Description
N-(Methyltetrazine-PEG4)-N-biotin-PEG4-acid is a branched biotinylation reagent featuring a methyltetrazine moiety, a biotin group, and a carboxylic acid functionality. This versatile compound facilitates copper-free click chemistry reactions, particularly with trans-cyclooctene (TCO) reactive reagents. The inverse-electron demand Diels-Alder cycloaddition reaction between TCO and tetrazines is known for its rapid kinetics and outstanding selectivity, making it an ideal tool for bioorthogonal conjugation.
Applications
N-(Methyltetrazine-PEG4)-N-biotin-PEG4-acid is widely employed in bioconjugation and chemical biology studies. Its ability to selectively react with TCO-functionalized molecules via- click chemistry enables efficient labeling of biomolecules without the need for copper catalysts, minimizing non-specific binding and cellular toxicity. This reagent is particularly valuable for the site-specific attachment of biotin tags to proteins, nucleic acids, and other biomolecules of interest, facilitating downstream applications such as affinity purification, protein detection, and cellular imaging.