Evidence map›Paper›PMID 23271732›Full record

ArticleThe Journal of biological chemistry2013

Specific conserved C-terminal amino acids of Caenorhabditis elegans HMP-1/α-catenin modulate F-actin binding independently of vinculin.

Stephanie L Maiden, Neale Harrison, Jack Keegan, Brian Cain, Allison M Lynch, Jonathan Pettitt, Jeff Hardin

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.1field-weighted citation impact, top 28% 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

21 citing papers in PubMed, 30 citations in OpenAlex.

  1. Review
  2. LGL-1 and the RhoGAP protein PAC-1 redundantly polarize thebioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Synergistic effects ofmicroPublication biology · 2021
    Article
  8. Exposing a novel genetic interaction betweenmicroPublication biology · 2020
    Article
  9. Game of Tissues: How the Epidermis ThronesJournal of developmental biology · 2020
    Review
  10. The adhesion modulation domain ofMolecular biology of the cell · 2019
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

7 authors at 3 institutions in 3 countries.

Stephanie L MaidenDepartment of Zoology, University of Wisconsin, Madison, Wisconsin 53706, USA.
Neale Harrison
Jack Keegan
Brian Cain
Allison M Lynch
Jonathan Pettitt
Jeff Hardin
Institute of Zoology · KZUniversity of Aberdeen · GBUniversity of Wisconsin–Madison · US

Funding

Enhancing and expanding the CGC Strain CollectionP40OD010440 · OD · UNIVERSITY OF MINNESOTA · PI Aric L Daul, Ann E. Rougvie · 2012 to 2026
$7.5M
Tension-dependent regulation of alpha-catenin during morphogenesis in C. elegansR01GM058038 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI HARDIN, JEFFREY D · 1998 to 2021
$6.2M
NIGMS NIH HHS R01 GM058038NIGMS NIH HHS R01 GM58038NIH HHS P40 OD010440Wellcome Trust 073317/Z/03/Z
6 · The paper itself

Abstract

Stable intercellular adhesions formed through the cadherin-catenin complex are important determinants of proper tissue architecture and help maintain tissue integrity during morphogenetic movements in developing embryos. A key regulator of this stability is α-catenin, which connects the cadherin-catenin complex to the actin cytoskeleton. Although the C-terminal F-actin-binding domain of α-catenin has been shown to be crucial for its function, a more detailed in vivo analysis of discrete regions and residues required for actin binding has not been performed. Using Caenorhabditis elegans as a model system, we have characterized mutations in hmp-1/α-catenin that identify HMP-1 residues 687-742 and 826-927, as well as amino acid 802, as critical to the localization of junctional proximal actin during epidermal morphogenesis. We also find that the S823F transition in a hypomorphic allele, hmp-1(fe4), decreases actin binding in vitro. Using hmp-1(fe4) animals in a mutagenesis screen, we were then able to identify 11 intragenic suppressors of hmp-1(fe4) that revert actin binding to wild-type levels. Using homology modeling, we show that these amino acids are positioned at key conserved sites within predicted α-helices in the C terminus. Through the use of transgenic animals, we also demonstrate that HMP-1 residues 315-494, which correspond to a putative mechanotransduction domain that binds vinculin in vertebrate αE-catenin, are not required during epidermal morphogenesis but may aid efficient recruitment of HMP-1 to the junction. Our studies are the first to identify key conserved amino acids in the C terminus of α-catenin that modulate F-actin binding in living embryos of a simple metazoan.

Indexed as

Actin CytoskeletonActinsAllelesalpha CateninAnimalsCadherinsCaenorhabditis elegansCaenorhabditis elegans ProteinsFluorescence Recovery After PhotobleachingHomozygoteModels, BiologicalMutationProtein BindingProtein Structure, TertiarySequence Analysis, DNAVinculinActinsalpha CateninCadherinsCaenorhabditis elegans ProteinsVinculin

Identifiers

PMID23271732
PMCPMC3581367
OpenAlexW2073327767

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.