id author title date pages extension mime words sentences flesch summary cache txt cord-328633-c31xsyeo Moser, Michael J. Thermostable DNA Polymerase from a Viral Metagenome Is a Potent RT-PCR Enzyme 2012-06-04 .txt text/plain 7868 441 54 Most RT-PCR protocols rely on two DNA polymerase (Pol) enzymes; a retroviral reverse transcriptase (RT) to copy RNA into cDNA and a thermostable DNA Pol to amplify the target sequence. Despite their wide use and general reliability, existing twoenzyme RT-PCR systems have several documented performance problems attributed to deficiencies inherent in retroviral RTs: 1) poor reagent stability, 2) low fidelity, 3) frequent rearrangements during cDNA synthesis, 4) secondary enzymatic activities (i.e. RNase H and strand switching), 5) bias for specific primers and templates, and 6) inhibition of PCR Pol enzymes [3, 4, 5, 6, 7] . We describe the discovery and biochemical attributes of one of these, 3173 Pol, its inherent RT activity and its incorporation into a single-enzyme PyroScriptH 2X RT-PCR Master Mix. The sensitivity, specificity and overall performance of this mix were compared to available one-and two-enzyme systems using a control MS2 RNA bacteriophage template, the clinically-relevant influenza A RNA and commonly used reference mRNA transcripts. ./cache/cord-328633-c31xsyeo.txt ./txt/cord-328633-c31xsyeo.txt