Evidence map›Paper›PMID 21394845›Full record

ArticleJournal of mass spectrometry : JMS2011

A mass spectrometric analysis of 4-hydroxy-2-(E)-nonenal modification of cytochrome c.

Xiaoxia Tang, Lawrence M Sayre, Gregory P Tochtrop

Abstract read
In one paragraph

Article in Journal of mass spectrometry : JMS, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
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

10 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
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  10. 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

3 authors.

Xiaoxia TangDepartment of Chemistry, Case Western Reserve University, Cleveland, OH 44106, USA.
Lawrence M Sayre
Gregory P Tochtrop

Funding

SULFHYDRYL STATUS IN THE AGING HEART: ROLE OF GLUTAREDOXINP01AG015885 · NIA · CASE WESTERN RESERVE UNIVERSITY · PI HOPPEL, CHARLES LESLIE · 1998 to 2008
$8.1M
MOLECULAR BASIS OF OXIDATIVE MODIFICATION OF LDLR01HL053315 · NHLBI · CASE WESTERN RESERVE UNIVERSITY · PI SALOMON, ROBERT GERD · 1996 to 2010
$3.4M
Triterpenoid Modulators of Inflammatory Driven CarcinogenesisR01CA157735 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI TOCHTROP, GREGORY P · 2011 to 2015
$1.5M
CYTOSKELETAL OXIDATIVE MODIFICATIONSR01AG014249 · NIA · CASE WESTERN RESERVE UNIVERSITY · PI ANDERSON, VERNON E. · 1997 to 2004
$1.3M
NCI NIH HHS R01 CA157735NHLBI NIH HHS HL53315NHLBI NIH HHS R01 HL053315NIA NIH HHS AG14249NIA NIH HHS AG15885NIA NIH HHS P01 AG015885NIA NIH HHS R01 AG014249
6 · The paper itself

Abstract

Cytochrome c is a key mitochondrial respiratory protein that is particularly susceptible to modification during oxidative stress. The nature of this susceptibility is linked to the mitochondrial membrane being rich in esterified linoleic acid, which predisposes this organelle to the formation of lipid peroxidation products such as 4-hydroxy-2-(E)-nonenal (4-HNE). To better understand the nature of cytochrome c modification by 4-HNE, we initiated an in vitro study utilizing a combination of MALDI-TOF mass spectrometry, LC-ESI-MS/MS and isotope labeling to monitor 4-HNE modification of cytochrome c under various conditions. The overwhelming reaction observed is Michael addition by Lys side-chains in addition to the modification of His 33. While the Lys-4-HNE adducts were generally observed to be reversible, the 4-HNE-His 33 was observed to be stable with half of the formed adduct surviving the denaturation and proteolysis protocols used to generate proteolytic peptides for LC-ESI-MS/MS.

Indexed as

AldehydesAmino Acid SequenceAnimalsChromatography, LiquidCytochromes cHorsesPeptide FragmentsProtein StabilitySpectrometry, Mass, Electrospray IonizationSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationTandem Mass SpectrometryTrypsin4-hydroxy-2-nonenalAldehydesCytochromes cPeptide FragmentsTrypsin

Identifiers

PMID21394845
PMCPMC3903654

What OpenQuestion holds

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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.