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Solution-state NMR studies of catalytic intermediates of [Fe-Fe]-hydrogenase.


EMSL Project ID
50630

Abstract

The goal of this research proposal is to establish concrete design principles that define and control efficient proton (H+) transport for [FeFe]-hydrogenase (H2ase). Proteins are able to perform remarkably efficient spatial and temporal delivery of H+s with the use of precisely controlled H+ pathways. These pathways are formed by a series of H+ relays, functional groups capable of accepting and donating H+s. In spite of the broad need for understanding H+ transfer at a molecular level, mechanistic design principles for H+ transport are not well formulated. The proposed work will use a H2ase to understand H+ transport for this enzyme and will contribute a deeper mechanistic understanding for the control of H+-coupled electron transfer that can be expanded to other enzyme systems.

Project Details

Start Date
2018-11-26
End Date
2019-09-30
Status
Closed

Team

Principal Investigator

Garry Buchko
Institution
Pacific Northwest National Laboratory

Team Members

John Peters
Institution
Washington State University

Wendy Shaw
Institution
Pacific Northwest National Laboratory