ArticleNucleic acids research2023
Biochemical characterisation of Mer3 helicase interactions and the protection of meiotic recombination intermediates.
Article in Nucleic acids research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 15 citations in OpenAlex.
- Mechanisms That Govern Recombinase Fidelity Control During Eukaryotic Homologous Recombination.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026Review
- Distinct and overlapping roles of MutLγ, Mus81-Mms4, and STR in meiotic Holliday junction processing.Nature communications · 2026Article
- RPA directly stimulates Mer3 helicase processivity to ensure normal crossover formation in meiosis.Nature communications · 2026Article
- A homozygous variant in HFM1 causes preimplantation embryo developmental arrest by disrupting zygotic genome activation.Human reproduction (Oxford, England) · 2026Article
- Mismatch repair MLH complexes make distinct contributions to post-replicative mismatch repair versus trinucleotide repeat expansions.bioRxiv : the preprint server for biology · 2026Article
- Targeted genetic manipulation and yeast-like evolutionary genomics in the green alga Auxenochlorella.The Plant cell · 2025Article
- Targeted genetic manipulation and yeast-like evolutionary genomics in the green algabioRxiv : the preprint server for biology · 2025Article
- Rad51, Rad54, and ZMM proteins antagonize the mismatch repair system to promote fertility of budding yeast intraspecies hybrid zygotes.Nucleic acids research · 2025Article
- The molecular machinery of meiotic recombination.Biochemical Society transactions · 2024Review
- The Dmc1 recombinase physically interacts with and promotes the meiotic crossover functions of the Mlh1-Mlh3 endonuclease.bioRxiv : the preprint server for biology · 2023Article
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Authors and funding
9 authors at 3 institutions in 1 country.
Funding
Abstract
Crossing over between homologs is critical for the stable segregation of chromosomes during the first meiotic division. Saccharomyces cerevisiae Mer3 (HFM1 in mammals) is a SF2 helicase and member of the ZMM group of proteins, that facilitates the formation of the majority of crossovers during meiosis. Here, we describe the structural organisation of Mer3 and using AlphaFold modelling and XL-MS we further characterise the previously described interaction with Mlh1-Mlh2. We find that Mer3 also forms a previously undescribed complex with the recombination regulating factors Top3 and Rmi1 and that this interaction is competitive with Sgs1BLM helicase. Using in vitro reconstituted D-loop assays we show that Mer3 inhibits the anti-recombination activity of Sgs1 helicase, but only in the presence of Dmc1. Thus we provide a mechanism whereby Mer3 interacts with a network of proteins to protect Dmc1 derived D-loops from dissolution.
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