AS-136A is a small molecule developed as part of the NIH Probes effort. AS-136A is a potent measles virus (MeV) RNA-dependent RNA polymerase (RdRp) inhibitor. AS-136A is very stable, decreases virus titer after 24 hours in physiological conditions, and serves as a positive control in MeV inhibitory assays.
AS-136A is a potent measles virus RdRp inhibitor. Measles virus (MV) is a member of the paramyxovirus family. Ribavirin (R9644) is the only drug available for treatment of paramyxoviruses, and it has limited efficacy against MV. A series of small molecules has been developed to inhibit viral RNA-dependent RNA polymerase (RdRp), a protein vital to infection leading to the development of AS-136A, a very potent RdRp inhibitor. AS-136A has high stability and continues to decrease virus titer after 24 hours in physiologic conditions. AS-136A is now used as a positive control in experiments assaying MV inhibition. This compound is a product of the NIH Probes effort, also known as SID 24769845.