Article
Protein influence on charge-asymmetry of the primary donor in photosynthetic bacterial reaction centers containing a heterodimer: effects on photophysical properties and electron transfer.
The journal of physical chemistry. B - 18 Apr 2013
Harris Michelle A, Luehr Craig A, Faries Kaitlyn M, Wander Marc, Kressel Lucas, Holten Dewey, Hanson Deborah K, Laible Philip D, Kirmaier Christine
Abstract excerpt
The substantial electronic distinctions between bacteriochlorophyll (BChl) and its Mg-free analogue bacteriopheophytin (BPh) are exploited in two sets of Rhodobacter capsulatus reaction center (RC) mutants that contain a heterodimeric BChl-BPh primary electron donor (D). The BPh component of the M-heterodimer (Mhd) or L-heterodimer (Lhd) obtains from substituting a Leu for His M200 or for His L173, respectively....
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