Evidence map›Paper›PMID 21652698›Full record

ArticleThe Journal of biological chemistry2011

Studies of the mechanistic details of the pH-dependent association of botulinum neurotoxin with membranes.

Darren J Mushrush, Hanane A Koteiche, Morgan A Sammons, Andrew J Link, Hassane S McHaourab, D Borden Lacy

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.5field-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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Pharmacological Management of Urinary Incontinence: Current and Emerging Treatment.Clinical pharmacology : advances and applications · 2021
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Structures of engineered Clostridium botulinum neurotoxin derivatives.Acta crystallographica. Section F, Structural biology and crystallization communications · 2011
    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

6 authors at 1 institution in 1 country.

Darren J MushrushDepartment of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, USA.
Hanane A Koteiche
Morgan A Sammons
Andrew J Link
Hassane S McHaourab
D Borden Lacy
Vanderbilt University · US

Funding

MOLECULAR BIOPHYSICS TRAINING PROGRAM AT VANDERBILTT32GM008320 · NIGMS · VANDERBILT UNIVERSITY · PI CHAZIN, WALTER J. · 1989 to 2023
$7.9M
Proteomic Analysis of Eukaryotic Protein SynthesisR01GM064779 · NIGMS · VANDERBILT UNIVERSITY · PI LINK, ANDREW J. · 2002 to 2010
$3.0M
Structural Mechanisms of Botulinum Neurotoxin PathogenesisR01AI075259 · NIAID · VANDERBILT UNIVERSITY · PI LACY, DANA BORDEN · 2008 to 2012
$1.5M
Functional Analysis of ZNF9 in Myotonic Dystrophy Type 2R21AR055231 · NIAMS · VANDERBILT UNIVERSITY · PI LINK, ANDREW J. · 2008 to 2009
$338k
NIAID NIH HHS AI075259NIAID NIH HHS R01 AI075259NIAMS NIH HHS R21 AR055231NIGMS NIH HHS R01 GM64779NIGMS NIH HHS T32 GM008320
6 · The paper itself

Abstract

Botulinum neurotoxin (BoNT) belongs to a large class of toxic proteins that act by enzymatically modifying cytosolic substrates within eukaryotic cells. The process by which a catalytic moiety is transferred across a membrane to enter the cytosol is not understood for any such toxin. BoNT is known to form pH-dependent pores important for the translocation of the catalytic domain into the cytosol. As a first step toward understanding this process, we investigated the mechanism by which the translocation domain of BoNT associates with a model liposome membrane. We report conditions that allow pH-dependent proteoliposome formation and identify a sequence at the translocation domain C terminus that is protected from proteolytic degradation in the context of the proteoliposome. Fluorescence quenching experiments suggest that residues within this sequence move to a hydrophobic environment upon association with liposomes. EPR analyses of spin-labeled mutants reveal major conformational changes in a distinct region of the structure upon association and indicate the formation of an oligomeric membrane-associated intermediate. Together, these data support a model of how BoNT orients with membranes in response to low pH.

Indexed as

Membranes, ArtificialModels, ChemicalProtein MultimerizationBotulinum Toxins, Type ACytosolHydrogen-Ion ConcentrationProtein Structure, TertiaryProtein TransportBotulinum Toxins, Type AincobotulinumtoxinAMembranes, Artificial

Identifiers

PMID21652698
PMCPMC3143659
OpenAlexW2088598891

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.