A ligand field analysis of the spectroscopic differences between rubredoxin and desulforedoxin in the reduced state.
We propose a ligand field model to interpret the differences between the spectroscopic properties of reduced rubredoxin and desulforedoxin. The experimental data are well reproduced by using a common set of ligand field parameters and slightly different values of the mixing parameter theta for the two proteins. In this class of iron-sulfur clusters, the rhombic distortion could be modulated by variations of the S-Fe-S angles.
Bertrand
P
P
Laboratoire d'Electronique des Milieux Condensés, UA CNRS 784, Université de Provence, Marseille, France.
Gayda
J P
JP
D005288:Ferredoxins; D007506:Iron-Sulfur Proteins; D008024:Ligands; D008667:Metalloproteins; D010084:Oxidation-Reduction; D012416:Rubredoxins; D013057:Spectrum Analysis
D005288:Ferredoxins; D007506:Iron-Sulfur Proteins; D008024:Ligands; D008667:Metalloproteins; D012416:Rubredoxins; C022220:desulforedoxin