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Enzyme Microb Technol. 1991 Aug;13(8):661-4.

Design and use of synthetic oligonucleotide probes in the cloning of delta-endotoxin genes from Bacillus thuringiensis.

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  • 1Department of Botany, University of Nottingham, University Park, UK.

Abstract

A detailed protocol is described for the design and use of synthetic oligonucleotide probes for screening DNA libraries from Bacillus thuringiensis var. kurstaki (strain HD191) for copies of the gene (tox) encoding the insecticidal delta-endotoxin. Two homologous tox genes were identified in this organism; one of these was located on a 75-kb plasmid and the other on a second large plasmid or the bacterial chromosome. A tox gene was isolated as a 6.5-kb HindIII fragment of B. thuringiensis plasmid DNA.

PMID:
1369333
[PubMed - indexed for MEDLINE]
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