Metazoan fatty acid (FA) synthases (mFASs) facilitate the de novo synthesis of C16- and C18-FAs through iterative extensions within the FA cycle and hydrolytic release. Here we re-engineer mFAS to fine-tune the interplay between FA extension and FA hydrolytic release for the targeted production of short- and medium-chain fatty acids. Single amino acid exchanges in the ketosynthase domain can redirect FA product profiles from predominantly C8 (G113W) to C8/C10 (G113F) and C12/C14 (G113M). Integration of a thioreductase domain enables the production of medium-chain fatty aldehydes and alcohols. We apply our approach for controlling chain length in FA biosynthesis to the microbial production of C10- and C12-FAs, translate it into a yeast cell factory and achieve C10/C12-FAs titers of 674 mg l-1 and 67% purity of total free FAs. Our work demonstrates a modular platform for programmable FA synthesis and paves the way toward sustainable bioproduction of valuable oleochemicals.
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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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