Evidence map›Paper›PMID 18417475›Full record

ArticleThe Journal of biological chemistry2008

Unique Asn-linked oligosaccharides of the human pathogen Entamoeba histolytica.

Paula Magnelli, John F Cipollo, Daniel M Ratner, Jike Cui, Daniel Kelleher, Reid Gilmore, Catherine E Costello, Phillips W Robbins, John Samuelson

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Review
  2. Article
  3. Theoretical Study of Sphingomyelinases fromPathogens (Basel, Switzerland) · 2025
    Article
  4. Article
  5. Towards understanding the extensive diversity of protein N-glycan structures in eukaryotes.Biological reviews of the Cambridge Philosophical Society · 2022
    Review
  6. Review
  7. Article
  8. Article
  9. Asparagine-Linked Glycans ofMolecular & cellular proteomics : MCP · 2017
    Article
  10. Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. 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

9 authors.

Paula MagnelliDepartment of Molecular and Cell Biology, Department of Biochemistry, Boston University Medical Center, Boston, MA 02118-2526, USA.
John F Cipollo
Daniel M Ratner
Jike Cui
Daniel Kelleher
Reid Gilmore
Catherine E Costello
Phillips W Robbins
John Samuelson

Funding

XI INTERNATIONAL SYMPOSIUM ON AMYLOIDOSISP41RR010888 · NCRR · BOSTON UNIVERSITY MEDICAL CAMPUS · PI ZAIA, JOSEPH · 1996 to 2011
$18.6M
ASSEMBLY AND TRANSFER OF N-LINKED OLIGOSACCHARIDESR01GM043768 · NIGMS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI GILMORE, JAMES REID · 1990 to 2018
$6.9M
ROBBINS Glycosylation and Glycosidases-Cell and Molecular BiologyR01GM031318 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI SAMUELSON, JOHN C. · 1985 to 2011
$4.1M
THREE LECTIN MODEL OF AMEBIC ENCYSTATION AND EXCYSTATIONR01AI044070 · NIAID · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI SAMUELSON, JOHN C. · 2000 to 2010
$4.0M
UV&IR MALDI REFLECTION TIME OF FLIGHT MASS SPECTROMETERS10RR015942 · NCRR · BOSTON UNIVERSITY MEDICAL CAMPUS · PI COSTELLO, CATHERINE E. · 2001 to 2001
$402k
PROTEIN GLYCOSYLATION - CELLULAR AND MOLECULAR BIOLOGYR37GM031318 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI ROBBINS, PHILLIPS W · 1988 to 1997
–
NCRR NIH HHS P41 RR 10888NCRR NIH HHS S10 RR 15942NIAID NIH HHS AI 44070NIGMS NIH HHS GM 31318NIGMS NIH HHS GM 43768
6 · The paper itself

Abstract

N-Glycans of Entamoeba histolytica, the protist that causes amebic dysentery and liver abscess, are of great interest for multiple reasons. E. histolytica makes an unusual truncated N-glycan precursor (Man(5)GlcNAc(2)), has few nucleotide sugar transporters, and has a surface that is capped by the lectin concanavalin A. Here, biochemical and mass spectrometric methods were used to examine N-glycan biosynthesis and the final N-glycans of E. histolytica with the following conclusions. Unprocessed Man(5)GlcNAc(2), which is the most abundant E. histolytica N-glycan, is aggregated into caps on the surface of E. histolytica by the N-glycan-specific, anti-retroviral lectin cyanovirin-N. Glc(1)Man(5)GlcNAc(2), which is made by a UDP-Glc: glycoprotein glucosyltransferase that is part of a conserved N-glycan-dependent endoplasmic reticulum quality control system for protein folding, is also present in mature N-glycans. A swainsonine-sensitive alpha-mannosidase trims some N-glycans to biantennary Man(3)GlcNAc(2). Complex N-glycans of E. histolytica are made by the addition of alpha1,2-linked Gal to both arms of small oligomannose glycans, and Gal residues are capped by one or more Glc. In summary, E. histolytica N-glycans include unprocessed Man(5)GlcNAc(2), which is a target for cyanovirin-N, as well as unique, complex N-glycans containing Gal and Glc.

Indexed as

Gene Expression Regulationalpha-MannosidaseAnimalsAsparagineConcanavalin AEndoplasmic ReticulumEntamoeba histolyticaGlycosylationLectinsMass SpectrometryModels, ChemicalMolecular ConformationOligosaccharidesPolysaccharidesProtein Foldingalpha-MannosidaseAsparagineConcanavalin ALectinsOligosaccharidesPolysaccharides

Identifiers

PMID18417475
PMCPMC2440624

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.