Chapter title |
Application of In Vitro Transposon Mutagenesis to Erythromycin Strain Improvement in Saccharopolyspora erythraea.
|
---|---|
Chapter number | 17 |
Book title |
In Vitro Mutagenesis
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Published in |
Methods in molecular biology, January 2017
|
DOI | 10.1007/978-1-4939-6472-7_17 |
Pubmed ID | |
Book ISBNs |
978-1-4939-6470-3, 978-1-4939-6472-7
|
Authors |
J. Mark Weber, Andrew Reeves, William H. Cernota, Roy K. Wesley |
Editors |
Andrew Reeves |
Abstract |
Transposon mutagenesis is an invaluable technique in molecular biology for the creation of random mutations that can be easily identified and mapped. However, in the field of microbial strain improvement, transposon mutagenesis has scarcely been used; instead, chemical and physical mutagenic methods have been traditionally favored. Transposons have the advantage of creating single mutations in the genome, making phenotype to genotype assignments less challenging than with traditional mutagens which commonly create multiple mutations in the genome. The site of a transposon mutation can also be readily mapped using DNA sequencing primer sites engineered into the transposon termini. In this chapter an in vitro method for transposon mutagenesis of Saccharopolyspora erythraea is presented. Since in vivo transposon tools are not available for most actinomycetes including S. erythraea, an in vitro method was developed. The in vitro method involves a significant investment in time and effort to create the mutants, but once the mutants are made and screened, a large number of highly relevant mutations of direct interest to erythromycin production can be found. |
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