Capping of the initiated 5' ends of RNA polymerase II products is evolutionarily and functionally conserved from yeasts to humans. The m(7)GpppN cap promotes RNA stability, processing, transport, and translation. Deletion of capping enzymes in yeasts was shown to be lethal due to rapid exonucleolytic degradation of uncapped transcripts or failure of capped but unmethylated RNA to initiate protein synthesis. Using RNA interference and Caenorhabditis elegans we have found that RNA capping is also essential for metazoan viability. C. elegans bifunctional capping enzyme was cloned, and capping activity by the expressed protein as well as growth complementation of yeast deletion strains missing either RNA triphosphatase or guanylyltransferase required terminal sequences not present in the previously isolated cel-1 clone. By RNA interference analysis we show that cel-1 is required for embryogenesis. cel-1(RNAi) embryos formed cytoplasmic granules characteristic of a phenocluster of RNA processing genes and died early in development.
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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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