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Kinetic isotope effects in Ras-catalyzed GTP hydrolysis: Evidence for a loose transition state

A remote labeling method has been developed to determine (18)O kinetic isotope effects (KIEs) in Ras-catalyzed GTP hydrolysis. Substrate mixtures consist of (13)C-depleted GTP and [(18)O,(13)C]GTP that contains (18)O at phosphoryl positions of mechanistic interest and (13)C at all carbon positions o...

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Dettagli Bibliografici
Pubblicato in:Proc Natl Acad Sci U S A
Autori principali: Du, Xinlin, Black, Gavin E., Lecchi, Paolo, Abramson, Fred P., Sprang, Stephen R.
Natura: Artigo
Lingua:Inglês
Pubblicazione: National Academy of Sciences 2004
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Accesso online:https://ncbi.nlm.nih.govhttps://pmc.ncbi.nlm.nih.gov/articles/PMC428437/
https://ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/15178760/
https://ncbi.nlm.nih.govhttps://doi.org/10.1073/pnas.0401675101
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