RNasin Ribonuclease Inhibitor, 10,000u Item ID: PMN2115
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Ribonuclease inhibitors with broad-spectrum RNase inhibitory properties. Recombinant and native available. Plus version protects RNA before, during and after heating.
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. RNasin Plus RNase Inhibitor is a recombinant mammalian RNase inhibitor that is expressed as a soluble protein in E. coli, allowing easy purification through a combination of ion exchange and hydrophobic interaction chromatography. The protein is capable of inhibiting eukaryotic RNases (e.g., RNase A and RNase B) similarly to human placental RNase inhibitor. RNasin Plus RNase Inhibitor is tested in RT-PCR and compatible with enzymes such as AMV, M-MLV and ImProm-II Reverse Transcriptases or Taq and Tfl DNA Polymerases. RNasin Plus RNase Inhibitor also is tested and compatible with quantitative, real-time RT-PCR in a TaqMan assay. RNasin Plus RNase Inhibitor offers increased resistance to oxidation over the human version of the protein. Two cysteines in the human protein have been identified as especially sensitive to oxidation and react by forming a disulfide bond that can block the active site of the inhibitor. RNasin Plus, through natural amino acid diversity, lacks the ability to form this site-blocking disulfide. In addition, the new protein has characteristics never before realized, including continued inhibition of RNases above 50