Evidence map›Paper›PMID 15492777›Full record

ArticlePLoS biology2004

Dictyostelium myosin bipolar thick filament formation: importance of charge and specific domains of the myosin rod.

Daniel Hostetter, Sarah Rice, Sara Dean, David Altman, Peggy M McMahon, Shirley Sutton, Ashutosh Tripathy, James A Spudich

Erratum issuedAbstract read
In one paragraph

Article in PLoS biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
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.

  1. Article
  2. SuggestingCells · 2024
    Article
  3. Article
  4. 14-3-3 proteins tune non-muscle myosin II assembly.The Journal of biological chemistry · 2018
    Article
  5. Multiple tail domain interactions stabilize nonmuscle myosin II bipolar filaments.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Temperature dependence of myosin-II tail fragment assembly.Journal of muscle research and cell motility · 2008
    Article
  14. Article
  15. Article
  16. Distinct pathways control recruitment and maintenance of myosin II at the cleavage furrow during cytokinesis.Proceedings of the National Academy of Sciences of the United States of America · 2005
    Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

8 authors.

Daniel HostetterDepartment of Biochemistry, Stanford University School of Medicine, Stanford, California, USA.
Sarah Rice
Sara Dean
David Altman
Peggy M McMahon
Shirley Sutton
Ashutosh Tripathy
James A Spudich

Funding

MYOSIN MOVEMENT IN VITRO: MOLECULAR CHARACTERIZATIONR01GM033289 · NIGMS · STANFORD UNIVERSITY · PI SPUDICH, JAMES · 1985 to 2024
$13.6M
Myosin-II Dynamics and CytokinesisR01GM046551 · NIGMS · STANFORD UNIVERSITY · PI SPUDICH, JAMES A · 2002 to 2005
$1.6M
REGULATION OF DICTYOSTELIUM MYOSIN BY PHOSPHORYLATIONR37GM046551 · NIGMS · STANFORD UNIVERSITY · PI SPUDICH, JAMES A · 1991 to 2000
$272k
NIGMS NIH HHS GM46551NIGMS NIH HHS R01 GM033289NIGMS NIH HHS R01 GM046551NIGMS NIH HHS R37 GM046551
6 · The paper itself

Abstract

Myosin-II thick filament formation in Dictyostelium is an excellent system for investigating the phenomenon of self-assembly, as the myosin molecule itself contains all the information required to form a structure of defined size. Phosphorylation of only three threonine residues can dramatically change the assembly state of myosin-II. We show here that the C-terminal 68 kDa of the myosin-II tail (termed AD-Cterm) assembles in a regulated manner similar to full-length myosin-II and forms bipolar thick filament (BTF) structures when a green fluorescent protein (GFP) "head" is added to the N terminus. The localization of this GFP-AD-Cterm to the cleavage furrow of dividing Dictyostelium cells depends on assembly state, similar to full-length myosin-II. This tail fragment therefore represents a good model system for the regulated formation and localization of BTFs. By reducing regulated BTF assembly to a more manageable model system, we were able to explore determinants of myosin-II self-assembly. Our data support a model in which a globular head limits the size of a BTF, and the large-scale charge character of the AD-Cterm region is important for BTF formation. Truncation analysis of AD-Cterm tail fragments shows that assembly is delicately balanced, resulting in assembled myosin-II molecules that are poised to disassemble due to the phosphorylation of only three threonines.

Indexed as

Actin CytoskeletonAnimalsCell DivisionCell LineCircular DichroismCytoskeletonDictyosteliumEscherichia coliGene Expression RegulationGreen Fluorescent ProteinsMicroscopy, ElectronMicroscopy, FluorescenceMolecular Sequence DataMyosinsMyosin SubfragmentsMyosin Type IIGreen Fluorescent ProteinsMyosinsMyosin SubfragmentsMyosin Type IIThreonine

Identifiers

PMID15492777
PMCPMC523230

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.