Cited by 602Nitric Oxide and Endothelin EffectsAntioxidant Activity and Oxidative StressLipid Membrane Structure and Behavior

Accelerated reaction of nitric oxide with O 2 within the hydrophobic interior of biological membranes

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Liu, Xiaoping, Miller, Mark J. S., Joshi, Mahesh S., Thomas, Douglas D., Lancaster, Jack R.·1998·Proceedings of the National Academy of Sciences

Abstract

We demonstrate herein dramatic acceleration of aqueous nitric oxide (NO) reaction with O2 within the hydrophobic region of either phospholipid or biological membranes or detergent micelles and demonstrate that the presence of a distinct hydrophobic phase is required. Per unit volume, at low amounts of hydrophobic phase, the reaction of NO with O2 within the membranes is approximately 300 times more rapid than in the surrounding aqueous medium. In tissue, even though the membrane represents only 3% of the total volume, we calculate that 90% of NO reaction with O2 will occur there. We conclude that biological membranes and other tissue hydrophobic compartments are important sites for disappearance of NO and for formation of NO-derived reactive species and that attenuation of these potentially damaging reactions is an important protective action of lipid-soluble antioxidants such as vitamin E.

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Crossref · 10.1073/pnas.95.5.2175

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  • HS- is a powerful nucleophile, exceeded only by hydrazine.

    “While H2S itself is relatively unreactive, the thiolate ion (HS -) is a powerful nucleophile [36], exceeded only by hydrazine (H2N-NH2), which is a 'super nucleophile' because of the α-effect [39].”

    From On the chemical biology of the nitrite/sulfide interaction (2015) · cites this paper as [36]

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Authors
Liu, X., Miller, M. J. S., Joshi, M. S., Thomas, D. D., & Lancaster, J. R.
Affiliations
Louisiana State University (US)
Venue
Proceedings of the National Academy of Sciences
Published
1998-03-03
Volume
95
Issue
5
Pages
2175-2179
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2077103811
Cited by
602
References
33
Citations by year
2026: 2 · 2025: 6 · 2024: 7 · 2023: 7 · 2022: 13 · 2021: 13 · 2020: 12 · 2019: 16 · 2018: 13 · 2017: 13 · 2016: 15 · 2015: 15 · 2014: 21 · 2013: 22 · 2012: 31
FWCI
18.23
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (7r01hd031885-06)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK36935, R01DK046935)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD-31885)
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Lipid Membrane Structure and Behavior
Keywords
nitric oxide, biological membranes, phospholipid membranes, detergent micelles, lipid-soluble antioxidants, vitamin E, nitric oxide scavenging
MeSH terms
Animals, Cell Fractionation, Cell Membrane, Detergents, Kinetics, Liver, Membrane Lipids, Micelles, Models, Chemical, Nitric Oxide, Oxidation-Reduction, Oxygen, Rats

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