The anaphase-promoting complex/cyclosome (APC/C) is a multi-subunit ubiquitin-ligase whose major functions in the cell cycle are the initiation of sister chromatid separation and the inactivation of cyclin-dependent kinases. This complex is also essential for meiosis, a specialized form of the cell cycle characterized by two consecutive rounds of chromosome segregation. To ensure a proper meiotic cell cycle, the activity of APC/C needs to be tightly controlled. It is now evident that inhibitors of APC/C play pivotal roles to avert its untimely activation. During prophase I, this ubiquitin-ligase must be kept inactive to prevent precocious sister chromatid separation. Studies in yeast showed that this inhibition is mediated by a specific subunit of the complex. Accurate chromosome segregation in meiosis I depends on spindle checkpoint proteins such as Mad2 which delay APC/C activation in response to an erroneous spindle attachment of chromosomes. Additional APC/C antagonists are known to block complete cyclin destruction between meiosis I and II, thereby ensuring that cyclin dependent kinases remain active and that DNA replication does not occur. Inhibitors of APC/C also mediate the cytostatic factor induced metaphase II arrest of oocytes. This review highlights the current knowledge about the role and relevance of these diverse regulators of the meiotic APC/C.
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Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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Site | Modification | Modifier | Source | Reference |
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Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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