Cited by 342Mitochondrial Function and PathologyNitric Oxide and Endothelin EffectsCoenzyme Q10 studies and effects

Nitrite reductase activity is a novel function of mammalian mitochondria

Open access
Kozlov, Andrey V, Staniek, Katrin, Nohl, Hans·1999·FEBS Letters

Abstract

Nitrite, which is the major stable degradation product of nitric oxide, exists in all tissues capable of nitric oxide synthesis from L‐arginine. The present study provides experimental evidence that nitrite in contact with respiring mitochondria accepts reducing equivalents from the ubiquinone cycle of the respiratory chain. Univalent reduction of nitrite was totally inhibited by myxothiazol. We therefore conclude on the involvement of redox cycling that ubisemiquinone is associated with the bc 1 complex. Recycling of nitric oxide degradation products via these electron carriers may become a threat to energy‐linked respiration since nitric oxide in direct contact with mitochondria was shown to slow the energy‐linked respiration down and to trigger a mitochondrial source for superoxide radicals. Until now, the existence of nitrite reductase activity was only demonstrated in plants and bacteria. In addition, the present observation elucidates the existence of a nitric oxide synthase‐independent nitric oxide source.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/s0014-5793(99)00788-7

Cites

14 of 14 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Under hypoxic conditions, when oxygen-dependent NO synthases may malfunction, nitrite reduction is greatly increased.

    “In situations of hypoxia, when the oxygen-dependent NO synthases may become dysfunctional, nitrite reduction is instead greatly enhanced.”

    From Nitrate and nitrite in biology, nutrition and therapeutics (2009) · cites this paper as [9]

    The Results (section 3; page unavailable) show nitrite-to-NO conversion under anaerobic conditions, and the Discussion (section 4; page unavailable) links this pathway to the lack of oxygen during ischemia. The paper does not establish that nitrite reduction is greatly increased relative to oxygenated conditions or state that NO synthases become dysfunctional under hypoxia. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Components of the respiratory chain can reduce nitrite to NO.

    “Sruti Shiva (University of Pittsburgh) reviewed a number of studies demonstrating that components of the respiratory chain can reduce nitrite to NO (refs. 4,9)”

    From Nitrate and nitrite in biology, nutrition and therapeutics (2009) · cites this paper as [9]

  • Cytochrome c oxidase is an important regulator of nitrite reduction to NO in the mitochondria.

    “This was later confirmed by Kozlov’s group who illustrated that cytochrome c oxidase was an important regulator of nitrite reduction to NO in the mitochondria [120, 121].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Graham, J.M. and Rickwood, D. (1997) Subcellular Fractiona- tion, p. 130, Oxford University Press, Oxford.

Cited by

Sorted by citations

Authors
Kozlov, A. V., Staniek, K., & Nohl, H.
Affiliations
University of Veterinary Medicine Vienna (AT)
Corresponding author
Nohl, Hans
Venue
FEBS Letters
Publisher
Wiley
Published
1999-07-02
Volume
454
Issue
1-2
Pages
127-130
ISSN
  • 0014-5793 (ISSN-L)
  • 1873-3468
OpenAlex
W2149980494
Cited by
342
References
14
Citations by year
2026: 2 · 2025: 3 · 2024: 5 · 2023: 4 · 2022: 8 · 2021: 4 · 2020: 9 · 2019: 15 · 2018: 11 · 2017: 16 · 2016: 14 · 2015: 22 · 2014: 15 · 2013: 9 · 2012: 17
FWCI
2.29
Type
journal article
Language
en
Open access
Locations
  • FEBS Letters (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Coenzyme Q10 studies and effects
Keywords
nitrite reductase, mitochondria, nitric oxide degradation, nitrite, bc1 complex, ubisemiquinone, myxothiazol, redox cycling, superoxide, electron transport chain
MeSH terms
Animals, Electron Spin Resonance Spectroscopy, Electron Transport, Liver, Mitochondria, Models, Biological, Nitric Oxide, Nitrite Reductases, Cell Respiration, Rats

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review