Construction of efficient microbial cell factories always requires assembling biosynthetic pathways and rewiring cellular metabolism with overexpression of multiple genes. Genomic integration is considered to be helpful for stable gene expression in compared with the episomal plasmids. However, the limited availability of suitable loci hinders the extensive metabolic engineering. We here characterized 30 neutral sites in Saccharomyces cerevisiae genome that did not affect cellular fitness by using expression cassettes of green fluorescent protein (eGFP) and fatty acyl-CoA reductase (MaFAR1) with the aid of efficient CRISPR-Cas9 technique. We found that integration of gene expression cassettes to different genome loci resulted a varied GFP signal and fatty alcohol production, which showed that genomic loci could be used for tuning gene expression. The characterized set of neutral sites should be helpful for extensively metabolic engineering of S. cerevisiae for chemical production and other purposes.
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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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