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. 1980 Sep 1;189(3):641–644. doi: 10.1042/bj1890641

Formation of super-reduced Chromatium high-potential iron--sulphur protein in aqueous solution by pulse radiolysis.

J Butler, A G Sykes, G V Buxton, P C Harrington, R G Wilkins
PMCID: PMC1162045  PMID: 7213348

Abstract

Both the oxidized and reduced forms of Hipip (high-potential iron--sulphur protein) are reduced (approx. 30% yields) by eaq.- in a single-stage process, rate constants 1.7 x 10(10) and 1.8 x 10(10) M-1 . s-1 respectively, at 25 degrees C, pH 7.0 (5 mM-phosphate). Super-reduced Hipip, which is formed in the latter case, has a spectrum which closely resembles that of reduced ferredoxin, i.e. Fe4S4 (SR)4(3-) clusters. The spectrum is stable over 2 s periods investigated. Super-reduced Hipip is reoxidized with O2, rate constant 4.8 x 10(6) M-1 . s-1 at 25 degrees C.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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