Interaction between Cytochrome c2 and the Photosynthetic Reaction Center from Rhodobacter sphaeroides: Effects of Charge-Modifying Mutations on Binding and Electron Transfer
Abstract
The electrostatic interactions governing binding and electron transfer from cytochrome c(2) (cyt c(2)) to the reaction center (RC) from the photosynthetic bacteria Rhodobacter sphaeroides were studied by using site-directed mutagenesis to change the charges of residues on the RC surface. Charge-reversing mutations (acid --> Lys) decreased the binding affinity for cyt c(2). Dissociation constants, K(D) (0.3--250 microM), were largest for...
Paper Details
Title
Interaction between Cytochrome c2 and the Photosynthetic Reaction Center from Rhodobacter sphaeroides: Effects of Charge-Modifying Mutations on Binding and Electron Transfer
Published Date
Jun 27, 2001
Journal
Volume
40
Issue
29
Pages
8452 - 8462
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