Ebp2 has an essential role in the biogenesis of 60S ribosomal subunits. Synthetic-sick alleles with the ebp2-14 mutation were screened. The mutations were localized to the ARD1 and NAT1 genes, which encode the catalytic subunit and the auxiliary subunit of N(α)-acetyltransferase NatA respectively. Polysome analyses revealed that ard1Δ and nat1Δ caused a synergistic defect with ebp2-14 in the assembly of 60S ribosomal subunits. To identify the proteins that functionally interact with NatA, we designed mutants in which the second amino acid was substituted for proline in Ebp2 and functionally related proteins: Brx1, a partner of Ebp2 in ribosome biogenesis, and the ribosomal protein L36a/b, overexpression of which suppresses a growth defect in ebp2-14. Among these, only brx1-S2P exhibited a synthetic defect with ebp2-14. These results suggest that optimal NatA function is important to the cooperative function of Brx1 with Ebp2 in 60S ribosomal subunit biogenesis.
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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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| Evidence ID | Analyze ID | File | Description |
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