Triglycerides (TG) are major storage lipids for eukaryotic cells. In this study, we characterized three genes of fission yeast Schizosaccharomyces pombe, SPCC1450.16c, SPAC1786.01c, and SPAC1A6.05c, that show high homology to Saccharomyces cerevisiae TG lipase genes, TGL3, TGL4, and TGL5. Deletion of each gene increased TG content by approximately 1.7-fold compared to the parental wild-type strain, and their triple deletion mutant further increased TG content to 2.7-fold of the wild-type strain, suggesting that all three genes encode TG lipase and are functioning in S. pombe. The triple deletion mutant showed no growth defect in rich and synthetic medium, but its growth was sensitive to cerulenin, an inhibitor of fatty acid synthesis. This growth defect by cerulenin was restored by adding oleic acid in media, suggesting that these genes were involved in the mobilization of TG in S. pombe. When ricinoleic acid was produced in the triple mutant by introducing CpFAH12 fatty acid hydroxylase gene from Claviceps purpurea, percent composition of ricinoleic acid increased by 1.1-fold compared to the wild-type strain, in addition to a 1.6-fold increase in total fatty acid content per dry cell weight (DCW). In total, the ricinoleic acid production per DCW increased by 1.8-fold in the triple deletion mutant.
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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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