Evidence map›Paper›PMID 16977317›Full record

ArticleThe EMBO journal2006

A CapG gain-of-function mutant reveals critical structural and functional determinants for actin filament severing.

Y Zhang, Sergey M Vorobiev, Bruce G Gibson, Binghua Hao, Gurjit S Sidhu, Vishnu S Mishra, Elena G Yarmola, Michael R Bubb, Steven C Almo, Frederick S Southwick

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

16 citing papers in PubMed, 29 citations in OpenAlex.

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  15. Dynamics of the CapG actin-binding protein in the cell nucleus studied by FRAP and FCS.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2008
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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

10 authors at 3 institutions in 1 country.

Y ZhangDepartment of Medicine, University of Florida, Gainesville, 32610, USA.
Sergey M Vorobiev
Bruce G Gibson
Binghua Hao
Gurjit S Sidhu
Vishnu S Mishra
Elena G Yarmola
Michael R Bubb
Steven C Almo
Frederick S Southwick
University of Florida · USAlbert Einstein College of Medicine · USColumbia University · US

Funding

REGULATION OF ACTIN FILAMENT FORMATION IN PHAGOCYTESR01AI023262 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI SOUTHWICK, FREDERICK S · 1985 to 2010
$3.3M
The mechanism of immunosuppression by thymosin beta 4.K25AR048918 · NIAMS · UNIVERSITY OF FLORIDA · PI YARMOLA, ELENA GEORGINA · 2003 to 2007
$492k
NIAID NIH HHS R01 AI023262NIAID NIH HHS R01AI-23262NIAMS NIH HHS 5K25AR048918NIAMS NIH HHS K25 AR048918
6 · The paper itself

Abstract

CapG is the only member of the gelsolin family unable to sever actin filaments. Changing amino acids 84-91 (severing domain) and 124-137 (WH2-containing segment) simultaneously to the sequences of gelsolin results in a mutant, CapG-sev, capable of severing actin filaments. The gain of severing function does not alter actin filament capping, but is accompanied by a higher affinity for monomeric actin, and the capacity to bind and sequester two actin monomers. Analysis of CapG-sev crystal structure suggests a more loosely folded inactive conformation than gelsolin, with a shorter S1-S2 latch. Calcium binding to S1 opens this latch and S1 becomes separated from a closely interfaced S2-S3 complex by an extended arm consisting of amino acids 118-137. Modeling with F-actin predicts that the length of this WH2-containing arm is critical for severing function, and the addition of a single amino acid (alanine or histidine) eliminates CapG-sev severing activity, confirming this prediction. We conclude that efficient severing utilizes two actin monomer-binding sites, and that the length of the WH2-containing segment is a critical functional determinant for severing.

Indexed as

Actin CytoskeletonActinsAmino Acid SequenceAmino Acid SubstitutionAnimalsCrystallography, X-RayGelsolinModels, BiologicalModels, MolecularMolecular Sequence DataMutant ProteinsProtein BindingProtein Structure, SecondaryRabbitsStructure-Activity RelationshipActinsGelsolinMutant Proteins

Identifiers

PMID16977317
PMCPMC1589989
OpenAlexW1989054829

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.