T7 RNA Polymerase with buffer B
Bacteriophage T7 RNA Polymerase is a DNA-dependent RNA polymerase with high specificity for the T7 promoter. This enzyme catalyzes the 5’→3’ synthesis of RNA from DNA downstream from its promoter.
Source:
Escherichia coli
Purity:
>98% as determined by SDS-PAGE. Purified by Ni-NTA chromatography.
Unit Definition:
One unit is defined as the amount of the enzyme incorporates 1 nmol of ATP into acid-insoluble product in 1 hour at 37°C.
Reaction Condition:
1X RNA Polymerase Reaction Buffer, supplemented with 3 mM each ATP, UTP, GTP, CTP, and DNA template containing the
T7 RNA Polymerase promoter. Incubate at 37°C.
Storage Buffer:
T7 RNA Polymerase is supplied in 100 mM Tris-HCl (pH 7.9), 20 mM KCl, 1 mM DTT, 1 mM EDTA, 0.1% Triton® X-100 and 50% (v/v)
glycerol.
Storage:
Store at -20°C for up to 6 months, and it is recommended to store at -80°C for long-term preservation. Avoid repeated freeze/thaw cycles.
Handling Instruction:
For optimal storage, aliquot the enzyme, reaction buffer and DTT reagent into smaller quantities and store at recommended temperature.
Avoid extended exposure to ice; instead, promptly retrieve the required portion and return it to the appropriate storage temperature.
Notes:
1. Transcription reaction should be performed under RNase free condition. Use nuclease-free tubes, reagents, and water to avoid
RNase contamination. Also, wear gloves when working with RNA.
2. The volume of T7 RNA Polymerase can be titrated between 1-2 μL in the IVT reaction to optimize your assay.
Shipping Conditions:
Dry ice
Escherichia coli
Purity:
>98% as determined by SDS-PAGE. Purified by Ni-NTA chromatography.
Unit Definition:
One unit is defined as the amount of the enzyme incorporates 1 nmol of ATP into acid-insoluble product in 1 hour at 37°C.
Reaction Condition:
1X RNA Polymerase Reaction Buffer, supplemented with 3 mM each ATP, UTP, GTP, CTP, and DNA template containing the
T7 RNA Polymerase promoter. Incubate at 37°C.
Storage Buffer:
T7 RNA Polymerase is supplied in 100 mM Tris-HCl (pH 7.9), 20 mM KCl, 1 mM DTT, 1 mM EDTA, 0.1% Triton® X-100 and 50% (v/v)
glycerol.
Storage:
Store at -20°C for up to 6 months, and it is recommended to store at -80°C for long-term preservation. Avoid repeated freeze/thaw cycles.
Handling Instruction:
For optimal storage, aliquot the enzyme, reaction buffer and DTT reagent into smaller quantities and store at recommended temperature.
Avoid extended exposure to ice; instead, promptly retrieve the required portion and return it to the appropriate storage temperature.
Notes:
1. Transcription reaction should be performed under RNase free condition. Use nuclease-free tubes, reagents, and water to avoid
RNase contamination. Also, wear gloves when working with RNA.
2. The volume of T7 RNA Polymerase can be titrated between 1-2 μL in the IVT reaction to optimize your assay.
Shipping Conditions:
Dry ice
Standard RNA synthesis procedures:
1. Below reaction mixture should be prepared under room temperature and combined in the following order:
2. Incubate at 37°C for 30 minutes to 2 hours.
3. Above reaction mixture may be scaled up or down proportionately.
1. Below reaction mixture should be prepared under room temperature and combined in the following order:
| Component | Amount | Final concentration |
| Nuclease-Free H2O | X μL | - |
| Template DNA | 0.5-1 μg | - |
| 10X RNA Polymerase Reaction Buffer B | 2 μL | 1X |
| ATP (100 mM) | 0.6 μL | 3 mM |
| UTP (100 mM) | 0.6 μL | 3 mM |
| CTP (100 mM) | 0.6 μL | 3 mM |
| GTP (100 mM) | 0.6 μL | 3 mM |
| 100 mM DTT | 2 μL | 10 mM |
| T7 RNA Polymerase (200 U/μL) | 1 μL | - |
| RNase inhibitor (optional) | 0.5 μL | 1 U/μL |
| Total reaction volume | 20 μL | - |
3. Above reaction mixture may be scaled up or down proportionately.