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NEB/ProtoScript? II Reverse Transcriptase/40,000 units/M0368X

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貨號: M0368X

品牌: NEB

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- ProtoScript® II Reverse Transcriptaseis a recombinant M-MuLV reverse transcriptasewith reduced RNase H activity and increasedthermostability. It can be used to synthesize firststrand cDNA at higher temperatures than the wildtype M-MuLV. The enzyme is active up to 48°C,providing higher specificity, higher yield of cDNAand more full-length cDNA product up to 12 kb.
  Protoscript II Reverse Transcriptase performs as well as other RNase H^–Reverse Transcriptases
  Jurkat total RNA (1 μg) was used in a 20 μl first strand cDNA synthesis. Mixtures of all reaction components, except for reverse transcriptase, were held at different temperatures for 3 min. 200 units SuperScript® II (A) or NEB’s ProtoScript II Reverse Transcriptase(B) was added and incubated at the indicated temperature for 50 minutes, followed by heat inactivation for 5 min at 80°C. 1 μl of cDNA was used in a 25 μl PCR using LongAmpTaqMaster Mix (NEB #M0533) for 35–40 cycles.Ladder L is the 2 Log DNA Ladder (NEB #N0469).
  Robust cDNA synthesis is achieved even with longer templates
  Jurkat total RNA (1 μg) was used in a 20 μl first strand cDNA synthesis with 200 units of NEB ProtoScript II Reverse Transcriptase. Reactions were incubated at 42°C for 50 minutes, followed by heat inactivation for 5 minutes at 80°C. 1 μl of cDNA was used in a 25 μl PCR using LongAmpTaqMaster Mix (NEB #M0533) for 35–40 cycles. Sizes are indicated above gel.
  Generate high quality cDNA even with very low amounts of starting RNA
  Decreasing amounts of Jurkat total RNA (1 μg – 1 pg) were used in 20 μl first strand cDNA synthesis with 200 units of NEB ProtoScript II Reverse Transcriptase. Reactions were incubated at 42°C for 50 minutes, followed by heat inactivation for 5 minutes at 80°C. 1 μl of cDNA was used in a 25 μl PCR using LongAmpTaqMaster Mix (NEB #M0533) for 40 cycles. The target is a 0.6 kb fragment of GAPDH. Ladder L is the 2-Log DNA Ladder (NEB #N0469).
  ProtoScript II Reverse Transcriptasedisplays superior sensitivity
  Decreasing amounts of luciferase mRNA (10⁹to 10²) molecules were converted into cDNA in the presence of 1 ng Jurkat total RNA using 50 units of NEB ProtoScript II Reverse Transcriptasein a total reaction volume of 20 μl. 1/20 of the cDNA product was amplified using SsoAdvanced™ SYBR® Green Supermix. As few as 5 molecules of luciferase mRNA are detectable.
  Product Source
  The gene encoding a mutant M-MuLV Reverse Transcriptase (RNase H^–) is expressed in E.coli and purified to near homogeneity.
  This product is related to the following categories:
  RT-PCR Products,
  Reverse Transcriptases & RT-PCR Products,
  cDNA Synthesis & Reverse Transcriptases Products
  This product can be used in the following applications:
  Helicase-dependent Amplification,
  cDNA Synthesis,
  Reverse Transcription (cDNA Synthesis),
  RT-PCR & cDNA Synthesis,
  RT-qPCR, RT-PCR and cDNA Synthesis,
  PCR
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