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. 1969 Nov;64(3):1079-86.
doi: 10.1073/pnas.64.3.1079.

The electron transport system in nitrogen fixation by Azotobacter. I. Azotoflavin as an electron carrier

J R Benemann, D C Yoch, R C Valentine, D I Arnon

The electron transport system in nitrogen fixation by Azotobacter. I. Azotoflavin as an electron carrier

J R Benemann et al. Proc Natl Acad Sci U S A. 1969 Nov.

Abstract

A flavoprotein, named azotoflavin, was isolated from an extract of Azotobacter vinelandii cells, which linked the reducing power generated by illuminated spinach chloroplasts to the Azotobacter nitrogen-fixing enzyme complex. The photoreduction of the yellow azotoflavin by chloroplasts produced a stable, free-radical semiquinone, blue in color, with properties similar to those described by other investigators for an Azotobacter flavoprotein of unknown biological function.

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References

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