Evidence map›Paper›PMID 22927433›Full record

Trial reportThe Journal of biological chemistry2012

Identification of a novel role for dematin in regulating red cell membrane function by modulating spectrin-actin interaction.

Ichiro Koshino, Narla Mohandas, Yuichi Takakuwa

Open access · hybridAbstract readClinical Trial
In one paragraph

Trial report in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

23 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Article
  3. The Role of Liquid-Liquid Phase Separation in Actin Polymerization.International journal of molecular sciences · 2023
    Review
  4. Article
  5. Self-construction of actin networks through phase separation-induced abLIM1 condensates.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. eLife · 2017
    Article
  14. Article
  15. Article
  16. Article
  17. Inositol Hexakisphosphate Kinase-3 Regulates the Morphology and Synapse Formation of Cerebellar Purkinje Cells via Spectrin/Adducin.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  18. Article
  19. Article
  20. Review
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

3 authors at 2 institutions in 2 countries.

Ichiro KoshinoDepartment of Biochemistry, School of Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku 162-8666, Tokyo, Japan.
Narla MohandasNew York Blood Center, New York, New York 10065.
Yuichi TakakuwaDepartment of Biochemistry, School of Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku 162-8666, Tokyo, Japan. Electronic address: takakuwa@research.twmu.ac.jp.
Tokyo Women's Medical University · JPNew York Blood Center · US

Funding

YEAST MEMBRANE CYTOSKELETONP01DK032094 · NIDDK · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI NARLA, MOHANDAS · 1987 to 2021
$26.7M
RED CELL DEFORMABILITY IN VITRO AND SURVIVAL IN VIVOR37DK026263 · NIDDK · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI NARLA, MOHANDAS · 1995 to 2017
$4.5M
RHEOLOGICAL AND ADHERENCE PROPERTIES OF SICKLE CELLSR01HL031579 · NHLBI · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI NARLA, MOHANDAS · 1985 to 2010
$3.8M
RED CELL DEFORMABILITY IN VITRO AND SURVIVAL IN VIVOR01DK026263 · NIDDK · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI NARLA, MOHANDAS · 1986 to 2007
$1.6M
NHLBI NIH HHS HL31579NHLBI NIH HHS R01 HL031579NIDDK NIH HHS DK26263NIDDK NIH HHS DK32094NIDDK NIH HHS P01 DK032094NIDDK NIH HHS R01 DK026263NIDDK NIH HHS R37 DK026263
6 · The paper itself

Abstract

The membrane skeleton plays a central role in maintaining the elasticity and stability of the erythrocyte membrane, two biophysical features critical for optimal functioning and survival of red cells. Many constituent proteins of the membrane skeleton are phosphorylated by various kinases, and phosphorylation of β-spectrin by casein kinase and of protein 4.1R by PKC has been documented to modulate erythrocyte membrane mechanical stability. In this study, we show that activation of endogenous PKA by cAMP decreases membrane mechanical stability and that this effect is mediated primarily by phosphorylation of dematin. Co-sedimentation assay showed that dematin facilitated interaction between spectrin and F-actin, and phosphorylation of dematin by PKA markedly diminished this activity. Quartz crystal microbalance measurement revealed that purified dematin specifically bound the tail region of the spectrin dimer in a saturable manner with a submicromolar affinity. Pulldown assay using recombinant spectrin fragments showed that dematin, but not phospho-dematin, bound to the tail region of the spectrin dimer. These findings imply that dematin contributes to the maintenance of erythrocyte membrane mechanical stability by facilitating spectrin-actin interaction and that phosphorylation of dematin by PKA can modulate these effects. In this study, we have uncovered a novel functional role for dematin in regulating erythrocyte membrane function.

Indexed as

ActinsCasein KinasesCyclic AMPCyclic AMP-Dependent Protein KinasesCytoskeletal ProteinsErythrocyte MembraneFemaleHumansMaleMembrane ProteinsMicrofilament ProteinsProtein MultimerizationProtein Structure, TertiarySpectrinActinsCasein KinasesCyclic AMPCyclic AMP-Dependent Protein KinasesCytoskeletal ProteinsDMTN protein, humanerythrocyte membrane band 4.1 proteinMembrane ProteinsMicrofilament ProteinsSpectrin

Identifiers

PMID22927433
PMCPMC3471709
OpenAlexW2164513507

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.