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Discriminatory power of the Binuclear Non-Heme Iron Active Site of delta-9 Desaturase


EMSL Project ID
50639

Abstract

We propose to use EMSL supercomputing resources to gain a molecular level understanding of how substrate binding, electron, and proton delivery are controlled by the desaturase metalloenzyme regioselective dehydrogenate long chain fatty acids. This research is a key component of the DOE Basic Energy Sciences Physical Biosciences program at PNNL, aimed at characterizing key biochemical and biophysical features of enzymatic processes and translate catalytic principles from enzymes’ activity to synthetic robust catalytic platforms. Specifically, we will (1) test reaction pathways, calculate structures and energy profiles for allylic alcohol formation, succeeding dehydrogenation, intermediates, and (2) characterize structural features and protein fluctuations during substrate recognition and positioning. Characterization of structural, dynamic and thermodynamic aspects of regioselective dehydrogenation and further oxidation by desaturase is expected to yield insights that will inform the development of functional biomimetic catalysts, which are more efficient and environmentally friendly than industrial processes currently in use.

Project Details

Start Date
2018-11-19
End Date
2019-09-30
Status
Closed

Team

Principal Investigator

Simone Raugei
Institution
Pacific Northwest National Laboratory

Team Members

Hoshin Kim
Institution
Pacific Northwest National Laboratory

Qi Huang
Institution
Pacific Northwest National Laboratory

Marcel Baer
Institution
Pacific Northwest National Laboratory