bands incomplete?
    2. 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?
    3. How can I quantify the amount of DNA in each band of a marker?
    4. Can I use GelRed with the DNA Ladders from NEB?
    5. Can I use SYBR® with the DNA Ladders from NEB?
    6. Can I use Midori Green with the DNA Ladders from NEB?
    1. Suggested protocols for loading a sample (N3031)
    2. Suggested protocol for loading a sample
    To make it ready-to-load, dilute in TE buffer instead of water.