What question did this study set out to answer?

To develop an isothermal, multi-enzyme in vitro amplification system for nucleic acids modeled on the replication strategy of retroviruses.

March 1, 1990Proceedings of the National Academy of SciencesOpen Access

Isothermal, in vitro amplification of nucleic acids by a multienzyme reaction modeled after retroviral replication.

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Authors

JGJ C GuatelliMerck & Co., Inc., Rahway, NJ, USA (United States)KWKourtnie WhitfieldHoward Hughes Medical Institute DKDeborah Y. KwohScripps Research Institute

Discussion

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Overview

Laboratory investigation demonstrates exponential nucleic acid amplification in vitro, suggesting an efficient diagnostic approach for detecting rare genetic sequences.

Key Points

To develop an isothermal, multi-enzyme in vitro amplification system for nucleic acids modeled on the replication strategy of retroviruses.
Reconstituted an in vitro replication cycle using three enzymes: reverse transcriptase, RNase H, and a DNA-dependent RNA polymerase.
Maintained constant temperature (isothermal conditions) to support continuous transcription and reverse transcription via cDNA intermediates.
Achieved a ten million-fold amplification of target nucleic acid sequences after a 1- to 2-hour incubation.
Demonstrated an initial amplification rate of 10-fold every 2.5 minutes with exponential accumulation of both cDNA and RNA products.

Cite This Study

Guatelli et al. (1990) studied this question.

synapsesocial.com/papers/6a0eedbdaa1655e5fb2304a2 https://doi.org/10.1073/pnas.87.5.1874

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March 1, 1990Proceedings of the National Academy of SciencesOpen Access

Isothermal, in vitro amplification of nucleic acids by a multienzyme reaction modeled after retroviral replication.

View Full Paper

Ask AI

Bookmark

Authors

JGJ C GuatelliMerck & Co., Inc., Rahway, NJ, USA (United States)KWKourtnie WhitfieldHoward Hughes Medical Institute DKDeborah Y. KwohScripps Research Institute

Discussion

Member takes

Overview

Laboratory investigation demonstrates exponential nucleic acid amplification in vitro, suggesting an efficient diagnostic approach for detecting rare genetic sequences.

Key Points

To develop an isothermal, multi-enzyme in vitro amplification system for nucleic acids modeled on the replication strategy of retroviruses.
Reconstituted an in vitro replication cycle using three enzymes: reverse transcriptase, RNase H, and a DNA-dependent RNA polymerase.
Maintained constant temperature (isothermal conditions) to support continuous transcription and reverse transcription via cDNA intermediates.
Achieved a ten million-fold amplification of target nucleic acid sequences after a 1- to 2-hour incubation.
Demonstrated an initial amplification rate of 10-fold every 2.5 minutes with exponential accumulation of both cDNA and RNA products.

Cite This Study

Guatelli et al. (1990) studied this question.

synapsesocial.com/papers/6a0eedbdaa1655e5fb2304a2 https://doi.org/10.1073/pnas.87.5.1874

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