The New Gold Standard in cDNA Synthesis

For the past 15+ years, abm has been innovating to set the next gold standard in reverse transcriptase performance. After 10+ years of intensive R&D, we have now officially launched our next generation Reverse Transcription enzyme.

With improved thermostability, sensitivity, robustness, and resistance to contaminants, abm’s OneScript® brand of reverse transcriptases set a new benchmark for cDNA synthesis. Our OneScript® Hot is the only Reverse Transcriptase in the world that preserves performance at 50-80˚C, making it useful for even the most challenging projects.

Engineered for both research or demanding diagnostic product applications, our premium enzymes will meet all your project needs in terms of quality and budget. Try our products today – you won’t regret adding this collection to your RT toolkit!

OneScript® Hot


OneScript® Plus


OneScript® Hot Reverse Transcriptase

Synthesize cDNA from complex RNA templates with abm’s OneScript® Hot Reverse Transcriptase. Engineered for outstanding thermostability, our OneScript® Hot Reverse Transcriptase is ideal for handling secondary structures (e.g. GC-rich templates) as well as long, degraded, or contaminated RNA samples, making it the superior choice for challenging RNA templates.

Extreme thermostability At 50-80°C

Transcribes degraded samples and resists inhibitors/contaminants

High cDNA yields from difficult or ultra-low RNA samples

Outstanding Thermostability

OneScript® Hot Reverse Transcriptase has exceptional thermostability. OneScript® Hot Reverse Transcriptase (Cat. No. G593) was used in a 10 min. reaction with RNA template at temperatures ranging from 50 and 80˚C. The resulting synthesized cDNA was followed by PCR and visualized on a 1% agarose gel.

OneScript® Hot Reverse TranscriptaseG593
OneScript® Hot cDNA Synthesis KitG594
MegaFi™ One-Step RT-PCRG597
All-in-One 5X RT MasterMixG592

OneScript® Plus Reverse Transcriptase

Routine cDNA synthesis can be completed in just 10-15 minutes with abm’s OneScript® Plus Reverse Transcriptase! OneScript® Plus Reverse Transcriptase has improved thermostability and is engineered for high cDNA yields, high efficiency on low-input, long, or difficult RNA templates, and resistance to inhibitors and contaminants.

High thermostability at 50-55°C

Synthesize 15 kb RNA Templates

10-15 minutes reaction time

Excellent Elongation Ability

OneScript® Plus Reverse Transcriptase can elongate RNA templates up to 15 kb in length. OneScript® Plus Reverse Transcriptase (Cat. No. G237) was used in a reaction with a range of human RNA fragments. The resulting synthesized cDNA was followed by PCR and visualized on a 1% agarose gel.

OneScript® Plus Reverse TranscriptaseG237
OneScript® Plus cDNA Synthesis KitG236

Unsure which reverse transcriptase is right for you?

Unsure which reverse transcriptase is right for your application? Contact us for assistance or use the simple RT Enzyme Selection Guide below to compare the characteristics of each reverse transcriptase.

CHARACTERISTICOneScript® HotOneScript® Plus
Optimal Temperature60°C50°C
Maximum cDNA Elongation15 kb15 kb
Minimum Sample Input0.1 pg0.1 pg
Reaction Time10 min15 min
Inhibitor/Contamination Resistance••••••••
Tolerance to Complex Templates••••••••

Request a Free Sample

See for yourself why your fellow RT-PCR enthusiasts enjoy our product so much! Simply select the free product sample(s) you would like to receive and we will get in touch with you to coordinate the delivery to your lab. Please note that sample availability is limited and honored on a "first come first served" basis and shipping charges may apply.


Reverse Transcription
Polymerase Chain Reaction Knowledge Base

Variations to the System
Polymerase Chain Reaction Knowledge Base