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Mechanisms and energetics of free radical initiated disulfide bond cleavage in model peptides and insulin by mass spectrometry

We investigate the mechanism of disulfide bond cleavage in gaseous peptide and protein ions initiated by a covalently-attached regiospecific acetyl radical using mass spectrometry (MS). Highly selective S–S bond cleavages with some minor C–S bond cleavages are observed by a single step of collisiona...

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Detalhes bibliográficos
Publicado no:Chem Sci
Main Authors: Sohn, Chang Ho, Gao, Jinshan, Thomas, Daniel A., Kim, Tae-Young, Goddard III, William A., Beauchamp, J. L.
Formato: Artigo
Idioma:Inglês
Publicado em: Royal Society of Chemistry 2015
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Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC5666513/
https://ncbi.nlm.nih.gov/pubmed/29142703
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1039/c5sc01305d
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