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. Supplied in five tubes containing 1mL each. Digestion of RNA with RNase A alone leaves fragments of RNA that 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. 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:
One unit of RNase A is the amount required to give an increase in absorption at 286 nm of 0.0146 absorbance units per minute in a 1mL volume.

规格

Enzyme:	RNase
Product Line:	Ambion™
Product Size:	5 x 1mL
Shipping Condition:	Dry Ice

内容及储存