Abstract
The EPR spectra at low temperature (6 K) and their temperature dependence (10–93 K) for five ferric cytochromes c ′ isolated from chemoheterotrophic bacteria, Achromobacter xylosoxidans NCIB 11015 (formerly Alcaligenes sp. NCIB 11015), GIFU 543, GIFU 1048, GIFU 1051, and GIFU 1764 are reported. The EPR spectral results indicate that the ground state of the heme iron(III) of cytochromes c′ from these chemoheterotrophic bacteria can appear to be in an admixed spin state which consists of predominant S = 5 2 with a slight S = 3 2 character. The EPR spectra were compared with those for ferric cytochromes c ′ from photosynthetic bacteria and the other ferric hemoproteins.
Published Version
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