Evidence map›Paper›PMID 37772174›Full record

ArticleJACS Au2023

False-Positive Glycopeptide Identification via In-FAIMS Fragmentation.

Valentina Rangel-Angarita, Keira E Mahoney, Catherine Kwon, Raibat Sarker, Taryn M Lucas, Stacy A Malaker

Open access · goldAbstract read
In one paragraph

Article in JACS Au, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 10% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Site-specific O-glycans influence lacritin structure and multimerization in tears.Protein science : a publication of the Protein Society · 2026
    Article
  3. Article
  4. Article
  5. PNGaseF-Generated N-Glycans Adduct onto Peptides in the Gas Phase.Journal of the American Society for Mass Spectrometry · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. 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

6 authors at 1 institution in 1 country.

Valentina Rangel-AngaritaDepartment of Chemistry, Yale University, 275 Prospect Street, New Haven, Connecticut 06511, United States.ORCID https://orcid.org/0000-0003-3632-6160
Keira E MahoneyDepartment of Chemistry, Yale University, 275 Prospect Street, New Haven, Connecticut 06511, United States.ORCID https://orcid.org/0000-0003-4561-9838
Catherine KwonDepartment of Chemistry, Yale University, 275 Prospect Street, New Haven, Connecticut 06511, United States.
Raibat SarkerDepartment of Chemistry, Yale University, 275 Prospect Street, New Haven, Connecticut 06511, United States.
Taryn M LucasDepartment of Chemistry, Yale University, 275 Prospect Street, New Haven, Connecticut 06511, United States.
Stacy A MalakerDepartment of Chemistry, Yale University, 275 Prospect Street, New Haven, Connecticut 06511, United States.ORCID https://orcid.org/0000-0003-2382-5067
Yale University · US

Funding

Toward understanding the role of altered glycosylation in cancerR35GM147039 · NIGMS · YALE UNIVERSITY · PI Stacy Alyse Malaker · 2022 to 2026
$2.0M
NIGMS NIH HHS R35 GM147039
6 · The paper itself

Abstract

High-field asymmetric waveform ion mobility spectrometry (FAIMS) separates glycopeptides in the gas phase prior to mass spectrometry (MS) analysis, thus offering the potential to analyze glycopeptides without prior enrichment. Several studies have demonstrated the ability of FAIMS to enhance glycopeptide detection but have primarily focused on N-glycosylation. Here, we evaluated FAIMS for O-glycoprotein and mucin-domain glycoprotein analysis using samples of varying complexity. We demonstrated that FAIMS was useful in increasingly complex samples as it allowed for the identification of more glycosylated species. However, during our analyses, we observed a phenomenon called "in FAIMS fragmentation" (IFF) akin to in source fragmentation but occurring during FAIMS separation. FAIMS experiments showed a 2- to 5-fold increase in spectral matches from IFF compared with control experiments. These results were also replicated in previously published data, indicating that this is likely a systemic occurrence when using FAIMS. Our study highlights that although there are potential benefits to using FAIMS separation, caution must be exercised in data analysis because of prevalent IFF, which may limit its applicability in the broader field of O-glycoproteomics.

Identifiers

PMID37772174
PMCPMC10523363
OpenAlexW4386691880

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.