Evidence map›Paper›PMID 17976644›Full record

ArticleJournal of molecular biology2007

unc-94 encodes a tropomodulin in Caenorhabditis elegans.

Tesheka O Stevenson, Kristina B Mercer, Elisabeth A Cox, Nathaniel J Szewczyk, Catharine A Conley, Jeffrey D Hardin, Guy M Benian

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular biology, 2007. 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
0.4field-weighted citation impact, top 45% 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, 23 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. The minus-end actin capping protein, UNC-94/tropomodulin, regulates development of the Caenorhabditis elegans intestine.Developmental dynamics : an official publication of the American Association of Anatomists · 2014
    Article
  9. Article
  10. Cadherins and their partners in the nematode worm Caenorhabditis elegans.Progress in molecular biology and translational science · 2013
    Review
  11. Article
  12. Review
  13. Immunofluorescent localization of proteins in Caenorhabditis elegans muscle.Methods in molecular biology (Clifton, N.J.) · 2012
    Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  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 1 country.

Tesheka O StevensonDepartment of Pathology, Emory University, Atlanta, GA 30322, USA.
Kristina B Mercer
Elisabeth A Cox
Nathaniel J Szewczyk
Catharine A Conley
Jeffrey D Hardin
Guy M Benian
Emory University · USAmes Research Center · USUniversity of Wisconsin–Madison · US

Funding

PREDOCTORAL TRAINING PROGRAM IN GENETICST32GM008490 · NIGMS · EMORY UNIVERSITY · PI BOSS, JEREMY M. · 1993 to 2022
$8.0M
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
Nematode UNC-98 functions in focal adhensions and nucleiR01AR052133 · NIAMS · EMORY UNIVERSITY · PI BENIAN, GUY MARTIN · 2005 to 2009
$1.2M
Gene Networks Regulating Muscle Protein DegradationR01AR054342 · NIAMS · UNIVERSITY OF NOTTINGHAM · PI SZEWCZYK, NATHANIEL J. · 2007 to 2010
$902k
NIAMS NIH HHS AR052133NIAMS NIH HHS R01 AR052133NIAMS NIH HHS R01 AR054342NIGMS NIH HHS GM58038NIGMS NIH HHS R01 GM058038NIGMS NIH HHS T32 GM008490
6 · The paper itself

Abstract

unc-94 is one of about 40 genes in Caenorhabditis elegans that, when mutant, displays an abnormal muscle phenotype. Two mutant alleles of unc-94, su177 and sf20, show reduced motility and brood size and disorganization of muscle structure. In unc-94 mutants, immunofluorescence microscopy shows that a number of known sarcomeric proteins are abnormal, but the most dramatic effect is in the localization of F-actin, with some abnormally accumulated near muscle cell-to-cell boundaries. Electron microscopy shows that unc-94(sf20) mutants have large accumulations of thin filaments near the boundaries of adjacent muscle cells. Multiple lines of evidence prove that unc-94 encodes a tropomodulin, a conserved protein known from other systems to bind to both actin and tropomyosin at the pointed ends of actin thin filaments. su177 is a splice site mutation in intron 1, which is specific to one of the two unc-94 isoforms, isoform a; sf20 has a stop codon in exon 5, which is shared by both isoform a and isoform b. The use of promoter-green fluorescent protein constructs in transgenic animals revealed that unc-94a is expressed in body wall, vulval and uterine muscles, whereas unc-94b is expressed in pharyngeal, anal depressor, vulval and uterine muscles and in spermatheca and intestinal epithelial cells. By Western blot, anti-UNC-94 antibodies detect polypeptides of expected size from wild type, wild-type-sized proteins of reduced abundance from unc-94(su177), and no detectable unc-94 products from unc-94(sf20). Using these same antibodies, UNC-94 localizes as two closely spaced parallel lines flanking the M-lines, consistent with localization to the pointed ends of thin filaments. In addition, UNC-94 is localized near muscle cell-to-cell boundaries.

Indexed as

ActinsAmino Acid SequenceAnimalsAnimals, Genetically ModifiedCaenorhabditis elegansCaenorhabditis elegans ProteinsIntercellular JunctionsMicrofilament ProteinsMolecular Sequence DataMuscle ProteinsOrgan SpecificityProtein IsoformsTropomodulinActinsCaenorhabditis elegans ProteinsMicrofilament ProteinsMuscle ProteinsProtein IsoformsTropomodulinUNC-94 protein, C elegans

Identifiers

PMID17976644
PMCPMC2175264
OpenAlexW2123394940

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.