Description
For highly sensitive and specific one-step RT-PCR
- Fast and easy one-tube setup
- Efficient one-step RT-PCR of any RNA template without optimization
- Unique enzyme mix for high specificity and sensitivity
- Balanced mixture of enzymes with optimized reverse-transcription buffer
The QIAGEN One-Step RT-PCR Kit provides a blend of Sensiscript and Omniscript Reverse Transcriptases, HotStarTaq DNA Polymerase, QIAGEN OneStep RT-PCR Buffer, a dNTP mix, and Q-Solution, a novel additive that enables efficient amplification of “difficult” (e.g., GC-rich) templates. The easy one-tube setup and optimized components result in highly sensitive and successful results.
Efficient detection of viral RNA.
A 336 bp fragment of F-gene mRNA was reverse-transcribed and amplified from Sendai virus RNA isolated from persistently infected Vero cells. Reactions were prepared using the QIAGEN OneStep RT-PCR Kit and the indicated number of viral genome copies. M: markers. (Data kindly provided by H. Rausch, Max Planck Institute for Biochemistry, Martinsried, Germany as part of the project “Experimental control of virological work at safety levels 2 and 3 in Bavaria,” supported by the Bavarian Ministry of the Environment.)
Highly specific RT-PCR using low amounts of template.
One-step RT-PCR was carried out using the indicated amounts of total RNA from HeLa cells and primers specific for α-catenin, amplifying a 690 bp product. All reactions were carried out following suppliers’ instructions. M: 100 bp ladder.
Wide range of annealing temperatures
The optimal primer annealing temperature is dependent on the base composition (i.e., the proportion of A, T, G, and C nucleotides), primer concentration, and ionic reaction environment. QIAGEN PCR Buffers contain both K+ and NH4+ and deliver high yields of specific PCR product over a wide range of annealing temperatures (see figure “Increased specific primer annealing“). This specificity is achieved by destabilizing non-specifically bound primers, providing a more robust reaction environment and eliminating the need for tedious annealing temperature optimization. In contrast, the range of optimal PCR annealing temperatures is smaller and less predictable using a PCR or one-step RT-PCR buffer that only contains K+, as illustrated in figure “Influence of annealing temperature on specificity“.
