Biology Department Seminar

"X-Ray Crystallographic Studies of Cytochrome c Oxidase, the Energy Generator of Cells"

Presented by Ling Qin, Biochemistry and Molecular Biology Department, Michigan State University, East Lansing, MI

Friday, July 25, 2008, 11:00 am — John Dunn Seminar Room, Bldg. 463

Cytochrome c oxidase, a multi-subunit transmembrane protein complex, catalyzes the reaction vital in energy production by reducing oxygen to water, while translocating protons across the membrane to help build the electro-chemical gradient utilized for direct ATP synthesis. Crystal structures of a bacterial cytochrome c oxidase at different redox states, as well as various liganded forms and site-directed mutants were solved. Insights were gained on its catalytic mechanism and modes of regulation, as well as on general features of interactions between membrane proteins and their lipid environment.

Hosted by: Allen Orville

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