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Molecular cloning with a pMEA300-derived shuttle vector and characterization of the Amycolatopsis methanolica
J W Vrijbloed1, J van Hylckama Vlieg, N M van der Put
1Department of Microbiology, University of Groningen, Haren, The Netherlands.
Journal of Bacteriology
|November 1, 1995
Abstract:
An efficient restriction barrier for methylated DNA in the actinomycete Amycolatopsis methanolica could be avoided by using a nonmethylating Escherichia coli strain for DNA isolations. The A. methanolica prephenate dehydratase gene was cloned from a gene bank in a pMEA300-derived shuttle vector in E. coli and characterized.
Insights
Researchers bypassed Amycolatopsis methanolica
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- Actinomycetes like Amycolatopsis methanolica possess restriction systems that degrade foreign DNA.
- Efficient DNA isolation is crucial for genetic manipulation and molecular studies in these organisms.
Purpose of the Study:
- To overcome the restriction barrier in Amycolatopsis methanolica for successful gene cloning.
- To clone and characterize the prephenate dehydratase gene from A. methanolica in Escherichia coli.
Main Methods:
- Utilized a nonmethylating Escherichia coli strain for DNA isolation to circumvent restriction enzymes.
- Cloned the A. methanolica prephenate dehydratase gene using a pMEA300-derived shuttle vector.
- Characterized the cloned gene in the E. coli host.
Main Results:
- Successfully isolated and cloned the A. methanolica prephenate dehydratase gene in E. coli.
- Demonstrated that using a nonmethylating E. coli strain avoids the restriction barrier posed by A. methanolica.
Conclusions:
- Employing a nonmethylating E. coli host is an effective strategy for cloning genes from Amycolatopsis methanolica.
- This method facilitates genetic studies and manipulation of A. methanolica.