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Updated: Aug 5, 2026
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Genetic Encoding of a Non-Canonical Amino Acid for the Generation of Antibody-Drug Conjugates Through a Fast Bioorthogonal Reaction
Published on: September 14, 2018
Cysteine Re-bridging Using Divinyl Pyrimidine Reagents for the Generation of Antibody-Drug Conjugates
Thomas Wharton1, Sona Krajcovicova1, David R Spring2
1Yusuf Hamied Department of Chemistry, Lensfield Road, Cambridge, CB2 1EW, UK.
Methods in Molecular Biology (Clifton, N.J.)
|August 1, 2026
Summary
Divinyl pyrimidine (DVP) reagents enable the creation of stable antibody-drug conjugates (ADCs) with a precise drug-to-antibody ratio (DAR). This method overcomes challenges in ADC production, enhancing targeted therapy potential.
Area of Science:
- Bioconjugation Chemistry
- Pharmaceutical Sciences
- Oncology Therapeutics
Background:
- Antibody-drug conjugates (ADCs) offer targeted drug delivery, improving therapeutic windows over small molecules.
- Challenges exist in producing stable, homogeneous ADCs with controlled drug-to-antibody ratios (DAR).
Purpose of the Study:
- To introduce and detail the use of divinyl pyrimidine (DVP) reagents for ADC synthesis.
- To establish a method for generating ADCs with a precise DAR of 4.
Main Methods:
- Irreversible conjugation of linker-payloads to native antibodies using DVP reagents.
- Characterization methods for the generated ADCs.
Main Results:
- Successful generation of stable ADCs and antibody-probe systems.
- Achieved a precise drug-to-antibody ratio (DAR) of 4 using DVP conjugation.
- Demonstrated a reliable protocol for DVP-mediated antibody conjugation.
Conclusions:
- DVP reagents provide a robust solution for creating homogeneous ADCs with controlled DAR.
- This method advances the development of targeted cancer therapies by improving ADC stability and precision.
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