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Journal of Bacteriology, June 2006, p. 4142-4147, Vol. 188, No. 11
0021-9193/06/$08.00+0     doi:10.1128/JB.00173-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

Utilization of the Methoxymalonyl-Acyl Carrier Protein Biosynthesis Locus for Cloning the Oxazolomycin Biosynthetic Gene Cluster from Streptomyces albus JA3453

Chunhua Zhao,1 Jianhua Ju,2 Steven D. Christenson,2 Wyatt C. Smith,2 Danfeng Song,1 Xiufen Zhou,1 Ben Shen,2,3,4,5* and Zixin Deng1*

Laboratory of Microbial Metabolism and School of Life Science and Biotechnology, Shanghai Jiaotong University, Shanghai 200030, China,1 Department of Chemistry, University of California, Davis, California 95616,2 Division of Pharmaceutical Sciences,3 University of Wisconsin National Cooperative Drug Discovery Group,4 Department of Chemistry, University of Wisconsin, Madison, Wisconsin 537055

Received 1 February 2006/ Accepted 20 March 2006

Oxazolomycin (OZM), a hybrid peptide-polyketide antibiotic, exhibits potent antitumor and antiviral activities. Using degenerate primers to clone genes encoding methoxymalonyl-acyl carrier protein (ACP) biosynthesis as probes, a 135-kb DNA region from Streptomyces albus JA3453 was cloned and found to cover the entire OZM biosynthetic gene cluster. The involvement of the cloned genes in OZM biosynthesis was confirmed by deletion of a 12-kb DNA fragment containing six genes for methoxymalonyl-ACP biosynthesis from the specific region of the chromosome, as well as deletion of the ozmC gene within this region, to generate OZM-nonproducing mutants.

* Corresponding author. Mailing address for Ben Shen: Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin—Madison, 777 Highland Ave., Madison, WI 53705. Phone: (608) 263-2673. Fax: (608) 262-5345. E-mail: bshen{at}pharmacy.wisc.edu. Mailing address for Zixin Deng: Laboratory of Microbial Metabolism, Shanghai Jiaotong University, Shanghai 200030, China. Phone: 86 21 62933404. E-mail: zxdeng{at}sjtu.edu.cn.

Journal of Bacteriology, June 2006, p. 4142-4147, Vol. 188, No. 11
0021-9193/06/$08.00+0     doi:10.1128/JB.00173-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Zhou, Y., Meng, Q., You, D., Li, J., Chen, S., Ding, D., Zhou, X., Zhou, H., Bai, L., Deng, Z. (2008). Selective Removal of Aberrant Extender Units by a Type II Thioesterase for Efficient FR-008/Candicidin Biosynthesis in Streptomyces sp. Strain FR-008. Appl. Environ. Microbiol. 74: 7235-7242 [Abstract] [Full Text]  


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