for molecular biology
(Solution of 50% glycerol, 10mM Tris-HCL pH 8.0)
Endonuclease and exonuclease, none detected
NICKase and DNase, none detected
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NONH for all modes of transport
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
The product is supplied in a solution containing 50% glycerol and 10 mM Tris-HCl, pH 8.0.
This product is stable for at least 2 years when stored properly at -20 °C.
Boiling stock solutions of this RNase A product to inactivate residual DNase is not necessary and may cause precipitation of RNase and possible loss of enzymatic activity.
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
The Kunitz unit was created to reflect the non-linear nature of the RNAse enzymatic reaction. As the reaction progresses the activity changes due to RNA as a heterogeneous polymeric substrate; therefore, the unit of moles or micomoles per minute becomes inaccurate. As such, our enzymatic assay describes a unit that varies throughout the reaction: One unit will cause a decrease of 100% per minute in the value of E0 - Ef at pH 5.0 at 25°C. Ef is determined in the RNAse control step, while E0 reflects the current reaction rate.
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