Chemistry

Scientists create radioactive tracking labels on proteins for drug development

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Researchers developed a method to incorporate radioactive carbon-14 and tritium isotopes into lysine amino acid residues of peptides at a late stage of synthesis using hydroformylation chemistry. This technique allows for the conversion of allylglycine residues in peptides into radiolabeled lysine through a catalytic process involving carbon monoxide and hydrogen gas. The method provides a new route for creating radiolabeled peptides without requiring synthesis from scratch, enabling better tracking and analysis of peptide-based drugs in biological systems.


This advancement simplifies the production of radiolabeled peptides used in pharmaceutical research, particularly for studying drug metabolism, distribution, and pharmacokinetics. The ability to add radioactive labels at late stages of peptide synthesis could reduce costs and time in drug development, especially for peptide therapeutics that are increasingly important in modern medicine.


Source: Late-stage generation of 14C/3H-radiolabeled lysine residues via hydroformylation of peptides