Evidence map›Paper›PMID 22865876›Full record

ArticleCirculation research2012

Measurement of S-nitrosylation occupancy in the myocardium with cysteine-reactive tandem mass tags: short communication.

Mark J Kohr, Angel Aponte, Junhui Sun, Marjan Gucek, Charles Steenbergen, Elizabeth Murphy

Open access · bronzeAbstract read
In one paragraph

Article in Circulation research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 4% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 66 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Proteomics Research in Cardiovascular Medicine and Biomarker Discovery.Journal of the American College of Cardiology · 2016
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Mark J KohrLaboratory of Cardiac Physiology, Systems Biology Center, National Heart Lung and Blood Institute, Bethesda, MD 20892, USA.
Angel Aponte
Junhui Sun
Marjan Gucek
Charles Steenbergen
Elizabeth Murphy
Johns Hopkins University · US

Funding

Proteomics CoreZICHL005903 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI GUCEK, MARJAN · 2009 to 2022
$23.3M
Mechanisms of cardiac ischemia-reperfusion injury and cardioprotectionZIAHL002066 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI MURPHY, ELIZABETH · 2009 to 2025
$20.4M
Role of S-nitrosylation in regulating cardiac function and diseaseZIAHL006059 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI MURPHY, ELIZABETH · 2010 to 2025
$7.2M
ELEVATED CALCIUM AND MYOCARDIAL ISCHEMIC INJURYR01HL039752 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI STEENBERGEN, CHARLES · 1993 to 2019
$6.6M
S-Nitrosylation and CardioprotectionR00HL114721 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI KOHR, MARK JEFFREY · 2015 to 2017
$729k
Role of protein S-nitrosation in cardioprotectionF32HL096142 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI KOHR, MARK JEFFREY · 2009 to 2011
$144k
Intramural NIH HHS ZIA HL002066Intramural NIH HHS ZIA HL006059NHLBI NIH HHS 1F32HL096142NHLBI NIH HHS 5R01HL039752NHLBI NIH HHS F32 HL096142NHLBI NIH HHS R00 HL114721NHLBI NIH HHS R01 HL039752
6 · The paper itself

Abstract

rationaleS-nitrosylation (SNO) is a reversible, thiol-based protein modification that plays an important role in the myocardium by protecting critical cysteine residues from oxidation. However, little is known with regard to the percentage of a given protein that is modified by SNO (ie, SNO occupancy). Current methods allow for the relative quantification of SNO levels, but not for the determination of SNO occupancy.

objectiveTo develop a method for the measurement of SNO occupancy, and apply this methodology to determine SNO occupancy in the myocardium. METHODS AND

resultsWe developed a differential cysteinereactive tandem mass tag (cysTMT) labeling procedure for the measurement of SNO occupancy. To validate this cysTMT labeling method, we treated whole-heart homogenates with the S-nitrosylating agent S-nitrosoglutathione and determined maximal SNO occupancy. We also examined SNO occupancy under more physiological conditions and observed that SNO occupancy is low for most protein targets at baseline. Following ischemic preconditioning, SNO occupancy increased to an intermediate level compared to baseline and Snitrosoglutathione treatment, and this is consistent with the ability of SNO to protect against cysteine oxidation.

conclusionsThis novel cysTMT labeling approach provides a method for examining SNO occupancy in the myocardium. Using this approach, we demonstrated that IPC-induced SNO occupancy levels are sufficient to protect against oxidation.

Indexed as

AnimalsCysteineIschemic PreconditioningMaleMiceMice, Inbred C57BLMyocardial Reperfusion InjuryMyocardiumOxidation-ReductionPerfusionS-NitrosoglutathioneSulfhydryl CompoundsTandem Mass SpectrometryCysteineS-NitrosoglutathioneSulfhydryl Compounds

Identifiers

PMID22865876
PMCPMC3483371
OpenAlexW1757182810

What OpenQuestion holds

Textmetadata
LicenceTDM
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.