Resilient

Synthesizes cDNA in the presence of strong PCR inhibitors

Sensitive

Transcribes both high copy and low copy messages

Reliable

Processes through secondary structure

Processive

Transcribes short and long transcripts

Direct quantification of six different targets in human total RNA using GoTaq® 2-Step RT-qPCR System. Nine parallel large-scale GoScript™ RT reactions were performed, containing log-fold variations of input human reference total RNA (10ng/µl to 0.1fg/µl). 10µl fractions of each reverse transcription reaction product, representing 100ng to 1fg of input RNA, were sampled directly into triplicate GoTaq® qPCR reactions, without dilution, for six separate monoplex assays. Each assay was designed to be specific for a different RNA target with an anticipated, proportionally different expression level: extremely high (5.8S rRNA), high (ACTB and B2M), moderate (HPRT ) or low (RPL29 and TBP1 ). In each different model, the results demonstrate the desired ≅3.3 cycle change per Δlog input, but with different Cq’s reflecting relative proportion within the total RNA sample.

An in vitro-transcribed RNA was reverse transcribed using oligo(dT) primer according to the manufacturer’s instructions. Reverse transcription was carried out in the absence and presence of ethanol (5%, 10% and 20%). cDNA was analyzed by qPCR using GoTaq® qPCR Master Mix. Changes in cycle threshold values in the absence and presence of ethanol were determined and converted to relative change in transcript level = (2Cqinhibitor – Cqnone). Data are the average of three separate experiments.