Title

[4Fe4S]2+ clusters exhibit ground-state paramagnetism

Document Type

Article

Publication Date

5-11-2011

Abstract

Two proteins involved in nitrogen fixation contain ferredoxin-type [4Fe4S] clusters that exist in paramagnetic ground state upon oxidation, a property never observed since the discovery of ferredoxins 50 years ago. This unique characteristic suggests a specific coupling in these clusters necessary for nitrogen fixation and implies an evolutionary connection between the clusters in the two proteins.

Publication Source (Journal or Book title)

Journal of the American Chemical Society

First Page

6871

Last Page

3

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