ArticleMolecular biology of the cell2018
The meiosis-specific Cdc20 family-member Ama1 promotes binding of the Ssp2 activator to the Smk1 MAP kinase.
Article in Molecular biology of the cell, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 7 citations in OpenAlex.
- A minimal model for the role of Rim4 in regulating meiotic exit in budding yeast.Molecular biology of the cell · 2026Article
- The MAPK homolog, Smk1, promotes assembly of the glucan layer of the spore wall in S. cerevisiae.Yeast (Chichester, England) · 2024Article
- Meiotic Cytokinesis inJournal of fungi (Basel, Switzerland) · 2024Review
- Distinct requirements for the COMPASS core subunits Set1, Swd1, and Swd3 during meiosis in the budding yeast Saccharomyces cerevisiae.G3 (Bethesda, Md.) · 2021Article
- Isc10, an Inhibitor That Links the Anaphase-Promoting Complex to a Meiosis-Specific Mitogen-Activated Protein Kinase.Molecular and cellular biology · 2020Article
- RNA Recognition-like Motifs Activate a Mitogen-Activated Protein Kinase.Biochemistry · 2018Article
- Yeast can accommodate phosphotyrosine: v-Src toxicity in yeast arises from a single disrupted pathway.FEMS yeast research · 2018Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
Smk1 is a meiosis-specific MAP kinase (MAPK) in budding yeast that is required for spore formation. It is localized to prospore membranes (PSMs), the structures that engulf haploid cells during meiosis II (MII). Similar to canonically activated MAPKs, Smk1 is controlled by phosphorylation of its activation-loop threonine (T) and tyrosine (Y). However, activation loop phosphorylation occurs via a noncanonical two-step mechanism in which 1) the cyclin-dependent kinase activating kinase Cak1 phosphorylaytes T207 during MI, and 2) Smk1 autophosphorylates Y209 as MII draws to a close. Autophosphorylation of Y209 and catalytic activity for substrates require Ssp2, a meiosis-specific protein that is translationally repressed until anaphase of MII. Ama1 is a meiosis-specific targeting subunit of the anaphase-promoting complex/cyclosome that regulates multiple steps in meiotic development, including exit from MII. Here, we show that Ama1 activates autophosphorylation of Smk1 on Y209 by promoting formation of the Ssp2/Smk1 complex at PSMs. These findings link meiotic exit to Smk1 activation and spore wall assembly.
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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.