Genomic integration is the preferred method for gene expression in microbial industrial production. However, traditional homologous recombination based multiplexed integration methods often suffer from low integration efficiency and complex experimental procedures. Here, we report a CRISPR/Cas9 based multiplexed integration (CMI) system in Saccharomyces cerevisiae, which can achieve quadruple integration at an individual locus without pre-engineering the host. A fused protein, Cas9-Brex27, was used as a bait to attract Rad51 recombinase to the proximity of the double-strand breaks introduced by the CRISPR/Cas9 system. The efficiency of quadruple integration was increased to 53.9% with 40 bp homology arms (HAs) and 78% with 100 bp HAs. CMI was applied to integrate a heterologous mogrol biosynthetic pathway consisting of four genes in a one-step transformation and offered an efficient solution for multiplexed integration. This method expands the synthetic biology toolbox of S. cerevisiae.
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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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