Evidence map›Paper›PMID 12139770›Full record

ArticleBMC cell biology2002

Differential localization in cells of myosin II heavy chain kinases during cytokinesis and polarized migration.

Wenchuan Liang, Lucila Licate, Hans Warrick, James Spudich, Thomas Egelhoff

Open access · goldAbstract read
In one paragraph

Article in BMC cell biology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

31 citing papers in PubMed, 56 citations in OpenAlex.

  1. Review
  2. SuggestingCells · 2024
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  8. Review
  9. A Cdc42- and Rac-interactive binding (CRIB) domain mediates functions of coronin.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  10. Article
  11. Cytokinesis mechanics and mechanosensing.Cytoskeleton (Hoboken, N.J.) · 2012
    Review
  12. Article
  13. Article
  14. Article
  15. The alpha-kinase family: an exceptional branch on the protein kinase tree.Cellular and molecular life sciences : CMLS · 2010
    Review
  16. Article
  17. Article
  18. Review
  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

5 authors at 2 institutions in 1 country.

Wenchuan LiangDepartment of Biochemistry, Stanford University School of Medicine, CA 94305-5307, USA. wliang@cmgm.stamford.edu
Lucila Licate
Hans Warrick
James Spudich
Thomas Egelhoff
Stanford University · USCase Western Reserve University · US

Funding

Myosin Assembly in DictyosteliumR01GM050009 · NIGMS · CLEVELAND CLINIC LERNER COM-CWRU · PI EGELHOFF, THOMAS · 1998 to 2017
$4.7M
Myosin-II Dynamics and CytokinesisR01GM046551 · NIGMS · STANFORD UNIVERSITY · PI SPUDICH, JAMES A · 2002 to 2005
$1.6M
NIGMS NIH HHS 5R01 GM46551-10NIGMS NIH HHS R01 GM046551NIGMS NIH HHS R01 GM050009NIGMS NIH HHS R01 GM50009
6 · The paper itself

Abstract

backgroundCortical myosin-II filaments in Dictyostelium discoideum display enrichment in the posterior of the cell during cell migration, and in the cleavage furrow during cytokinesis. Filament assembly in turn is regulated by phosphorylation in the tail region of the myosin heavy chain (MHC). Early studies have revealed one enzyme, MHCK-A, which participates in filament assembly control, and two other structurally related enzymes, MHCK-B and -C. In this report we evaluate the biochemical properties of MHCK-C, and using fluorescence microscopy in living cells we examine the localization of GFP-labeled MHCK-A, -B, and -C in relation to GFP-myosin-II localization.

resultsBiochemical analysis indicates that MHCK-C can phosphorylate MHC with concomitant disassembly of myosin II filaments. In living cells, GFP-MHCK-A displayed frequent enrichment in the anterior of polarized migrating cells, and in the polar region but not the furrow during cytokinesis. GFP-MHCK-B generally displayed a homogeneous distribution. In migrating cells GFP-MHCK-C displayed posterior enrichment similar to that of myosin II, but did not localize with myosin II to the furrow during the early stage of cytokinesis. At the late stage of cytokinesis, GFP-MHCK-C became strongly enriched in the cleavage furrow, remaining there through completion of division.

conclusionMHCK-A, -B, and -C display distinct cellular localization patterns suggesting different cellular functions and regulation for each MHCK isoform. The strong localization of MHCK-C to the cleavage furrow in the late stages of cell division may reflect a mechanism by which the cell regulates the progressive removal of myosin II as furrowing progresses.

Indexed as

Adenosine TriphosphateAnimalsCalcium-Calmodulin-Dependent Protein KinasesCell DivisionCell PolarityDictyosteliumGreen Fluorescent ProteinsInterphaseIsoenzymesLuminescent ProteinsMagnesiumMicroscopy, FluorescenceMyosin Type IIPhosphorylationProtozoan ProteinsRecombinant Fusion ProteinsAdenosine TriphosphateCalcium-Calmodulin-Dependent Protein KinasesGreen Fluorescent ProteinsIsoenzymesLuminescent ProteinsMagnesiummyosin-heavy-chain kinaseMyosin Type IIProtozoan ProteinsRecombinant Fusion Proteins

Identifiers

PMID12139770
PMCPMC119860
OpenAlexW2105630915

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.