8:30 AM
() Chair's Introduction. (Abstract )

8:40 AM
(S8A-1) Reversible redox energy coupling in electron transport chains. (Abstract 152)
Artur Osyczka¹, Christopher Moser ¹, Fevzi Daldal¹, Leslie Dutton^*,1, ¹ University of Pennsylvania, Philadelphia, Pennsylvania, USA

9:10 AM
(S8A-2) Cytochrome c₁ is a collapsed di-heme cytochrome. (Abstract 153)
Frauke Baymann^*,, Evelyne Lebrun, Wolfgang Nitschke,

9:30 AM
(S8A-3) Mutational analysis of the cytochrome bf rieske iron-sulfer protein and quinone-reductase site. (Abstract 154)
Yexin Ouyang¹, Richard Grebe¹, Lian-Wang Guo¹, Darryl Horn¹, Matthew Nelson¹, Giovanni Finazzi², Catherine de Vitry², Toivo Kallas^*,1, ¹ Department of Biology & Microbiology, Oshkosh, WI, USA² CNRS UPR 1261, Paris, France

9:50 AM
(S8A-4) Cytochrome b6 in redox regulation of the photosynthesis and chloroplast gene function. (Abstract 155)
Jörgen Ström^*,1, Jens Forsberg², Sujith Puthiyaveetil¹, John Allen¹, ¹ Plant Biochemistry, Lund University, Lund, Sweden² Medical Biochemistry and Microbiology, Uppsala, Sweden

10:10 AM
(S8A-5) Spectroscopic properties of heme x in the cytochrome b₆f complex. (Abstract 156)
Huamin Zhang¹, Micheal Bowman², David Kramer³, William Cramer¹, Jiusheng Yan^*,1, ¹ Purdue University, West Lafayette, IN, USA² Structural Biology and Microimaging, Richland, WA, USA³ Institute of Biological Chemistry, Pullman, WA, USA