Evidence map›Paper›PMID 26085096›Full record

ArticleThe Journal of biological chemistry2015

Nitration of Hsp90 on Tyrosine 33 Regulates Mitochondrial Metabolism.

Maria C Franco, Karina C Ricart, Analía S Gonzalez, Cassandra N Dennys, Pascal A Nelson, Michael S Janes, Ryan A Mehl, Aimee Landar, Alvaro G Estévez

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.4field-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

23 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Nitration in cancer signaling.Redox biology · 2026
    Review
  3. Article
  4. Review
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  6. Small molecule probes for peroxynitrite detection.Redox biochemistry and chemistry · 2024
    Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Robust intrinsic differences in mitochondrial respiration and HAmerican journal of physiology. Cell physiology · 2019
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Review
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

9 authors at 4 institutions in 2 countries.

Maria C FrancoFrom the Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida 32827, mariaclara.franco@ucf.edu.
Karina C RicartDepartment of Pathology, University of Alabama at Birmingham, Birmingham, Alabama 35294.
Analía S GonzalezLaboratory of Oxygen Metabolism, University Hospital, University of Buenos Aires, Buenos Aires C1120AAR, Argentina.
Cassandra N DennysFrom the Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida 32827.
Pascal A NelsonFrom the Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida 32827.
Michael S JanesThermoFisher Scientific, Eugene, Oregon 97402, and.
Ryan A MehlDepartment of Biochemistry and Biophysics, Oregon State University, Corvallis, Oregon 97331.
Aimee LandarDepartment of Pathology, University of Alabama at Birmingham, Birmingham, Alabama 35294.
Alvaro G EstévezFrom the Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida 32827.
University of Central Florida · USUniversity of Alabama at Birmingham · USOregon State University · USUniversity of Buenos Aires · AR

Funding

Reducing Susceptibility to Environmental Stress Throughout the Life SpanP30ES000210 · NIEHS · OREGON STATE UNIVERSITY · PI BECKMAN, JOSEPH S · 1985 to 2015
$21.4M
Peroxynitrite, nitrotyrosine and HSP90 in neuronal deathR01NS036761 · NINDS · WINIFRED MASTERSON BURKE MED RES INST · PI ESTEVEZ, ALVARO G. · 1998 to 2014
$3.4M
Equipment supplement: Defining Roles Of NitroTyrosine In Disease Via Genetic Code ExpansionR01GM114653 · NIGMS · OREGON STATE UNIVERSITY · PI MEHL, RYAN A · 2015 to 2024
$2.6M
NIEHS NIH HHS P30 ES000210NIEHS NIH HHS P30 ES00210NIGMS NIH HHS R01 GM114653NINDS NIH HHS NS36761NINDS NIH HHS R01 NS036761
6 · The paper itself

Abstract

Peroxynitrite production and tyrosine nitration are present in several pathological conditions, including neurodegeneration, stroke, aging, and cancer. Nitration of the pro-survival chaperone heat shock protein 90 (Hsp90) in position 33 and 56 induces motor neuron death through a toxic gain-of-function. Here we show that nitrated Hsp90 regulates mitochondrial metabolism independently of the induction of cell death. In PC12 cells, a small fraction of nitrated Hsp90 was located on the mitochondrial outer membrane and down-regulated mitochondrial membrane potential, oxygen consumption, and ATP production. Neither endogenous Hsp90 present in the homogenate nor unmodified and fully active recombinant Hsp90 was able to compete with the nitrated protein for the binding to mitochondria. Moreover, endogenous or recombinant Hsp90 did not prevent the decrease in mitochondrial activity but supported nitrated Hsp90 mitochondrial gain-of-function. Nitrotyrosine in position 33, but not in any of the other four tyrosine residues prone to nitration in Hsp90, was sufficient to down-regulate mitochondrial activity. Thus, in addition to induction of cell death, nitrated Hsp90 can also regulate mitochondrial metabolism, suggesting that depending on the cell type, distinct Hsp90 nitration states regulate different aspects of cellular metabolism. This regulation of mitochondrial homeostasis by nitrated Hsp90 could be of particular relevance in cancer cells.

Indexed as

Protein Processing, Post-TranslationalAdenosine TriphosphateAnimalsEnergy MetabolismHSP90 Heat-Shock ProteinsMitochondriaPC12 CellsProtein TransportRatsTyrosine3-nitrotyrosineAdenosine TriphosphateHSP90 Heat-Shock ProteinsTyrosineenergy metabolismheat shock protein 90 (Hsp90)mitochondriaperoxynitritereactive nitrogen species (RNS)redox signalingtyrosine nitration

Identifiers

PMID26085096
PMCPMC4521030
OpenAlexW1493337030

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.