The DOI matches its Crossref record.
Reactions of nitric oxide with cytochrome c oxidase
Abstract
The reactions of nitric oxide (NO) with both oxidized and reduced cytochrome c oxidase are reported. NMR and mass spectroscopy were utilized to determine the products of the reactions; EPR and optical spectroscopy were employed to determine the states of the enzyme produced in each of these reactions. It was found that the enzyme catalyzes the consecutive oxidation and reduction of NO. A different cycle was observed when NO was added to the reduced enzyme, to the oxidized enzyme, or to the oxidized enzyme in the presence of azide. It was possible to observe the state of the enzyme at several points in each of these three cycles by varying the concentration of NO. The reactions of NO all involved a one- or two-electron redox step and could be accounted for by the involvement of only cytochrome a3 and Cua3. On the basis of these results, a mechanism for the reduction of dioxygen by the enzyme is proposed in which cytochrome a3 functions to anchor dioxygen and intermediates while remaining in the ferrous state, whereas Cua3 functions to accept electroins from cytochrome a/Cua and transfer them to dioxygen.
Overview
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.
Integrity signals
Registry
Cites
Statistics
Verification
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.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Brown, G. C., & Cooper, C. E. (1994) · FEBS Letters · doi:10.1016/0014-5793(94)01290-3 · Cited by 1,055
Nitric oxide and mitochondrial respiration
Brown, G. C. (1999) · Biochimica et Biophysica Acta (BBA) - Bioenergetics · doi:10.1016/s0005-2728(99)00025-0 · Cited by 702
Regulation of mitochondrial respiration by nitric oxide inhibition of cytochrome c oxidase
Brown, G. C. (2001) · Biochimica et Biophysica Acta (BBA) - Bioenergetics · doi:10.1016/s0005-2728(00)00238-3 · Cited by 602
Berks, B. C., Ferguson, S. J., Moir, J. W. B., & Richardson, D. J. (1995) · Biochimica et Biophysica Acta (BBA) - Bioenergetics · doi:10.1016/0005-2728(95)00092-5 · Cited by 596
Richardson, D. J. (2000) · Microbiology · doi:10.1099/00221287-146-3-551 · Cited by 544
Metadata
- Authors
- Brudvig, G. W., Stevens, T. H., & Chan, S. I.
- Venue
- Biochemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 1980-11-11
- Volume
- 19
- Issue
- 23
- Pages
- 5275-5285
- ISSN
- 0006-2960 (ISSN-L)
- 1520-4995
- OpenAlex
- W2062050293
- Cited by
- 237
- References
- 0
- FWCI
- 9.00
- Type
- journal article
- Language
- en
- Open access
- closed
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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Reactions of nitric oxide with cytochrome c oxidase. https://app.cochat.ai/papers/10.1021/bi00564a020
- The paper
- Brudvig, G. W., Stevens, T. H., & Chan, S. I. (1980). Reactions of nitric oxide with cytochrome c oxidase. Biochemistry. https://doi.org/10.1021/bi00564a020
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
