FastGene Scriptase II: Engineered Precision for Complex cDNA Synthesis
The FastGene Scriptase II is an advanced, engineered reverse transcriptase designed to overcome the limitations of traditional enzymes when processing complex or low-abundance RNA samples. In modern molecular biology, applications such as Next-Generation Sequencing (NGS) and high-sensitivity RT-qPCR require the synthesis of high-fidelity, full-length cDNA. This enzyme provides an expert solution by combining enhanced thermal stability with a complete lack of RNase H activity, ensuring that the original RNA template remains intact during the entire first-strand synthesis process.
The technology behind FastGene Scriptase II involves specific point mutations within the RNase H domain of the Murine Leukaemia Virus (MuLV) reverse transcriptase. By eliminating the endogenous RNase H activity, the enzyme prevents the premature degradation of the RNA-DNA heteroduplex, which is the primary cause of truncated cDNA products. Furthermore, its increased thermal stability allows the reaction to be performed at higher temperatures, effectively resolving secondary structures in GC-rich templates and increasing the overall robustness of the synthesis, even from very low amounts of starting material.
Key Benefits:
- Zero RNase H Activity: Maximise full-length cDNA yield. The engineered mutations prevent RNA degradation during synthesis, facilitating the production of long, representative cDNA libraries.
- Superior Thermal Stability: Overcome secondary structures. Operates effectively at higher temperatures, ensuring successful transcription of complex or GC-rich RNA templates.
- High Sensitivity: Low input compatibility. Specifically optimised to synthesise high-quality cDNA from very low amounts of RNA, making it ideal for limited clinical or environmental samples.
- Optimised for NGS and qPCR: Reliable downstream performance. The high fidelity and yield provided by Scriptase II ensure consistent performance in sensitive quantitative and sequencing workflows.
- Robust Enzyme Design: Consistent batch-to-batch results. The engineered structure provides increased resistance to common inhibitors, ensuring reproducible results in every experiment.
Technical Insights
Engineered for Reliability
FastGene Scriptase II represents the next generation of reverse transcription technology. By decoupling the synthetic activity of the transcriptase from the degradative activity of RNase H, researchers can achieve a higher degree of transcript representation. This is particularly beneficial for NGS library preparation, where bias introduced during the RT step can impact the final sequence data. The increased thermal tolerance also provides a more robust reaction environment for automated high-throughput systems.
Specifications
- Enzyme Type: Engineered MuLV Reverse Transcriptase
- RNase H Activity: Eliminated (RNase H Minus)
- Thermal Stability: Increased (High temperature compatible)
- Recommended Applications: NGS Library Prep, RT-qPCR, GC-rich templates, Low-input RNA
- Storage: Store at -20°C for long-term stability