WarmStart RTx was developed for best performance with short amplicons in diagnostic amplification reactions (e.g. RT-LAMP and RT-PCR). However, it performs well in cDNA synthesis, with products up to 5 kb. For longer products, we recommend ProtoScript® II (NEB #M0368) or the convenient ProtoScript II First Strand cDNA Synthesis Kit (NEB #E6560).
For the longest cDNA products, we would recommend Induro® Reverse Transcriptase (NEB #M0681), a group II intron-encoded RT.
Help us celebrate our 50th anniversary! We have hidden 1,000 golden butterflies and are waiting for you to find them. They can be anywhere that you find NEB! Beginning April 15th, be sure to visit our website and tables at tradeshows and events you are attending. Visit our social media channels frequently for tips on where we have hidden the butterflies – and once you find one, either click or scan the code to be eligible for a 50th anniversary prize pack, as well as a grand prize trip to NEB headquarters in Ipswich, MA!.
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