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Cited by 303

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Reversible conversion of nitroxyl anion to nitric oxide by superoxide dismutase.

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Murphy, M E, Sies, H·1991·Proceedings of the National Academy of Sciences

Abstract

Superoxide dismutase (SOD) rapidly scavenges superoxide (O2-) and also prolongs the vasorelaxant effects of nitric oxide (NO), thought to be the endothelium-derived relaxing factor. This prolongation has been ascribed to prevention of the reaction between O2- with NO. We report that SOD supports a reversible reduction of NO to NO-. When cyanamide and catalase were used to generate NO- in the presence of SOD, NO was measured by the conversion of HbO2 to MetHb. When SOD[Cu(I)] was exposed to NO anaerobically, NO- was trapped by MetHb forming nitrosylmyoglobin. When NO was generated by 3-morpholinosydnonimine hydrochloride in the presence of SOD, NO- or a similar reductant was formed, which reduced catalase compound II and promoted the formation of the catalase [Fe(III)]-NO complex. It is, therefore, conceivable that SOD may protect NO and endothelium-derived relaxing factor by a mechanism in addition to O2- scavenging and that NO- may be a physiologically important form of endothelium-derived relaxing factor.

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Metadata

Authors
Murphy, M. E., & Sies, H.
Venue
Proceedings of the National Academy of Sciences
Published
1991-12
Volume
88
Issue
23
Pages
10860-10864
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1975021973
Cited by
303
References
3
FWCI
8.19
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Reversible conversion of nitroxyl anion to nitric oxide by superoxide dismutase. https://app.cochat.ai/papers/10.1073/pnas.88.23.10860
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Murphy, M. E., & Sies, H. (1991). Reversible conversion of nitroxyl anion to nitric oxide by superoxide dismutase. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.88.23.10860

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