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CRL2LRR-1 E3-Ligase Regulates Proliferation and Progression through Meiosis in the Caenorhabditis elegans Germline

Journal Article · · PLoS Genetics
 [1];  [2];  [2];  [2];  [3];  [4];  [5];  [2]
  1. Universite Paris Diderot, Sorbonne Paris Cite, Paris (France). Centre National de la Recherche Scientifique (CNRS). Institut Jacques Monod; DOE/OSTI
  2. Universite Paris Diderot, Sorbonne Paris Cite, Paris (France). Centre National de la Recherche Scientifique (CNRS). Institut Jacques Monod
  3. Friedrich Miescher Inst. for Biomedical Research, Basel (Switzerland)
  4. Friedrich Miescher Inst. for Biomedical Research, Basel (Switzerland)
  5. Univ. of Oregon, Eugene, OR (United States). Inst. of Molecular Biology

The ubiquitin-proteolytic system controls the stability of proteins in space and time. In this study, using a temperature sensitive mutant allele of the cul-2 gene, we show that CRL2LRR-1 (CUL-2 RING E3 ubiquitin-ligase and the Leucine Rich Repeat 1 substrate recognition subunit) acts at multiple levels to control germline development. CRL2LRR-1 promotes germ cell proliferation by counteracting the DNA replication ATL-1 checkpoint pathway. CRL2LRR-1 also participates in the mitotic proliferation/meiotic entry decision, presumably controlling the stability of meiotic promoting factors in the mitotic zone of the germline. Finally, CRL2LRR-1 inhibits the first steps of meiotic prophase by targeting in mitotic germ cells degradation of the HORMA domain-containing protein HTP-3, required for loading synaptonemal complex components onto meiotic chromosomes. Given its widespread evolutionary conservation, CUL-2 may similarly regulate germline development in other organisms as well.

Research Organization:
Univ. of Oregon, Eugene, OR (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); National Institutes of Health (NIH)
OSTI ID:
1627299
Journal Information:
PLoS Genetics, Journal Name: PLoS Genetics Journal Issue: 3 Vol. 9; ISSN 1553-7404
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (14)

Genome analysis of Diploscapter coronatus: insights into molecular peculiarities of a nematode with parthenogenetic reproduction journal June 2017
The structure and regulation of Cullin 2 based E3 ubiquitin ligases and their biological functions journal March 2016
PRP-19, a conserved pre-mRNA processing factor and E3 ubiquitin ligase, inhibits the nuclear accumulation of GLP-1/Notch intracellular domain journal July 2018
A Quality Control Mechanism Coordinates Meiotic Prophase Events to Promote Crossover Assurance journal April 2014
The TRIM-NHL Protein LIN-41 Controls the Onset of Developmental Plasticity in Caenorhabditis elegans journal August 2014
CDK-1 and Two B-Type Cyclins Promote PAR-6 Stabilization during Polarization of the Early C. elegans Embryo journal February 2015
LIN-23, an E3 Ubiquitin Ligase Component, Is Required for the Repression of CDC-25.2 Activity during Intestinal Development in Caenorhabditis elegans journal November 2016
Regulation of the MEI-1/MEI-2 Microtubule-Severing Katanin Complex in EarlyCaenorhabditis elegansDevelopment journal October 2016
RNAi-Based Suppressor Screens Reveal Genetic Interactions Between the CRL2LRR-1 E3-Ligase and the DNA Replication Machinery inCaenorhabditis elegans journal October 2016
Unravelling the proteomic profile of rice meiocytes during early meiosis journal July 2014
Multiple Aspects of PIP2 Involvement in C. elegans Gametogenesis journal September 2018
PUF-8 facilitates homologous chromosome pairing by promoting proteasome activity during meiotic entry in C. elegans journal January 2018
Distinct functions and temporal regulation of methylated histone H3 during early embryogenesis journal January 2019
CRL4 regulates recombination and synaptonemal complex aggregation in the Caenorhabditis elegans germline journal November 2019

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