Related Experiment Video
Updated: Jun 29, 2025
09:26
DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation
Published on: December 29, 2021
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Reversible and Fully Controllable Generation of Organo-Soluble DNA (osDNA).
Vijay Kumar Siripuram1, Yashoda Krishna Sunkari1, Fei Ma1
1Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Avenue, New York City, New York 10065, United States.
ACS Omega
|April 8, 2024
Summary
Researchers developed organo-soluble DNA (osDNA) by linking DNA to a polyether, enabling reversible solubilization in organic solvents. This breakthrough allows for novel chemical modifications and expands DNA applications beyond aqueous environments.
Area of Science:
- Biochemistry
- Organic Chemistry
- Molecular Biology
Background:
- DNA is typically soluble only in aqueous solutions.
- Working with DNA in organic solvents is challenging but offers unique chemical modification possibilities.
- DNA-encoded library (DEL) technology often requires reactions in non-aqueous media.
Purpose of the Study:
- To develop a method for making DNA soluble in organic solvents.
- To ensure the transformation is reversible and the DNA remains unaltered.
- To demonstrate the utility of organo-soluble DNA (osDNA) in chemical reactions.
Main Methods:
- Covalently linking double-stranded DNA (dsDNA) fragments to a polyether moiety.
- Utilizing a built-in mechanism for reversible linkage and removal of the polyether.
- Testing osDNA solubility in various organic solvents and confirming DNA sequence integrity post-modification.
- Performing chemical modifications, such as amidation, on osDNA in 100% DMSO.
Main Results:
- Successfully created organo-soluble DNA (osDNA) with reversible properties.
- Confirmed solubility of osDNA in six organic solvents of decreasing polarity.
- Demonstrated successful amidation reaction on osDNA in 100% DMSO, a key step in DEL technology.
- Verified that the original DNA fragment is recovered unaltered after polyether removal.
Conclusions:
- The development of osDNA provides a versatile tool for DNA manipulation in non-aqueous solutions.
- This method enables chemical transformations on DNA that are not feasible in water.
- osDNA technology opens new possibilities for DNA applications, particularly in areas like DEL construction and chemical synthesis.
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