Evidence map›Paper›PMID 22238302›Full record

ArticleJournal of virology2012

Beyond anchoring: the expanding role of the hendra virus fusion protein transmembrane domain in protein folding, stability, and function.

Everett Clinton Smith, Megan R Culler, Lance M Hellman, Michael G Fried, Trevor P Creamer, Rebecca Ellis Dutch

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Article
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  12. Review
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  15. Unity in diversity: shared mechanism of entry among paramyxoviruses.Progress in molecular biology and translational science · 2015
    Review
  16. Article
  17. Article
  18. Article
  19. Paramyxovirus entry.Advances in experimental medicine and biology · 2013
    Review
  20. 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.

Everett Clinton SmithDepartment of Molecular and Cellular Biochemistrya and Center for Structural Biology,b University of Kentucky, Lexington, Kentucky, USA.
Megan R Culler
Lance M Hellman
Michael G Fried
Trevor P Creamer
Rebecca Ellis Dutch
University of Kentucky · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007347 · NIGMS · VANDERBILT UNIVERSITY · PI WILLIAMS, CHRISTOPHER S. · 1985 to 2023
$26.3M
UNDERSTANDING THE MOLECULAR BASIS OF EPIGENETIC TRANSCRIPTIONAL SILENCINGP20RR020171 · NCRR · UNIVERSITY OF KENTUCKY · PI LOUIS HERSH, LOUIS HERSH LOUIS HERSH · 2004 to 2011
$16.5M
SV5 and Hendra virus F protein promoted membrane fusionR01AI051517 · NIAID · UNIVERSITY OF KENTUCKY · PI DUTCH, REBECCA E. · 2002 to 2019
$4.4M
COOPERATIVE INTERACTIONS IN DNA REPAIRR01GM070662 · NIGMS · UNIVERSITY OF KENTUCKY · PI FRIED, MICHAEL G. · 2004 to 2010
$1.4M
NCRR NIH HHS 2P20RR020171NCRR NIH HHS P20 RR020171NIAID NIH HHS R01 AI051517NIAID NIH HHS R01AI051517NIGMS NIH HHS R01 GM070662NIGMS NIH HHS R01GM070662NIGMS NIH HHS T32 GM007347
6 · The paper itself

Abstract

While work with viral fusion proteins has demonstrated that the transmembrane domain (TMD) can affect protein folding, stability, and membrane fusion promotion, the mechanism(s) remains poorly understood. TMDs could play a role in fusion promotion through direct TMD-TMD interactions, and we have recently shown that isolated TMDs from three paramyxovirus fusion (F) proteins interact as trimers using sedimentation equilibrium (SE) analysis (E. C. Smith, et al., submitted for publication). Immediately N-terminal to the TMD is heptad repeat B (HRB), which plays critical roles in fusion. Interestingly, addition of HRB decreased the stability of the trimeric TMD-TMD interactions. This result, combined with previous findings that HRB forms a trimeric coiled coil in the prefusion form of the whole protein though HRB peptides fail to stably associate in isolation, suggests that the trimeric TMD-TMD interactions work in concert with elements in the F ectodomain head to stabilize a weak HRB interaction. Thus, changes in TMD-TMD interactions could be important in regulating F triggering and refolding. Alanine insertions between the TMD and HRB demonstrated that spacing between these two regions is important for protein stability while not affecting TMD-TMD interactions. Additional mutagenesis of the C-terminal end of the TMD suggests that β-branched residues within the TMD play a role in membrane fusion, potentially through modulation of TMD-TMD interactions. Our results support a model whereby the C-terminal end of the Hendra virus F TMD is an important regulator of TMD-TMD interactions and show that these interactions help hold HRB in place prior to the triggering of membrane fusion.

Indexed as

Amino Acid SequenceCell LineHendra VirusHenipavirus InfectionsHumansMolecular Sequence DataProtein FoldingProtein StabilityProtein Structure, TertiarySequence AlignmentViral Fusion ProteinsViral Fusion Proteins

Identifiers

PMID22238302
PMCPMC3302297
OpenAlexW2005221428

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.