ArticlePLoS genetics2018
Mek1 coordinates meiotic progression with DNA break repair by directly phosphorylating and inhibiting the yeast pachytene exit regulator Ndt80.
Article in PLoS genetics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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30 citing papers in PubMed, 51 citations in OpenAlex.
- Polo-like kinase Cdc5 orchestrates Cdk1 regulation via Swe1 and Mih1 during meiotic prophase I exit.Communications biology · 2026Article
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- Distinct cellular and reproductive consequences of meiotic chromosome synapsis defects in syce2 and sycp1 mutant zebrafish.PLoS genetics · 2025Article
- Separable roles of the DNA damage response kinase Mec1ATR and its activator Rad24RAD17 during meiotic recombination.PLoS genetics · 2024Article
- Decoding the Nucleolar Role in Meiotic Recombination and Cell Cycle Control: Insights into Cdc14 Function.International journal of molecular sciences · 2024Review
- Membrane and organelle rearrangement during ascospore formation in budding yeast.Microbiology and molecular biology reviews : MMBR · 2024Review
- Chk2 homolog Mek1 limits exonuclease 1-dependent DNA end resection during meiotic recombination in Saccharomyces cerevisiae.Genetics · 2024Article
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- An acidic loop in the FHA domain of the yeast meiosis-specific kinase Mek1 interacts with a specific motif in a subset of Mek1 substrates.bioRxiv : the preprint server for biology · 2024Article
- Replication protein-A, RPA, plays a pivotal role in the maintenance of recombination checkpoint in yeast meiosis.Scientific reports · 2024Article
- The molecular machinery of meiotic recombination.Biochemical Society transactions · 2024Review
- Exportin-mediated nucleocytoplasmic transport maintains Pch2 homeostasis during meiosis.PLoS genetics · 2023Article
- Meiosis in budding yeast.Genetics · 2023Article
- Kar4 is required for the normal pattern of meiotic gene expression.PLoS genetics · 2023Article
- Recruitment of the lipid kinase Mss4 to the meiotic spindle pole promotes prospore membrane formation inMolecular biology of the cell · 2023Article
- Kar4 is Required for the Normal Pattern of Meiotic Gene Expression.bioRxiv : the preprint server for biology · 2023Article
- PCH-2 and meiotic HORMADs: A module for evolutionary innovation in meiosis?Current topics in developmental biology · 2023Review
- Rad51-mediated interhomolog recombination during budding yeast meiosis is promoted by the meiotic recombination checkpoint and the conserved Pif1 helicase.PLoS genetics · 2022Article
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8 authors at 1 institution in 1 country.
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Abstract
Meiotic recombination plays a critical role in sexual reproduction by creating crossovers between homologous chromosomes. These crossovers, along with sister chromatid cohesion, connect homologs to enable proper segregation at Meiosis I. Recombination is initiated by programmed double strand breaks (DSBs) at particular regions of the genome. The meiotic recombination checkpoint uses meiosis-specific modifications to the DSB-induced DNA damage response to provide time to convert these breaks into interhomolog crossovers by delaying entry into Meiosis I until the DSBs have been repaired. The meiosis-specific kinase, Mek1, is a key regulator of meiotic recombination pathway choice, as well as being required for the meiotic recombination checkpoint. The major target of this checkpoint is the meiosis-specific transcription factor, Ndt80, which is essential to express genes necessary for completion of recombination and meiotic progression. The molecular mechanism by which cells monitor meiotic DSB repair to allow entry into Meiosis I with unbroken chromosomes was unknown. Using genetic and biochemical approaches, this work demonstrates that in the presence of DSBs, activated Mek1 binds to Ndt80 and phosphorylates the transcription factor, thus inhibiting DNA binding and preventing Ndt80's function as a transcriptional activator. Repair of DSBs by recombination reduces Mek1 activity, resulting in removal of the inhibitory Mek1 phosphates. Phosphorylation of Ndt80 by the meiosis-specific kinase, Ime2, then results in fully activated Ndt80. Ndt80 upregulates transcription of its own gene, as well as target genes, resulting in prophase exit and progression through meiosis.
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