Article
Electron transfer in cyanobacterial photosystem I: I. Physiological and spectroscopic characterization of site-directed mutants in a putative electron transfer pathway from A0 through A1 to FX.
The Journal of biological chemistry - 25 Jul 2003
Xu Wu, Chitnis Parag, Valieva Alfia, van der Est Art, Pushkar Yulia N, Krzystyniak Maciej, Teutloff Christian, Zech Stephan G, Bittl Robert, Stehlik Dietmar, Zybailov Boris, Shen Gaozhong, Golbeck John H
Abstract excerpt
The Photosystem I (PS I) reaction center contains two branches of nearly symmetric cofactors bound to the PsaA and PsaB heterodimer. From the x-ray crystal structure it is known that Trp697PsaA and Trp677PsaB are pi-stacked with the head group of the phylloquinones and are H-bonded to Ser692PsaA and Ser672PsaB, whereas Arg694PsaA and Arg674PsaB are involved in a H-bonded network of side groups that connects the...
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