| Literature DB >> 12059194 |
Michelle L Kennedy1, Brian R Gibney.
Abstract
The coupling of a single proton to [4Fe-4S]2+/+ oxidation/reduction in a de novo designed iron-sulfur protein maquette is presented. The reduced state pKared is 9.3, and the oxidized state pKaox is <6.5. The reduced state pKared shifts to 8.3 upon incorporation of a [4Fe-4Se]2+/+ cluster, implicating the cluster itself or its primary coordination sphere as the proton-coupling site.Entities:
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Year: 2002 PMID: 12059194 DOI: 10.1021/ja0171613
Source DB: PubMed Journal: J Am Chem Soc ISSN: 0002-7863 Impact factor: 15.419