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Ground-State Destabilization in Orotate Phosphoribosyltransferases by Binding Isotope Effects

Orotate phosphoribosyltransferases (OPRTs) form and break the N-ribosidic bond to pyrimidines by way of ribocation-like transition states (TSs) and therefore exhibit large α-secondary [1′-(3)H] k(cat)/K(m) kinetic isotope effects (KIEs). Substrate binding isotope effects (BIEs) with OPRTs report on...

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Bibliografiske detaljer
Main Authors: Zhang, Yong, Schramm, Vern L.
Format: Artigo
Sprog:Inglês
Udgivet: 2011
Fag:
Online adgang:https://ncbi.nlm.nih.gov/pmc/articles/PMC3101270/
https://ncbi.nlm.nih.gov/pubmed/21526795
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1021/bi200638x
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