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NEB/T7 DNA Ligase/100,000 units/M0318S
  • NEB/T7 DNA Ligase/100,000 units/M0318S

NEB/T7 DNA Ligase/100,000 units/M0318S

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貨號: M0318S
品牌: NEB
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  • 常見問題
    • T7 DNA Ligase is an ATP-dependent ds DNA ligase from bacteriophage T7. It will catalyze the formation of a phosphodiester bond between adjacent 5´ phosphate and 3´ hydroxyl groups of duplex DNA. Cohesive end ligation and nick sealing can be efficiently catalyzed by T7 DNA Ligase (1,2). However, unlike T4 and T3 DNA Ligases, blunt end ligation is not efficiently catalyzed by T7 DNA Ligase. Addition of high concentrations of PEG 6000 [≥ 20% (w/v)] to the reaction can force T7 DNA Ligase to have measurable activity. However, under typical reaction conditions blunt-end DNA ligation does not occur in the presence of T7 DNA Ligase, making it a good choice for applications in which blunt and cohesive ends of DNA are present but only the cohesive ends are to be joined.
      M0318
      T7 DNA Ligase does not ligate blunt-end DNA fragments. Ligation reactions containing blunt fragments (ΦX174 DNA-HaeIII Digest (NEB #N3026 ) and sticky-end fragments (λ DNA-HindIII Digest (NEB #N3012 ) were set up with 200 ng of each substrate and 1 μl of each ligase, and incubated for 30 minutes at 25°C in their corresponding reaction buffers. Reactions were immediately stopped with 6X loading dye and resolved by electrophoresis on a 1% agarose gel and stained with ethidium bromide.

      Product Source

      An E. coli strain containing a recombinant gene encoding T7 DNA Ligase.
      This product is related to the following categories:
      DNA Ligases Products
      This product can be used in the following applications:
      Cloning Ligation,
      NEBridge? Golden Gate Assembly
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