Secondary kinetic isotope effects as probes of environmentally-coupled enzymatic hydrogen tunneling reactions
Hay, Sam, Pang, Jiayun ORCID: https://orcid.org/0000-0003-0689-8440, Monaghan, Phillip J., Wang, Xi, Evans, Rhiannon M., Sutcliffe, Michael J., Allemann, Rudolf K. and Scrutton, Nigel S.
(2008)
Secondary kinetic isotope effects as probes of environmentally-coupled enzymatic hydrogen tunneling reactions.
ChemPhysChem, 9 (11).
pp. 1536-1539.
ISSN 1439-4235 (Print), 1439-7641 (Online)
(doi:10.1002/cphc.200800291)
Abstract
The secondary kinetic isotope effect for hydride transfer from NADPH to dihydrofolate catalyzed by dihydrofolate reductase (see traces) is neither temperature dependent nor exalted. In environmentally coupled models of H-tunneling, the secondary isotope effects do not report on promoting motions, but reflect the active site geometry attained immediately prior to H transfer (i.e. the ‘tunnelling ready configuration′).
Item Type: | Article |
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Additional Information: | [1] Journal published on behalf of ChemPubSoc Europe. |
Uncontrolled Keywords: | secondary kinetic isotope effect, hydrogen transfer, dihydrofolate reductase |
Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
Faculty / School / Research Centre / Research Group: | Faculty of Engineering & Science Faculty of Engineering & Science > School of Science (SCI) |
Related URLs: | |
Last Modified: | 15 Nov 2021 23:47 |
URI: | http://gala.gre.ac.uk/id/eprint/10616 |
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