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Promega™ RNasin™ Plus RNase Inhibitor DFS Item

Ribonuclease inhibitors with broad-spectrum RNase inhibitory properties. Recombinant and native available. Plus version protects RNA before, during and after heating.

Manufacturer:  Promega™ N2615

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Catalog No. PR-N2615



Recombinant mammalian RNase inhibitor expressed as a soluble protein in E. coli. This protein can be purified by a combination of ion exchange and hydrophobic interaction chromatography, yielding a >90% pure protein with no E. coli RNase carryover.

  • Inhibits eukaryotic RNases, including RNase A and RNase B, similar to human placental RNase inhibitor
  • Compatible with enzymes such as AMV, M-MLV, and ImProm-II™ Reverse Transcriptases, as well as Taq and Tfl DNA Polymerases
  • Offers increased resistance to oxidation over the human version of the protein
  • May be heated in a mixture with RNase without reactivation of the RNase, even at temperatures as high as 70°C for 15 minutes
  • Provides demonstrated compatibility with several RT-PCR systems, including Access, AccessQuick™, and TaqMan™-based RT-PCR Systems



Amount of RNasin Plus RNase Inhibitor required to inhibit the activity of 5ng of RNase A by 50%
−30 to −10°C
RT-PCR, quantitative RT-PCR, in-vitro transcription, in-vitro translation, coupled transcription/translation, useful in any applications where eukaryotic RNase contamination is a potential problem, protection of mRNA in cDNA synthesis reactions