Azotobacter vinelandii ferredoxin I. Aspartate 15 facilitates proton transfer to the reduced [3Fe-4S] cluster.

Azotobacter vinelandii ferredoxin I. Aspartate 15 facilitates proton transfer to the reduced [3Fe-4S] cluster.

The [3Fe-4S]+/0 cluster of Azotobacter vinelandii ferredoxin I (AvFdI) has an unusually low and strongly pH-dependent reduction potential (E'0). The reduced cluster exists in two forms, depending upon pH, that exhibit substantially different magnetic circular dichroism (MCD) spectra. Recent stu...

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Bibliographic Details
Main Authors:	Shen, B, Martin, L, Butt, J, Armstrong, F, Stout, C, Jensen, G, Stephens, P, La Mar, G, Gorst, C, Burgess, B
Format:	Journal article
Language:	English
Published:	1993

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