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Updated: Jun 23, 2026

Monitoring the Reductive and Oxidative Half-Reactions of a Flavin-Dependent Monooxygenase using Stopped-Flow Spectrophotometry
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Structural and functional insights into sulfide:quinone oxidoreductase

José A Brito1, Filipa L Sousa, Meike Stelter

  • 1Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República EAN, 2780-157 Oeiras, Portugal.

Biochemistry
|May 15, 2009
PubMed
Summary

Researchers characterized the first X-ray structure of sulfide:quinone oxidoreductase (SQR) from Acidianus ambivalens. The structure reveals a unique sulfur chain, offering insights into sulfide oxidation and bioenergetics in this archaeon.

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