The KsgA/Dim1 protein family of rRNA adenine dimethyltransferase (rAD) is well conserved throughout evolution. This protein family has been recognized to play multiple additional roles: as a mitochondrial transcription factor (mtTFB); as a yeast pre-rRNA cleavage enzyme (Dim1p); and as a chloroplast developmental protein (PFC1). Comprehensive phylogenetic analysis of rAD led to three main findings. First, rAD sequences were grouped by three domains of life, bacteria, archaea, and eukaryotes. Second, mtTFB shows alpha-proteobacterial endosymbiotic ancestry. Third, plastid-targeted rADs do not show cyanobacterial affiliation. Instead, plastid-targeted homologs from chlorophytes/land plants were clustered with chlamydiae, while those from rhodophytes/red algal lineage grouped with the bacteroides/chlorobi group. These unusual two-bacterial ancestries of plastid-targeted rAD suggest that bacterial genes influenced the evolution of the proteome of eukaryotic plastids in a complex way, involving more diverse bacterial groups than previously believed, and underscoring the importance of eukaryotic acquisition of bacterial functions.
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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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