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Producing molecular biology reagents without purification.
Sanchita Bhadra1,2, Vylan Nguyen3, Jose-Angel Torres3
1Department of Molecular Biosciences, College of Natural Sciences, The University of Texas at Austin, Austin, Texas, United States of America.
Plos One
|June 1, 2021
Summary
Researchers developed a simplified method to create cellular reagents using common incubators and desiccants. This innovation enables accessible, local production of essential enzymes for diagnostic and molecular biology applications, including PCR and SARS-CoV-2 testing.
Area of Science:
- Synthetic Biology
- Molecular Biology
- Biotechnology
Background:
- Commercial enzymes are crucial for molecular biology but can be expensive and difficult to access.
- Cellular reagents offer a potential alternative, but their preparation often requires specialized equipment.
- There is a need for simplified, accessible methods for producing these reagents, especially for distributed or local manufacturing.
Purpose of the Study:
- To develop a simplified method for preparing cellular reagents.
- To demonstrate the broad applicability of these reagents in molecular and synthetic biology.
- To validate the feasibility of local and distributed production of cellular reagents.
Main Methods:
- Utilized a common bacterial incubator to grow and dry enzyme-expressing bacteria at 37°C.
- Employed inexpensive chemical desiccants for the drying process.
- Tested the dried cellular reagents in various applications including PCR, qPCR, reverse transcription, isothermal amplification, and Golden Gate assembly.
Main Results:
- Successfully prepared and applied dried cellular reagents in diverse molecular and synthetic biology processes.
- Demonstrated the use of these reagents in developing easy-to-use testing kits.
- Confirmed the feasibility of local production in the United Kingdom, Cameroon, and Ghana, highlighting scalability.
Conclusions:
- The simplified method makes cellular reagent technology widely accessible and amenable to local production.
- Dried cellular reagents are effective replacements for commercial enzymes in key biological reactions.
- This approach supports scalable, distributed reagent production and advances synthetic biology applications.

