| Literature DB >> 27009873 |
He Tian1, Thomas P Sakmar2, Thomas Huber1.
Abstract
The cross-reactivity between some cyclooctynes and thiols limits the bioorthogonality of the strain-promoted azide-alkyne cycloaddition reaction. We show that a low concentration of β-mercaptoethanol significantly reduces the undesirable side reaction between bicyclononyne (BCN) and cysteine and while preserving free cysteines. We site-specifically label a genetically-encoded azido group in the visual photoreceptor rhodopsin to demonstrate the utility of the strategy.Entities:
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Year: 2016 PMID: 27009873 PMCID: PMC4824645 DOI: 10.1039/c6cc01321j
Source DB: PubMed Journal: Chem Commun (Camb) ISSN: 1359-7345 Impact factor: 6.222