Axial coordination and reduction potentials of the sixteen hemes in high-molecular-mass cytochrome c from Desulfovibrio vulgaris (Hildenborough).

@article{Verhagen1994AxialCA,
  title={Axial coordination and reduction potentials of the sixteen hemes in high-molecular-mass cytochrome c from Desulfovibrio vulgaris (Hildenborough).},
  author={Marc F. J. M. Verhagen and Antonio J. Pierik and R. B. G. Wolbert and L F Mall{\'e}e and Wilfried G. B. Voorhorst and Wilfred R. Hagen},
  journal={European journal of biochemistry},
  year={1994},
  volume={225 1},
  pages={
          311-9
        }
}
A spectroelectrochemical study is described of the sixteen hemes in the high-molecular-mass, monomeric cytochrome c (Hmc) from the periplasmic space of Desulfovibrio vulgaris, strain Hildenborough. One of the hemes has special properties. In the oxidized state at pH 7 it is predominantly high-spin, S = 5/2, with a g perpendicular value of less than 6 indicative of quantum-mechanical mixing with a low-lying (800 cm-1) S = 3/2 state; the balance is probably a low-spin derivative. The high-spin… CONTINUE READING

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