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Promega Corporation

RNasin® Ribonuclease Inhibitors

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RNases are ubiquitous and can cause RNA degradation and compromise RNA integrity. Native and Recombinant RNasin® Inhibitors are 50kDa proteins that inhibit RNase A family and human placental RNases by noncovalently binding to RNases in a 1:1 ratio. For downstream applications such as GoScript™ Reverse Transcriptase, AMV/M-MLV reverse transcriptases, SP6, T7/T3 RNA polymerase, and Taq DNA polymerases, Recombinant RNasin® Inhibitor does not inhibit RNase T1, S1 nuclease, RNase from Aspergillus, RNase H, RNase ONE™ Ribonuclease and enzymes. Learn more about these products.

RNasin® P...

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  • Prices valid for US customers only
Product Size Conc. Catalog # *List Price QTY Add to Cart

RNasin® Ribonuclease Inhibitor

20–40u/μl N2111 $ 203.00 Add to cart

RNasin® Ribonuclease Inhibitor

20–40u/μl N2115 $ 499.00 Add to cart

Recombinant RNasin® Ribonuclease Inhibitor

20–40u/μl N2511 $ 116.00 Add to cart

Recombinant RNasin® Ribonuclease Inhibitor

20–40u/μl N2515 $ 283.00 Add to cart

RNasin® Plus RNase Inhibitor

40u/μl N2611 $ 135.00 Add to cart

RNasin® Plus RNase Inhibitor

40u/μl N2615 $ 340.00 Add to cart

QC Tests

SDS-PAGE/purity, DNase, RNase, latent RNase, endonuclease.


Recombinant and RNasin® Plus: Recombinant strain of E. coli (Cat.# N2511, N2515, N2611, N2615).

Native: Human placenta (Cat.# N2111, N2115).

Storage Buffer

20mM HEPES-KOH (pH 7.6 at 4°C), 50mM KCl, 8mM DTT and 50% (v/v) glycerol.

Storage Conditions

Store at –20°C.

Unit Definition

One unit is defined as the amount of RNasin® Ribonuclease Inhibitor required to inhibit the activity of 5ng of ribonuclease A by 50%. Activity is measured by the inhibition of hydrolysis of cytidine 2,3´-cyclic monophosphate by ribonuclease A.

For product intended use please see Patents & Disclaimers tab.

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