Evidence map›Paper›PMID 21204522›Full record

ArticleJournal of proteome research2011

Peptidomic analysis of human cell lines.

Julia S Gelman, Juan Sironi, Leandro M Castro, Emer S Ferro, Lloyd D Fricker

Open access · greenAbstract read
In one paragraph

Article in Journal of proteome research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 citations in OpenAlex.

  1. Limitations of Mass Spectrometry-Based Peptidomic Approaches.Journal of the American Society for Mass Spectrometry · 2015
    Pooled it
  2. Quantitative Peptidomics Using Reductive Methylation of Amines.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  3. Peptidomics of Zebrafish Brain in a 6-OHDA-Induced Neurodegeneration Model.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  4. Quantitative Peptidomics: General Considerations.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Discovery of Missing Methylation Sites on Endogenous Peptides of Human Cell Lines.Journal of the American Society for Mass Spectrometry · 2019
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. Quantitative Peptidomics with Five-plex Reductive Methylation labels.Journal of the American Society for Mass Spectrometry · 2018
    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

5 authors at 2 institutions in 1 country.

Julia S GelmanDepartment of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461, United States.
Juan Sironi
Leandro M Castro
Emer S Ferro
Lloyd D Fricker
Universidade de São Paulo · BRUniversidade Federal de São Paulo · BR

Funding

REGULATION OF ENKEPHALIN CONVERTASE--CARBOXYPEPTIDASE ER01DA004494 · NIDA · YESHIVA UNIVERSITY · PI FRICKER, LLOYD D · 1987 to 2015
$5.9M
NIDA NIH HHS DA-04494NIDA NIH HHS R01 DA004494
6 · The paper itself

Abstract

Peptides have been proposed to function in intracellular signaling within the cytosol. Although cytosolic peptides are considered to be highly unstable, a large number of peptides have been detected in mouse brain and other biological samples. In the present study, we evaluated the peptidome of three diverse cell lines: SH-SY5Y, MCF7, and HEK293 cells. A comparison of the peptidomes revealed considerable overlap in the identity of the peptides found in each cell line. The majority of the observed peptides are not derived from the most abundant or least stable proteins in the cell, and approximately half of the cellular peptides correspond to the N- or C- termini of the precursor proteins. Cleavage site analysis revealed a preference for hydrophobic residues in the P1 position. Quantitative peptidomic analysis indicated that the levels of most cellular peptides are not altered in response to elevated intracellular calcium, suggesting that calpain is not responsible for their production. The similarity of the peptidomes of the three cell lines and the lack of correlation with the predicted cellular degradome implies the selective formation or retention of these peptides, consistent with the hypothesis that they are functional in the cells.

Indexed as

AnimalsCell LineHumansMicePeptidesProteinsProteomePeptidesProteinsProteome

Identifiers

PMID21204522
PMCPMC3070057
OpenAlexW2002697163

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.