Gao, H., Murugesan, B., Hoßbach, J., Evans, S. K., Stark, W. M. and Smith, M. C.M. (2019) Integrating vectors for genetic studies in the rare Actinomycete Amycolatopsis marina. BMC Biotechnology, 19, 32. (doi: 10.1186/s12896-019-0521-y) (PMID:31164159) (PMCID:PMC6549336)
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Abstract
Background: Few natural product pathways from rare Actinomycetes have been studied due to the difficulty in applying molecular approaches in these genetically intractable organisms. In this study, we sought to identify more integrating vectors, using phage int/attP loci, that would efficiently integrate site-specifically in the rare Actinomycete, Amycolatopsis marina DSM45569. Results: Analysis of the genome of A. marina DSM45569 indicated the presence of attB-like sequences for TG1 and R4 integrases. The TG1 and R4 attBs were active in in vitro recombination assays with their cognate purified integrases and attP loci. Integrating vectors containing either the TG1 or R4 int/attP loci yielded exconjugants in conjugation assays from Escherichia coli to A. marina DSM45569. Site-specific recombination of the plasmids into the host TG1 or R4 attB sites was confirmed by sequencing. Conclusions: The homologous TG1 and R4 attB sites within the genus Amycolatopsis have been identified. The results indicate that vectors based on TG1 and R4 integrases could be widely applicable in this genus.
| Item Type: | Articles |
|---|---|
| Keywords: | Amycolatopsis, integrating vectors, R4 integrase, rare actinomycetes, TG1 integrase. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Stark, Professor Marshall |
| Authors: | Gao, H., Murugesan, B., Hoßbach, J., Evans, S. K., Stark, W. M., and Smith, M. C.M. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Molecular Biosciences |
| Journal Name: | BMC Biotechnology |
| Publisher: | BioMed Central |
| ISSN: | 1472-6750 |
| ISSN (Online): | 1472-6750 |
| Copyright Holders: | Copyright © 2019 The Authors |
| First Published: | First published in BMC Biotechnology 19: 32 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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