产品信息

The HiScribe SP6 RNA Synthesis Kit is designed for the in vitro transcription of RNA using SP6 RNA Polymerase. This kit is suitable for synthesis of high yield RNA transcripts and for incorporation of cap analogs (not included) or modified nucleotides (not included) to obtain capped, biotin-labeled or dye-labeled RNA. The kit is also capable of synthesizing high specific activity radiolabeled RNA for use as probes or targets.

RNA synthesized from this kit is suitable for many applications including RNA structure and function studies, ribozyme biochemistry, probes for RNase protection or gel shift assays, hybridization-based blots, anti-sense RNA or RNAi experiments, microarray analysis, microinjection, sgRNA synthesis and in vitro translation studies.

This kit contains sufficient reagents for 50 reactions of 25 µl each. Each standard reaction yields ≥ 80 µg of RNA from 1 µg SP6 Control Template DNA. Each kit can yield ≥ 4 mg of RNA.

Figure 1: Transcription by SP6 RNA Polymerase.

Figure 2: Comparison of RNA yields from commercially-available SP6 in vitro transcription kits demonstrates the robustness of the NEB HiScribe SP6 RNA Synthesis Kit

产品类别:

RNA Capping,

RNA Synthesis In vitro Transcription (IVT)

• 试剂盒组成

  本产品提供以下试剂或组分：

  NEB #	名称	组分货号	储存温度	数量	浓度
  E2070S     -20       SP6 Reaction Buffer B2070AVIAL -20 1 x 0.125 ml Not Applicable   SP6 RNA Polymerase Mix M2070AVIAL -20 1 x 0.125 ml Not Applicable   SP6 Control Template N2070AVIAL -20 1 x 0.02 ml 0.25 mg/ml   ATP (Tris) N2071AVIAL -20 1 x 0.125 ml 50 mM   GTP (Tris) N2072AVIAL -20 1 x 0.125 ml 50 mM   UTP (Tris) N2073AVIAL -20 1 x 0.125 ml 50 mM   CTP (Tris) N2074AVIAL -20 1 x 0.125 ml 50 mM   DNase I (RNase-free) M0303AVIAL -20 1 x 0.1 ml 2,000 units/ml   LiCl Solution B2051AVIAL -20 1 x 1.4 ml Not Applicable   Dithiothreitol (DTT) B1222AVIAL -20 1 x 0.5 ml 100 mM

• 特性和用法

  需要但不提供的材料

  DNA Template: The DNA template must be linear and contain the SP6 RNA Polymerase promoter with the correct orientation in relation to the target sequence to be transcribed.
  General: Thermocycler or 37°C dry air incubator, microcentrifuge, nuclease-free water, nuclease-free tubes and tips
  Purification: Phenol, chloroform, ethanol, 3 M Sodium Acetate, pH 5.2 or 5 M Ammonium Acetate, spin columns, equipment for RNA quantitation
  Gel Analysis: Gels, running buffers, loading dye, nucleic acid ladders, gel apparatus, power supply

  Optional Materials
  Cap Analogs: NEB #S1411, #S1404, #S1405, #S1406, #S1407
  Modified NTPs: Biotin-, Fluorescein-, Digoxigenin-, Aminoallyl-
  Labeling: [α-³²P] labeled ribonucleotide (800-6,000 Ci/mmol), storage phosphor screen

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操作说明、说明书 & 用法

• 操作说明

  1. RNA Synthesis Protocols (E2070)
  2. Purification of Synthesized RNA (E2070)

• 说明书

  产品说明书包含产品使用的详细信息、产品配方和质控分析。

  • manualE2070

• 应用实例

  • Scaling of High-Yield In vitro Transcription Reactions for Linear Increase of RNA Production

FAQs & 问题解决指南

• FAQs

  1. What is the promoter sequence for SP6 RNA Polymerase?
  2. Does transcription with SP6 RNA Polymerase require a primer?
  3. Does SP6 RNA Polymerase leave an extra base at the end of the transcript?
  4. Will SP6 RNA Polymerase initiate transcription from a single-stranded DNA template?
  5. Will SP6 RNA Polymerase work on an uncut plasmid?
  6. Can aberrant RNA be produced using SP6 RNA polymerase?
  7. Can kit components from the HiScribe SP6 RNA Synthesis Kit be substituted with SP6 RNA Polymerase and Reaction Buffer (NEB #M0207)?
  8. What is the sequence of the SP6 Control Template?
  9. Can I use the Monarch RNA Cleanup Kits to cleanup my in vitro transcription (IVT) reaction?
  10. Are modified nucleotides included in the kit?
  11. Do I need to add DTT to the reaction?

• 问题解决指南

  Control Reaction
  The SP6 control template is a linearized plasmid containing the Cypridina luciferase (CLuc) gene under the transcriptional control of the SP6 promoter. The size of the run-off transcript is 1.76 kb. The control reaction should yield ≥ 80 µg of RNA in 2 hours.

  If the control reaction is not working, there may be technical problems during the reaction set up. Repeat the reaction by following the protocol carefully; take every precaution to avoid RNase contamination. Contact NEB for technical assistance.

  The control plasmid pCLuc-SP6 sequence can be found within the DNA Sequences and Maps Tool. The pCLuc-SP6 control template is generated by linearizing the plasmid with XbaI.

  Low Yield of Full-length RNA
  If the transcription reaction with your template generates full-length RNA, but the yield is significantly lower than expected, it is possible that contaminants in the DNA template are inhibiting the RNA polymerase, or the DNA concentration may be incorrect. Alternatively, additional purification of DNA template may be required. Phenol:chloroform extraction is recommended (see template DNA preparation section).

  Low Yield of Short Transcript
  High yields of short transcripts (< 0.3 kb) are achieved by extending incubation time and increasing the amount of template. Incubation of reactions up to 16 hours (overnight) or using up to 2 μg of template will help to achieve maximum yield.

  RNA Transcript Smearing on Denaturing Gel
  If the RNA appears degraded (e.g. smeared) on a denaturing agarose or polyacrylamide gel, the DNA template is most likely contaminated with RNase.  DNA templates contaminated with RNAse can affect the length and yield of RNA synthesized (a smear below the expected transcript length). If the plasmid DNA template is contaminated with RNase, perform phenol:chloroform extraction followed by ethanol precipitation. Dissolve the DNA in nuclease-free water (see template DNA preparation section).
   
  RNA Transcript of Larger Size than Expected
  If the RNA transcript appears larger than expected on a denaturing gel, template plasmid DNA may be incompletely digested. Even small amounts of circular DNA can produce large amounts of long transcripts. Check the template for complete digestion on an agarose gel compared to an uncut plasmid sample. If undigested plasmid is confirmed, repeat the restriction enzyme digestion.
  Larger size bands may also be observed when the RNA transcript is not completely denatured due to the presence of strong secondary structure.

  RNA Transcript of Smaller Size than Expected
  If denaturing gel analysis shows the presence of smaller bands than expected, it is most likely due to premature termination by the polymerase. Some sequences which resemble the SP6 RNA Polymerase termination signal may cause premature termination. For GC-rich templates, or templates with secondary structure, incubation at 42°C may improve the yield of full-length transcript.
  If premature termination of transcription is found in high specific activity radiolabeled RNA probe synthesis, increase the concentration of the “limiting nucleotide”. Additional unlabeled limiting NTP can be added to the reaction to increase the proportion of full-length transcript, however the improvement in yield of full-length product will compromise the specific activity of the probe.