Evidence map›Paper›PMID 24225996›Full record

ArticleJournal of the American Society for Mass Spectrometry1993

Selective detection of phosphopeptides in complex mixtures by electrospray liquid chromatography/mass spectrometry.

M J Huddleston, R S Annan, M F Bean, S A Carr

Abstract read
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In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
8.2field-weighted citation impact, top 1% 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

40 citing papers in PubMed, 242 citations in OpenAlex.

  1. Article
  2. Multimodal Tandem Mass Spectrometry Techniques for the Analysis of Phosphopeptides.Journal of the American Society for Mass Spectrometry · 2022
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Functional phosphoproteomic mass spectrometry-based approaches.Clinical and translational medicine · 2012
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Tandem mass spectrometry investigation of ADP-ribosylated kemptide.Journal of the American Society for Mass Spectrometry · 2009
    Article
  16. Article
  17. Atmospheric pressure thermal dissociation of phospho- and sulfopeptides.Journal of the American Society for Mass Spectrometry · 2008
    Article
  18. Article
  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

4 authors at 1 institution in 1 country.

M J HuddlestonDepartment of Physical and Structural Chemistry, SmithKline Beecham Pharmaceuticals, Box 1539, 19406, King of Prussia, PA.
R S Annan
M F Bean
S A Carr
New Frontier · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A mass spectrometry-based method that does not involve the use of radiolabeling was developed for selective detection of phosphopeptides in complex mixtures. Mixtures of phosphorylated and nonphosphorylated peptides at the low picomole level are analyzed by negative ion electrospray liquid chromatography/mass spectrometry using C-18 packed fused-silica columns (≤320-μm i.d.). Peptides and phosphopeptides in the chromatographic eluant undergo collision-induced dissociation in the free-jet expansion region prior to the mass analyzing quadrupole. Using relatively high collisional excitation potentials, phospho|peptides containing phosphoserine, phosphothreonine, and phosphotyrosine fragment to yield diagnostic ions at m/z 63 and 79 corresponding to PO2 (-); and PO3 (-), respectively. Chromatographic peaks containing phosphopeptides are indicated where these diagnostic ions maximize. The highest sensitivity for phosphopeptide detection is obtained using selected-ion monitoring for m/z 63 and 79. Full-scan mass spectra that exhibit the diagnostic phosphopeptide fragment ions, together with pseudomolecular ions, may be obtained by stepping the collisional excitation potential from a high value during the portion of each scan in which the low-mass-to-charge ratio diagnostic marker ions are being detected to a lower value while the upper mass-to-charge ratio range is being scanned. Good sensitivity for phosphopeptide detection was achieved using standard trifluoroacetic acid containing mobile phases for reversed-phase high-performance liquid chromatography. Data illustrating the selectivity and sensitivity of the approach are presented for mixtures of peptides and phosphopeptides containing the three commonly phosphorylated amino acids.

Identifiers

PMID24225996
OpenAlexW2009682799

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.