Paper Report for: van Pee_1988_J.Bacteriol_170_5890
Reference
Title: Molecular cloning and high-level expression of a bromoperoxidase gene from Streptomyces aureofaciens Tu24 van Pee KH Ref: Journal of Bacteriology, 170:5890, 1988 : PubMed
A bromoperoxidase gene was cloned from Streptomyces aureofaciens T24 into Streptomyces lividans TK64 by using the promoter-probe vector pIJ486. Subcloning of DNA from the original, unstable clone allowed the gene to be localized to a 1.7-kilobase (kb) fragment of DNA. Southern blotting showed that the cloned 1.7-kb insert hybridized to a 4.3-kb fragment in an SstI digest of S. aureofaciens T24 total DNA. The 1.7-kb insert was shown to code for a protein with the electrophoretic properties of the subunits of the nonheme bromoperoxidase isolated from S. aureofaciens T24. The protein produced by S. lividans TK64 transformed with pHM621, which contained an 8.0-kb insert, was shown to be identical to the S. aureofaciens T24 bromoperoxidase in terms of its electrophoretic mobility on denaturing and nondenaturing polyacrylamide gels and its NH2-terminal amino acid sequence. The bromoperoxidase was overproduced (up to 180 times) by S. lividans TK64 containing pHM621. Based on the heat stability of the S. aureofaciens T24 bromoperoxidase, a new and simple purification procedure with very high yields was developed.
        
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Citations formats
van Pee KH (1988) Molecular cloning and high-level expression of a bromoperoxidase gene from Streptomyces aureofaciens Tu24 Journal of Bacteriology170: 5890-4
van Pee KH (1988) Journal of Bacteriology170: 5890-4