Atg1 is a Serine/Threonine protein kinase that plays a pivotal role in autophagy. A complete coding sequence of ATG1 is not available for the silkworm, Bombyx mori which is a good model for studying the autophagic process. In the present study we isolated two full-length cDNAs of 2175 (transcript variant A) and 2271 (transcript variant B) bases representing ATG1 in the silkworm. Phylogenetic analysis indicated that BmATG1 was closely related to orthologs of other insects. The encoded BmAtg1 proteins shared extensive homology with orthologs from yeast to mammals, showing high conservation at the N-terminal region where the catalytic domain and ATP- and Mg-binding sites are located. A de novo prediction of the three-dimensional structure for each protein is presented. We used real-time RT-PCR to quantify dynamic changes in mRNA copy number of BmATG1 in the midgut and fat body of fifth instar larvae undergoing starvation, as well as in other tissues of silkworm at the end of last larval instar. Our qPCR results revealed that BmATG1 expression levels at the end of larval life were comparable in the midgut, fat body and Malpighian tubules, while these were higher in the gonads; moreover, the mRNA copy number of ATG1 was very different among the anterior, middle and posterior silk glands. Real-time PCR analysis also showed that starvation significantly influenced BmATG1 mRNA copy number in the fat body of silkworm, inducing an upregulation 24h after food withdrawal, with only a slight effect in the midgut. Low expression levels of BmATG1 were observed in both tissues of control animals up to the second day of spinning phase.
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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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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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