Evidence map›Paper›PMID 30305279›Full record

ArticleBlood2019

Structure and dynamics of the platelet integrin-binding C4 domain of von Willebrand factor.

Emma-Ruoqi Xu, Sören von Bülow, Po-Chia Chen, Peter J Lenting, Katra Kolšek, Camilo Aponte-Santamaría, Bernd Simon, Jaelle Foot, Tobias Obser, Reinhard Schneppenheim and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

15 citing papers in PubMed, 29 citations in OpenAlex.

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  15. Genetic and Clinical Predictors of Left Atrial Thrombus: A Single Center Case-Control Study.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 6 institutions in 3 countries.

Emma-Ruoqi XuHamburg Unit, European Molecular Biology Laboratory, Hamburg, Germany.ORCID 0000-0001-7300-3868
Sören von BülowStructural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany.ORCID 0000-0001-7125-5973
Po-Chia ChenStructural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany.ORCID 0000-0003-2272-2082
Peter J LentingINSERM, UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin-Bicêtre, France.
Katra KolšekHeidelberg Institute for Theoretical Studies, Heidelberg, Germany.
Camilo Aponte-SantamaríaHeidelberg Institute for Theoretical Studies, Heidelberg, Germany.
Bernd SimonStructural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany.
Jaelle FootStructural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany.
Tobias ObserDepartment of Pediatric Hematology and Oncology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; and.
Reinhard SchneppenheimDepartment of Pediatric Hematology and Oncology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; and.
Frauke GräterHeidelberg Institute for Theoretical Studies, Heidelberg, Germany.
Cécile V DenisINSERM, UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin-Bicêtre, France.
Matthias WilmannsHamburg Unit, European Molecular Biology Laboratory, Hamburg, Germany.
Janosch HennigStructural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany.ORCID 0000-0001-5214-7002
European Molecular Biology Laboratory · DEUniversität Hamburg · DEHeidelberg Institute for Theoretical Studies · DEUniversité Paris-Sud · FREuropean Molecular Biology Laboratory · DEUniversidad de Los Andes · CO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Von Willebrand factor (VWF) is a key player in the regulation of hemostasis by promoting recruitment of platelets to sites of vascular injury. An array of 6 C domains forms the dimeric C-terminal VWF stem. Upon shear force activation, the stem adopts an open conformation allowing the adhesion of VWF to platelets and the vessel wall. To understand the underlying molecular mechanism and associated functional perturbations in disease-related variants, knowledge of high-resolution structures and dynamics of C domains is of paramount interest. Here, we present the solution structure of the VWF C4 domain, which binds to the platelet integrin and is therefore crucial for the VWF function. In the structure, we observed 5 intra- and inter-subdomain disulfide bridges, of which 1 is unique in the C4 domain. The structure further revealed an unusually hinged 2-subdomain arrangement. The hinge is confined to a very short segment around V2547 connecting the 2 subdomains. Together with 2 nearby inter-subdomain disulfide bridges, this hinge induces slow conformational changes and positional alternations of both subdomains with respect to each other. Furthermore, the structure demonstrates that a clinical gain-of-function VWF variant (Y2561) is more likely to have an effect on the arrangement of the C4 domain with neighboring domains rather than impairing platelet integrin binding.

Indexed as

Amino Acid SequenceBlood PlateletsDisulfidesHumansIntegrinsMagnetic Resonance SpectroscopyModels, MolecularProtein BindingProtein DomainsSolutionsStructure-Activity Relationshipvon Willebrand FactorDisulfidesIntegrinsSolutionsvon Willebrand Factor

Identifiers

PMID30305279
PMCPMC6450055
OpenAlexW2896293485

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.