RNaseOUT Recombinant Ribonuclease Inhibitor is a potent noncompetitive inhibitor of pancreatic-type ribonucleases such as RNase A, and is used to avoid RNA degradation in a variety of applications. RNaseOUT Recombinant Ribonuclease Inhibitor is an acidic protein with a molecular weight of ~52 kDa. RNaseOUT inhibits RNase A, RNase B, and RNase C.