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    BstEII

    This enzyme has transitioned to an improved new buffer system. Visit NEBCutSmart.com for further details.
     
    The new and current Double Digest Finder and current Activity/Performance Chart for the CutSmart buffer system are available. The previous version of the Double Digest Finder, as well as the previous Version of Activity/Performance Chart that use the former buffer system, are still available for your convenience.

    BstEII has High Fidelity (HF) and RE-Mix Master Mix versions available.
    cloned at neb recombinant timesaver 5min incubation temp heat inactivation no
    BstE-II-cutsite_1
    Isoschizomers | Single Letter Code
    Catalog #SizeConcentrationPriceQtyAdd to Cart
    R0162S2,000 units10,000 units/ml$57.00Add to Cart
    R0162L10,000 units10,000 units/ml$228.00Add to Cart
    R0162M10,000 units50,000 units/ml$228.00Add to Cart
    Categories:
    Restriction Endonucleases: B,
    Time-Saver™ Qualified Restriction Enzymes
    Applications:
    Restriction Enzyme Digestion

    Description

    BstEII has a High Fidelity version BstEII-HF® (NEB #R3162).

    High Fidelity (HF®) Restriction Enzymes have 100% activity in CutSmart™ Buffer; single-buffer simplicity means more straightforward and streamlined sample processing. HF enzymes also exhibit dramatically reduced star activity. HF enzymes are all Time-Saver™ qualified and can therefore cut substrate DNA in 5-15 minutes with the flexibility to digest overnight without degradation to DNA. Engineered with performance in mind, HF restriction enzymes are fully active under a broader range of conditions, minimizing off-target products, while offering flexibility in experimental design.

    Product Source

    An E. coli strain that carries the BstEII gene from Bacillus stearothermophilus ET (N. Welker).

    Reagents Supplied

    The following reagents are supplied with this product:

    Store at (°C)Concentration
    NEBuffer 3.1-2010X

    Properties and Usage

    Unit Definition

    One unit is defined as the amount of enzyme required to digest 1 µg of λ DNA in 1 hour at 60°C in a total reaction volume of 50 µl.

    Reaction Conditions

    1X NEBuffer 3.1
    Incubate at 60°C

    1X NEBuffer 3.1:
    100 mM NaCl
    50 mM Tris-HCl
    10 mM MgCl2
    100 μg/ml BSA
    pH 7.9 @ 25°C

    Activity in NEBuffers

    NEBuffer 1.1: 10%
    NEBuffer 2.1: 75%
    NEBuffer 3.1: 100%
    CutSmart™ Buffer: 75%

    Diluent Compatibility

    Storage Temperature

    -20°C

    Storage Conditions

    10 mM Tris-HCl
    50 mM KCl
    1 mM DTT
    0.1 mM EDTA
    200 μg/ml BSA
    50% Glycerol
    pH 7.4 @ 25°C

    Heat Inactivation

    No

    Methylation Sensitivity

    dam methylation: Not Sensitive
    dcm methylation: Not Sensitive
    CpG Methylation: Not Sensitive

    Activity at Temperature

    @37°C: 50%

    Quality Control

    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.
    • Endonuclease Activity (Nicking):
      The product is tested in a reaction containing a supercoiled DNA substrate. After incubation for 4 hours the percent converted to the nicked form is determined by agarose gel electrophoresis.
    • Exonuclease Activity (Radioactivity Release):
      The product is tested in a reaction containing a radiolabeled mixture of single and double-stranded DNA. After incubation for 4 hours the exonuclease activity is determined by the % release of radioactive nucleotides.
    • Ligation and Recutting (Terminal Integrity):
      After an over-digestion of DNA with a restriction endonuclease the percentage of the DNA fragments ligated with T4 DNA ligase and the percentage that can be recut are determined by agarose gel electrophoresis.
    • Non-Specific DNase Activity (16 hour):
      The product is tested for non-specific nuclease degradation in a reaction containing a DNA substrate. After incubation for 16 hours there is no detectable degradation of the DNA substrate as determined by agarose gel electrophoresis.

    Notes

    1. Of the over 3,000 known restriction endonucleases, BstEII is one of the few that produces extensions of more than 4 bases.
    2. Star activity may result from a glycerol concentration of >5%

    Supporting Documents

    Certificate of Analysis

    The Certificate of Analysis (COA) is a signed document that includes the storage temperature, expiration date and quality control's for an individual lot. The following file naming structure is used to name these document files: [Product Number]_[Size]_[Version]_[Lot Number]

    Specifications

    The Specification sheet is a document that includes the storage temperature, shelf life and the specifications designated for the product. The following file naming structure is used to name these document files: [Product Number]_[Size]_[Version]

    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.

    Datacards

    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 effect does BSA have on the performance of NEB’s restriction enzymes when included in the new buffers?
    2. Do I have to set-up digests with Time-Saver™ qualified enzymes for 5-15 minutes? Can I digest longer?
    3. How can I access the old NEBuffer Activity Chart?
    4. How can I access the old Double Digest Finder?
    1. Optimizing Restriction Endonuclease Reactions

    Selection Tools

    Usage Guidelines & Tips

    Troubleshooting Guides

    Interactive Tools

    BstEII will exhibit star activity in a low salt buffer.
    You will not get additional cutting after incubation at 60C for 1-2hr.