Store at -20°C. Do not store in a frost-free freez
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描述:
Ambion® RNase Cocktail™ is a mixture of two highly purified ribonucleases, RNase A (500 U⁄ml) and RNase T1 (20,000 U⁄ml) and is free of DNase and nicking activities. Use RNase Cocktail for all situations where it is desirable to degrade RNA, i.e. plasmid minipreps and ribonuclease protection assays. RNase Cocktail is supplied in 50% glycerol for maximum convenience. Digestion of RNA with RNase A alone leaves fragments of RNA which are large enough to be visible on agarose gels and precipitate in ethanol. RNase A cuts after C and U residues, and RNase T1 cuts after G residues. Consequently, the mixture of both enzymes results in a reduction in RNA fragment size over the use of either alone.
Quality Control RNase Cocktail Enzyme Mix is rigorously tested for contaminating nonspecific endonuclease, exonuclease, and protease activity. Functionality is determined in a ribonuclease protection assay.
Unit Definitions: RNase A: One unit of RNase A is the amount required to give
Contents and Storage
Ambion® RNase Cocktail™ is an enzyme mix which contains two highly purified ribonucleases, RNase A and RNase T1. Unit concentration is: RNase A at 500 U⁄ml and RNase T1 at 20,000 U⁄ml.
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注意事项:
For Research Use Only. Not for use in diagnostic procedures.