SP6 In Vitro Transcription Reaction Protocol (M0207)

  1. Set up the following reaction on ice
    (Please note that enzyme should always be added last):

    COMPONENTS 20 µl REACTION FINAL CONC. OR AMOUNT
    RNAPol Reaction Buffer

    2 µl

    1X

    NTP

    X µl

    0.5 mM each

    H2O

    X µl

     
    Template DNA

    X µl

    1 µg

    RNase Inhibitor (optional)

    0.5 µl

    1 U/µl final

    Fresh DTT (optional)

    X µl

    5 mM final

    SP6 RNA Polymerase

    2 µl

     
  2. Gently mix the reaction by pipetting up and down and microfuge briefly.

  3. Incubate at 37°C for 1 hour. For shorter transcripts, incubate at 37°C for 2-16 hours.

For analysis of transcription run 1 µl of transcription reaction on a 1% agarose gel.

Note: Higher yields of RNA may be obtained by raising rNTP concentrations up to 4 mM each. MgCl2 concentrations should also be increased up to 20mM (4 mM above the total rNTP concentration of 16 mM).