Only a small fraction of the bacterial diversity present in natural microbial communities is regularly cultured in the laboratory. Those bacteria that remain recalcitrant to culturing cannot be examined for the production of bioactive secondary metabolites using standard pure-culture approaches. The screening of genomic DNA libraries containing DNA isolated directly from environmental samples (environmental DNA (eDNA)) provides an alternative approach for studying the biosynthetic capacities of these organisms. One drawback of this approach has been that most eDNA isolation procedures do not permit the cloning of DNA fragments of sufficient length to capture large natural product biosynthetic gene clusters in their entirety. Although the construction of eDNA libraries with inserts big enough to capture biosynthetic gene clusters larger than ∼40kb remains challenging, it is possible to access large gene clusters by reassembling them from sets of smaller overlapping fragments using transformation-associated recombination in Saccharomyces cerevisiae. Here, we outline a method for the reassembly of large biosynthetic gene clusters from captured sets of overlapping soil eDNA cosmid clones. Natural product biosynthetic gene clusters reassembled using this approach can then be used directly for functional heterologous expression studies.
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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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Increase the total number of rows showing on this page by using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table; click on the small "i" buttons located within a cell for an annotation to view further details about experiment type and any other genes involved in the interaction.
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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