Evidence map›Paper›PMID 23226363›Full record

ArticlePloS one2012

Glycosaminoglycans are interactants of Langerin: comparison with gp120 highlights an unexpected calcium-independent binding mode.

Eric Chabrol, Alessandra Nurisso, Antoine Daina, Emilie Vassal-Stermann, Michel Thepaut, Eric Girard, Romain R Vivès, Franck Fieschi

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

18 citing papers in PubMed, 47 citations in OpenAlex.

  1. Synthetic Ligands of Myeloid C-Type Lectin Receptors.Chembiochem : a European journal of chemical biology · 2026
    Review
  2. Secondary Sites of the C-type Lectin-Like Fold.Chemistry (Weinheim an der Bergstrasse, Germany) · 2024
    Review
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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

8 authors at 7 institutions in 2 countries.

Eric ChabrolGroupe Membrane & Pathogens, Institut de Biologie Structurale, Université Joseph Fourier, Grenoble, France.
Alessandra Nurisso
Antoine Daina
Emilie Vassal-Stermann
Michel Thepaut
Eric Girard
Romain R Vivès
Franck Fieschi
Institut de Recherches en Technologies et Sciences pour le Vivant · FRCommissariat à l'Énergie Atomique et aux Énergies Alternatives · FRInstitut de Biologie Structurale · FRSIB Swiss Institute of Bioinformatics · CHUniversité Grenoble Alpes · FRUniversité Joseph Fourier · FRUniversity of Geneva · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Langerin is a C-type lectin specifically expressed in Langerhans cells. As recently shown for HIV, Langerin is thought to capture pathogens and mediate their internalisation into Birbeck Granules for elimination. However, the precise functions of Langerin remain elusive, mostly because of the lack of information on its binding properties and physiological ligands. Based on recent reports that Langerin binds to sulfated sugars, we conducted here a comparative analysis of Langerin interaction with mannose-rich HIV glycoprotein gp120 and glycosaminoglycan (GAGs), a family of sulfated polysaccharides expressed at the surface of most mammalian cells. Our results first revealed that Langerin bound to these different glycans through very distinct mechanisms and led to the identification of a novel, GAG-specific binding mode within Langerin. In contrast to the canonical lectin domain, this new binding site showed no Ca(2+)-dependency, and could only be detected in entire, trimeric extracellular domains of Langerin. Interestingly binding to GAGs, did not simply rely on a net charge effect, but rather on more discrete saccharide features, such as 6-O-sulfation, or iduronic acid content. Using molecular modelling simulations, we proposed a model of Langerin/heparin complex, which located the GAG binding site at the interface of two of the three Carbohydrate-recognition domains of the protein, at the edge of the a-helix coiled-coil. To our knowledge, the binding properties that we have highlighted here for Langerin, have never been reported for C-type lectins before. These findings provide new insights towards the understanding of Langerin biological functions.

Indexed as

Antigens, CDCalciumEpidermal CellsGlycosaminoglycansHeparinHIV Envelope Protein gp120HumansLangerhans CellsLectins, C-TypeMannose-Binding LectinsModels, MolecularMolecular Docking SimulationMucous MembraneProtein BindingProtein Structure, TertiarySoftwareAntigens, CDCalciumCD207 protein, humanGlycosaminoglycansgp120 protein, Human immunodeficiency virus 1HeparinHIV Envelope Protein gp120Lectins, C-TypeMannose-Binding Lectins

Identifiers

PMID23226363
PMCPMC3511376
OpenAlexW2061001274

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.