Evidence map›Paper›PMID 36788244›Full record

ArticleNature communications2023

A genome-wide CRISPR-Cas9 knockout screen identifies FSP1 as the warfarin-resistant vitamin K reductase.

Da-Yun Jin, Xuejie Chen, Yizhou Liu, Craig M Williams, Lars C Pedersen, Darrel W Stafford, Jian-Ke Tie

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
13.1field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

54 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Review
  3. CoQExperimental & molecular medicine · 2026
    Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Fueling Death: The Metabolic Control of Ferroptosis.Advances in experimental medicine and biology · 2026
    Review
  11. Review
  12. Review
  13. Review
  14. Article
  15. Decoding ferroptosis for cancer therapy.Nature reviews. Cancer · 2025
    Review
  16. Review
  17. Review
  18. Article
  19. Cocrystal structure reveals the mechanism of FSP1 inhibition by FSEN1.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Da-Yun JinBiology Department, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.ORCID 0000-0002-5148-4899
Xuejie ChenBiology Department, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.ORCID 0000-0001-8459-2557
Yizhou LiuSchool of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, QLD, 4072, Australia.ORCID 0000-0001-7456-4069
Craig M WilliamsSchool of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, QLD, 4072, Australia.ORCID 0000-0002-3834-7398
Lars C PedersenGenome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA.ORCID 0000-0002-4488-4077
Darrel W StaffordBiology Department, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.ORCID 0000-0001-6830-3874
Jian-Ke TieBiology Department, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA. jktie@email.unc.edu.ORCID 0000-0002-8447-3408
University of North Carolina at Chapel Hill · USThe University of Queensland · AUNational Institutes of Health · US

Funding

Crystallographic studies of macromolecular structuresZICES102645 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI PEDERSEN, LARS · 2018 to 2025
$12.6M
Crystallographic studies of macromolecular structuresZIAES102645 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI PEDERSEN, LARS · 2009 to 2017
$9.4M
Characterization of enzymes in the vitamin K cycleR01HL131690 · NHLBI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI STAFFORD, DARREL W, TIE, JIANKE · 2016 to 2023
$4.0M
Intramural NIH HHS ZIA ES102645NHLBI NIH HHS R01 HL131690
6 · The paper itself

Abstract

Vitamin K is a vital micronutrient implicated in a variety of human diseases. Warfarin, a vitamin K antagonist, is the most commonly prescribed oral anticoagulant. Patients overdosed on warfarin can be rescued by administering high doses of vitamin K because of the existence of a warfarin-resistant vitamin K reductase. Despite the functional discovery of vitamin K reductase over eight decades ago, its identity remained elusive. Here, we report the identification of warfarin-resistant vitamin K reductase using a genome-wide CRISPR-Cas9 knockout screen with a vitamin K-dependent apoptotic reporter cell line. We find that ferroptosis suppressor protein 1 (FSP1), a ubiquinone oxidoreductase, is the enzyme responsible for vitamin K reduction in a warfarin-resistant manner, consistent with a recent discovery by Mishima et al. FSP1 inhibitor that inhibited ubiquinone reduction and thus triggered cancer cell ferroptosis, displays strong inhibition of vitamin K-dependent carboxylation. Intriguingly, dihydroorotate dehydrogenase, another ubiquinone-associated ferroptosis suppressor protein parallel to the function of FSP1, does not support vitamin K-dependent carboxylation. These findings provide new insights into selectively controlling the physiological and pathological processes involving electron transfers mediated by vitamin K and ubiquinone.

Indexed as

Apoptosis Regulatory ProteinsNAD(P)H Dehydrogenase (Quinone)WarfarinAnticoagulantsCRISPR-Cas SystemsHumansMitochondrial ProteinsUbiquinoneVitamin KVitamin K Epoxide ReductasesAnticoagulantsApoptosis Regulatory Proteinsferroptosis suppressor protein 1, humanMitochondrial ProteinsNAD(P)H Dehydrogenase (Quinone)UbiquinoneVitamin KVitamin K Epoxide ReductasesWarfarin

Identifiers

PMID36788244
PMCPMC9929328
OpenAlexW4320725463

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.