Evidence map›Paper›PMID 23082934›Full record

ArticleJournal of proteome research2012

Evaluation of database search programs for accurate detection of neuropeptides in tandem mass spectrometry experiments.

Malik N Akhtar, Bruce R Southey, Per E Andrén, Jonathan V Sweedler, Sandra L Rodriguez-Zas

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Journal of proteome research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Limitations of Mass Spectrometry-Based Peptidomic Approaches.Journal of the American Society for Mass Spectrometry · 2015
    Pooled it
  2. Review
  3. Article
  4. Article
  5. Origins, Technological Advancement, and Applications of Peptidomics.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  6. Review
  7. Article
  8. The language of proteins: NLP, machine learning & protein sequences.Computational and structural biotechnology journal · 2021
    Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. 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.

Malik N AkhtarDepartment of Animal Sciences, University of Illinois Urbana-Champaign, Illinois 61801, United States.
Bruce R Southey
Per E Andrén
Jonathan V Sweedler
Sandra L Rodriguez-Zas

Funding

The UIUC Neuroproteomics Center on Cell-Cell SignalingP30DA018310 · NIDA · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI Elena V Romanova · 2004 to 2026
$24.9M
Integration of resources and studies to elucidate neuropeptide signalingR21DA027548 · NIDA · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI RODRIGUEZ ZAS, SANDRA L · 2009 to 2012
$961k
NIDA NIH HHS P30 DA018310NIDA NIH HHS P30DA018310NIDA NIH HHS R21 DA027548NIDA NIH HHS R21DA027548
6 · The paper itself

Abstract

Neuropeptide identification in mass spectrometry experiments using database search programs developed for proteins is challenging. Unlike proteins, the detection of the complete sequence using a single spectrum is required to identify neuropeptides or prohormone peptides. This study compared the performance of three open-source programs used to identify proteins, OMSSA, X!Tandem and Crux, to identify prohormone peptides. From a target database of 7850 prohormone peptides, 23550 query spectra were simulated across different scenarios. Crux was the only program that correctly matched all peptides regardless of p-value and at p-value<1×10(-2), 33%, 64%, and >75%, of the 5, 6, and ≥7 amino acid-peptides were detected. Crux also had the best performance in the identification of peptides from chimera spectra and in a variety of missing ion scenarios. OMSSA, X!Tandem and Crux correctly detected 98.9% (99.9%), 93.9% (97.4%) and 88.7% (98.3%) of the peptides at E- or p-value<1×10(-6) (<1×10(-2)), respectively. OMSSA and X!Tandem outperformed the other programs in significance level and computational speed, respectively. A consensus approach is not recommended because some prohormone peptides were only identified by one program.

Indexed as

Databases, ProteinSoftwareAlgorithmsAmino Acid SequenceAnimalsComputational BiologyComputer SimulationIonsMiceNeuropeptidesProteomicsReproducibility of ResultsSearch EngineSensitivity and SpecificityTandem Mass SpectrometryTime FactorsIonsNeuropeptides

Identifiers

PMID23082934
PMCPMC3516866

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.