Evidence map›Paper›PMID 23950713›Full record

ArticlePLoS pathogens2013

Structure of the parainfluenza virus 5 (PIV5) hemagglutinin-neuraminidase (HN) ectodomain.

Brett D Welch, Ping Yuan, Sayantan Bose, Christopher A Kors, Robert A Lamb, Theodore S Jardetzky

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 3% 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

68 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Functional and antigenic constraints on the Nipah virus fusion protein.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  6. Article
  7. Functional and antigenic constraints on the Nipah virus fusion protein.bioRxiv : the preprint server for biology · 2026
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Structure and supramolecular organization of the canine distemper virus attachment glycoprotein.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  19. Article
  20. Article

8 more citing papers are in PubMed but not listed here.

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 3 institutions in 1 country.

Brett D WelchDepartment of Molecular Biosciences, Northwestern University, Evanston, Illinois, USA.
Ping Yuan
Sayantan Bose
Christopher A Kors
Robert A Lamb
Theodore S Jardetzky
Howard Hughes Medical Institute · USNorthwestern University · USStanford University · US

Funding

Tumor Environment and Metastasis (TEAM) Research ProgramP30CA060553 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Daniela E Matei · 1993 to 2026
$153.9M
STRUCTURAL STUDIES OF PARAMYXOVIRUS FUSION PROTEINSR01GM061050 · NIGMS · STANFORD UNIVERSITY · PI JARDETZKY, THEODORE S · 2000 to 2015
$3.1M
STRUCTURE &EXPRESSION OF THE PARAMYXOVIRUS SV5 GENOMER01AI023173 · NIAID · NORTHWESTERN UNIVERSITY · PI LAMB, ROBERT A · 1986 to 2010
$3.1M
NCI NIH HHS P30 CA060553NIAID NIH HHS AI-23173NIAID NIH HHS R01 AI023173NIGMS NIH HHS GM-61050NIGMS NIH HHS R01 GM061050
6 · The paper itself

Abstract

Paramyxoviruses cause a wide variety of human and animal diseases. They infect host cells using the coordinated action of two surface glycoproteins, the receptor binding protein (HN, H, or G) and the fusion protein (F). HN binds sialic acid on host cells (hemagglutinin activity) and hydrolyzes these receptors during viral egress (neuraminidase activity, NA). Additionally, receptor binding is thought to induce a conformational change in HN that subsequently triggers major refolding in homotypic F, resulting in fusion of virus and target cell membranes. HN is an oligomeric type II transmembrane protein with a short cytoplasmic domain and a large ectodomain comprising a long helical stalk and large globular head domain containing the enzymatic functions (NA domain). Extensive biochemical characterization has revealed that HN-stalk residues determine F specificity and activation. However, the F/HN interaction and the mechanisms whereby receptor binding regulates F activation are poorly defined. Recently, a structure of Newcastle disease virus (NDV) HN ectodomain revealed the heads (NA domains) in a "4-heads-down" conformation whereby two of the heads form a symmetrical interaction with two sides of the stalk. The interface includes stalk residues implicated in triggering F, and the heads sterically shield these residues from interaction with F (at least on two sides). Here we report the x-ray crystal structure of parainfluenza virus 5 (PIV5) HN ectodomain in a "2-heads-up/2-heads-down" conformation where two heads (covalent dimers) are in the "down position," forming a similar interface as observed in the NDV HN ectodomain structure, and two heads are in an "up position." The structure supports a model in which the heads of HN transition from down to up upon receptor binding thereby releasing steric constraints and facilitating the interaction between critical HN-stalk residues and F.

Indexed as

Models, MolecularAnimalsChlorocebus aethiopsCrystallography, X-RayHN ProteinHumansParainfluenza Virus 5Protein Structure, SecondaryProtein Structure, TertiaryStructure-Activity RelationshipVero CellsHN Protein

Identifiers

PMID23950713
PMCPMC3738495
OpenAlexW2138584068

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.