Evidence map›Paper›PMID 19966304›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2010

The gamma isoform of CaM kinase II controls mouse egg activation by regulating cell cycle resumption.

Johannes Backs, Paula Stein, Thea Backs, Francesca E Duncan, Chad E Grueter, John McAnally, Xiaoxia Qi, Richard M Schultz, Eric N Olson

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
9.2field-weighted citation impact, top 2% 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

68 citing papers in PubMed, 120 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. CaMKII as a Therapeutic Target in Cardiovascular Disease.Annual review of pharmacology and toxicology · 2023
    Review
  11. Article
  12. Emerging Antiarrhythmic Drugs for Atrial Fibrillation.International journal of molecular sciences · 2022
    Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Review
  19. Review
  20. Article

8 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 2 countries.

Johannes BacksDepartment of Cardiology, University of Heidelberg, 69120 Heidelberg, Germany.
Paula Stein
Thea Backs
Francesca E Duncan
Chad E Grueter
John McAnally
Xiaoxia Qi
Richard M Schultz
Eric N Olson
The University of Texas Southwestern Medical Center · USUniversity of Pennsylvania · USHeidelberg University · DE

Funding

MECHANISMS OF MAMMALIAN FERTILIZATION/POLYSPERMY BLOCKR01HD022732 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI SCHULTZ, RICHARD MORRIS · 1987 to 2012
$4.3M
RESEARCH AND TRAINING IN REPRODUCTIVE BIOLOGYT32HD007305 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI COUTIFARIS, CHRISTOS · 1986 to 2010
$1.8M
NICHD NIH HHS HD22732NICHD NIH HHS R01 HD022732NICHD NIH HHS T32 HD007305NICHD NIH HHS T32 HD 007305 22
6 · The paper itself

Abstract

Fertilization triggers a rise in intracellular Ca(2+) concentration ([Ca(2+)](i)) in the egg that initiates a series of events known as egg activation. These events include cortical granule exocytosis that establishes a block to polyspermy, resumption of meiosis, and recruitment of maternal mRNAs into polysomes for translation. Several calcium-dependent proteins, including calcium/calmodulin-dependent protein kinase II (CaMKII), have been implicated in egg activation. However, the precise role of CaMKII in mediating specific events of egg activation and the identity of the isoform(s) present in mouse eggs have not been unequivocally established. Through targeted deletion of the gamma isoform of CaMKII, we find that CaMKIIgamma is the predominant CaMKII isoform in mouse eggs and that it is essential for egg activation. Although CaMKIIgamma(-/-) eggs exhibit a normal pattern of Ca(2+) oscillations after insemination and undergo cortical granule exocytosis, they fail to resume meiosis or to recruit maternal mRNAs. Surprisingly, we find that the recruitment of maternal mRNAs does not directly depend on CaMKII, but requires elevated [Ca(2+)](i) and metaphase II exit. We conclude that CaMKIIgamma specifically controls mouse egg activation by regulating cell cycle resumption.

Indexed as

OocytesAnimalsCalciumCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium SignalingCell CycleCytoplasmic GranulesExocytosisFemaleFertilizationInfertility, FemaleIsoenzymesMaleMiceMice, KnockoutCalciumCalcium-Calmodulin-Dependent Protein Kinase Type 2Isoenzymes

Identifiers

PMID19966304
PMCPMC2806780
OpenAlexW2001589641

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.