descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1973 English Publisher:Elsevier BVJournal:Biochemical and Biophysical Research Communications, volume 50, pages 321-327 (issn: 0006-291X,

Authors: H. Diehl; S.K. Erickson;

doi: 10.1016/0006-291x(73)90843-7

pmid: 4347517

The terminal oxidases of Azotobacter vinelandii

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Abstract

Abstract The terminal respiratory chain of the aerobic nitrogen-fixing bacterium Azotobacter vinelandii was investigated by photochemical action spectra. Terminal cytochrome oxidases a 2 , a 1 and o were confirmed as being the terminal oxidases for the physiological substrates NADH and L-malate. TMPD/ascorbate, not giving coupled phosphorylation uses cytochrome a 1 and possibly an o type. DCPIP/ascorbate, giving coupled phosphorylation uses neither cytochrome a 1 nor a 2 .

Related Organizations

University of Bremen
Germany
University of Leicester
United Kingdom

Keywords

Electron Transport Complex IV, Photochemistry, Spectrophotometry, Azotobacter, Ascorbic Acid, NAD, Oxidoreductases, Catechol Oxidase, Oxidative Phosphorylation

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