Potentiometric titration of the high- and low-potential 4Fe-4S* centers of Azotobacter vinelandii ferredoxin I.

Abstract:

:The high-potential 4Fe-4S* center ofAzotobacter vinelandii ferredoxin I has been titrated potentiometrically by a reductive procedure. The absorbance decrease at 510 nm accompanying the reduction of the high-potential center titrated with an Em of 320 mV (n = 1). The low-potential 4Fe-4S* center was titrated by using the absorbance decrease at 410 nm to monitor its reduction. This center exhibited an Em of -424 mV (n = 1).

journal_name

J Bacteriol

journal_title

Journal of bacteriology

authors

Yoch DC,Carithers RP

doi

10.1128/JB.136.2.822-824.1978

subject

Has Abstract

pub_date

1978-11-01 00:00:00

pages

822-4

issue

2

eissn

0021-9193

issn

1098-5530

journal_volume

136

pub_type

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