Abstract:
:Actinomycetes are the most important producers of secondary metabolites for medical, agricultural and industrial applications. Efficient engineering of bacterial genomes to improve their biosynthetic capabilities largely depends on the available arsenal of tools and vectors. One of the most widely used vector systems for actinomycetes is derived from the Streptomyces ghanaensis DSM2932 plasmid pSG5. pSG5 is a broad host range multicopy plasmid replicating via a rolling circle mechanism. The unique feature of pSG5, which distinguishes it from other Streptomyces plasmids, is its naturally thermosensitive mode of replication. This allows the efficient elimination of the plasmid from its host by simply shifting the incubation temperature to non-permissive 37-39 °C. This property makes pSG5 derivatives ideal facultative suicide vectors required for selection of gene disruption/gene replacement, transposon delivery or CRISPR/Cas9-mediated genome editing. Whereas these techniques depend on the fast elimination of the vector, stably replicating expression vectors for the production of recombinant proteins have been constructed more recently. This mini-review describes the generation and application of the pSG5 vector family, highlighting the specific features of the distinct vector plasmids.
journal_name
Appl Microbiol Biotechnoljournal_title
Applied microbiology and biotechnologyauthors
Muth Gdoi
10.1007/s00253-018-9334-5subject
Has Abstractpub_date
2018-11-01 00:00:00pages
9067-9080issue
21eissn
0175-7598issn
1432-0614pii
10.1007/s00253-018-9334-5journal_volume
102pub_type
杂志文章,评审abstract::The effect of the presence of supplementary glucose or acetate on the growth and pyridine-degrading activity of freely suspended and calcium-alginate-immobilized Pimelobacter sp. was investigated. Although the supplementary carbon sources could be degraded simultaneously with pyridine, Pimelobacter sp. exhibited a pre...
journal_title:Applied microbiology and biotechnology
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abstract::Candida albicans is the most common clinical pathogenic fungus, which is highly susceptible to immunodeficiency. Development of novel antifungal agents has become a growing trend in the treatment of Candida infections. C16-Fengycin A, a lipopeptide isolated from Bacillus amyloliquefaciens fmb60 showed significant fung...
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