Related Experiment Video
Updated: Jun 10, 2025
09:16
In Vitro Directed Evolution of a Restriction Endonuclease with More Stringent Specificity
Published on: March 25, 2020
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Enzymatic Cleavage of Double-Stranded DNA-Encoded Libraries (DELs) to Single-Stranded DELs with Compounds at the 3'
Masatoshi Niwa1, Jun Hayashida2, Munefumi Tokugawa1
1Chemical Research Laboratories, Nissan Chemical Corporation, 10-1 Tsuboi-Nishi 2-chome, Funabashi, Chiba, Japan.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|October 11, 2024
Summary
This study introduces a novel method for creating single-stranded DNA-encoded libraries (DELs) with 3' end compounds. This technique enhances DEL screening efficiency and signal-to-noise ratio for drug discovery.
Area of Science:
- Medicinal Chemistry
- Molecular Biology
- Drug Discovery
Background:
- DNA-encoded library (DEL) technology rapidly identifies bioactive compounds.
- Existing DEL methods have limitations in generating specific library formats.
Purpose of the Study:
- To develop a novel method for generating 3 eal-prime-end-functionalized single-stranded DNA-encoded libraries (ssDELs).
- To enhance the utility of DELs for photo-crosslinking applications.
Main Methods:
- Utilized hairpin-shaped headpieces (NC-HP) with deoxyuridine for dsDEL to ssDEL conversion.
- Employed a cleavage enzyme for efficient conversion.
- Incorporated Klenow fill-in to attach photo-crosslinkers to the coding region of dsDELs.
Main Results:
- Successfully generated ssDELs with compounds precisely at the 3' end.
- Developed dsDELs with durable photo-crosslinkers, showing high signal-to-noise ratios.
- Validated the method in cell-based photo-crosslinking selections.
Conclusions:
- The novel ssDEL generation method expands DEL capabilities for drug discovery.
- The photo-crosslinkable dsDELs offer robust and sensitive screening platforms.
- This approach facilitates efficient identification of target-binding compounds.
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