Evidence map›Paper›PMID 26928591›Full record

ArticleBiochimica et biophysica acta2016

Peroxidase activation of cytoglobin by anionic phospholipids: Mechanisms and consequences.

Jesús Tejero, Alexandr A Kapralov, Matthew P Baumgartner, Courtney E Sparacino-Watkins, Tamil S Anthonymutu, Irina I Vlasova, Carlos J Camacho, Mark T Gladwin, Hülya Bayir, Valerian E Kagan

Abstract read
In one paragraph

Article in Biochimica et biophysica acta, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.8field-weighted citation impact, top 11% 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

22 citing papers in PubMed, 37 citations in OpenAlex.

  1. Cytochrome bFree radical biology & medicine · 2026
    Article
  2. CytochromebioRxiv : the preprint server for biology · 2025
    Article
  3. Article
  4. Study on peripheral antinociception induced by hydrogen peroxide (HNaunyn-Schmiedeberg's archives of pharmacology · 2024
    Article
  5. Insights into the function of cytoglobin.Biochemical Society transactions · 2023
    Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Cytoglobin has potent superoxide dismutase function.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  13. Article
  14. Article
  15. Review
  16. The Zebrafish CytochromeBiochemistry · 2019
    Article
  17. Review
  18. Review
  19. 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

10 authors at 1 institution in 1 country.

Jesús TejeroHeart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA; Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA. Electronic address: jet68@pitt.edu.
Alexandr A KapralovDepartment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15219, USA; Center for Free Radical and Antioxidant Health and Center for Medical Countermeasures against Radiation, University of Pittsburgh, Pittsburgh, PA 15219, USA.
Matthew P BaumgartnerDepartment of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA.
Courtney E Sparacino-WatkinsHeart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA; Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA.
Tamil S AnthonymutuCenter for Free Radical and Antioxidant Health and Center for Medical Countermeasures against Radiation, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Critical Care Medicine, Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA 15219, USA.
Irina I VlasovaDepartment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15219, USA; Center for Free Radical and Antioxidant Health and Center for Medical Countermeasures against Radiation, University of Pittsburgh, Pittsburgh, PA 15219, USA.
Carlos J CamachoDepartment of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA. Electronic address: ccamacho@pitt.edu.
Mark T GladwinHeart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA; Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA.
Hülya BayirDepartment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15219, USA; Center for Free Radical and Antioxidant Health and Center for Medical Countermeasures against Radiation, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Critical Care Medicine, Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA 15219, USA. Electronic address: bayihx@ccm.upmc.edu.
Valerian E KaganDepartment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15219, USA; Center for Free Radical and Antioxidant Health and Center for Medical Countermeasures against Radiation, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Radiation Oncology, University of Pittsburgh, Pittsburgh, PA 15219, USA. Electronic address: kagan@pitt.edu.
University of Pittsburgh · US

Funding

Training and EducationU19AI068021 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GREENBERGER, JOEL S · 2005 to 2019
$44.4M
Regulation of Cardiolin Byosynthesis in Epithelial InjuryP01HL114453 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI MALLAMPALLI, RAMA K · 2014 to 2023
$21.3M
Translational Training Program in Pulmonary Biology and MedicineT32HL007563 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Melanie Koenigshoff · 1985 to 2026
$12.3M
Mapping Lipid Oxidation in Traumatic Brain Injury by Mass Spectrometric ImagingR01NS076511 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Hülya Bayir, Valerian E Kagan · 2012 to 2026
$6.8M
Lipids and Myeloid Cell Function in CancerR01CA165065 · NCI · WISTAR INSTITUTE · PI KAGAN, VALERIAN E, MONTANER, LUIS J · 2012 to 2022
$3.8M
Oxidative Lipidomics in Pediatric Traumatic Brain InjuryR01NS061817 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BAYIR, HÜLYA · 2008 to 2018
$3.3M
Real-time discovery of inhibitors among billion compounds for preview and downloadR01GM097082 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CAMACHO, CARLOS J. · 2011 to 2020
$2.5M
Oxidative Lipidomics in Pediatric Traumatic Brain InjuryR37NS061817 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Hülya Bayir · 2021 to 2026
$2.2M
Oxygenated Species of Cardiolipins as Biomarkers of Mitochondrial DysfunctionR01ES020693 · NIEHS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KAGAN, VALERIAN E, TYURINA, YULIA Y · 2011 to 2015
$1.7M
NCI NIH HHS CA165065NCI NIH HHS R01 CA165065NHLBI NIH HHS P01 HL114453NHLBI NIH HHS T32 HL007563NIAID NIH HHS U19 AI068021NIAID NIH HHS U19AI068021NIEHS NIH HHS ES020693NIEHS NIH HHS R01 ES020693NIGMS NIH HHS GM097082NIGMS NIH HHS R01 GM097082NINDS NIH HHS NS061817NINDS NIH HHS NS076511NINDS NIH HHS R01 NS061817NINDS NIH HHS R01 NS076511NINDS NIH HHS R37 NS061817
6 · The paper itself

Abstract

Cytoglobin (Cygb) is a hexa-coordinated hemoprotein with yet to be defined physiological functions. The iron coordination and spin state of the Cygb heme group are sensitive to oxidation of two cysteine residues (Cys38/Cys83) and/or the binding of free fatty acids. However, the roles of redox vs lipid regulators of Cygb's structural rearrangements in the context of the protein peroxidase competence are not known. Searching for physiologically relevant lipid regulators of Cygb, here we report that anionic phospholipids, particularly phosphatidylinositolphosphates, affect structural organization of the protein and modulate its iron state and peroxidase activity both conjointly and/or independently of cysteine oxidation. Thus, different anionic lipids can operate in cysteine-dependent and cysteine-independent ways as inducers of the peroxidase activity. We establish that Cygb's peroxidase activity can be utilized for the catalysis of peroxidation of anionic phospholipids (including phosphatidylinositolphosphates) yielding mono-oxygenated molecular species. Combined with the computational simulations we propose a bipartite lipid binding model that rationalizes the modes of interactions with phospholipids, the effects on structural re-arrangements and the peroxidase activity of the hemoprotein.

Indexed as

Lipid PeroxidationAnionsCatalysisCysteineCytoglobinEnzyme ActivationGlobinsHumansHydrophobic and Hydrophilic InteractionsIronModels, BiologicalMolecular Dynamics SimulationOxidation-ReductionPeroxidasesPhospholipidsProtein ConformationAnionsCYGB protein, humanCysteineCytoglobinGlobinsIronPeroxidasesPhospholipidsRecombinant ProteinsCytoglobinLipid bindingPeroxidase activityPhosphatidylinositolphosphates

Identifiers

PMID26928591
PMCPMC4821708
OpenAlexW2283644734

What OpenQuestion holds

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Registered trials

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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.