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A Nonribosomal Peptide Synthetase Gene tzw1 Is Involved in Zwittermicin A Biosynthesis in Bacillus thuringiensis G03

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Abstract

A 4.20-kb SspI fragment from Bacillus thuringiensis G03 was cloned and sequenced. Sequencing analysis revealed two complete open reading frames (ORF; tzw1 and tzw2), and one incomplete ORF (tzw3) (GenBank accession no. EU293887). Tzw1 encodes a putative nonribosomal peptide synthetase with thiolation and condensation domains localized at the C-termini, whereas tzw2 and tzw3 encode acyl carrier protein and Acyl-CoA dehydrogenase, respectively. To investigate the function of tzw1 in zwittermicin A (ZA) biosynthesis, an in-frame deletion of 1,461 bp within tzw1 was constructed. The mutant abolished ZA production. Complementation of the mutant with cloned tzw1 restored ZA productivity. These results revealed that tzw1 is required for ZA biosynthesis in B. thuringiensis G03.

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Acknowledgments

This work was supported by grants from National 973 Plan Program of China (Grant No. 2003CB114201) and grants from National 863 Plan Program of China (Grant Nos. 2006AA02Z189 and 2006AA10A212).

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Authors and Affiliations

  1. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100094, PRC

    Tiemei Shao, Jie Zhang, Guangjun Wang, Zhuofu Li, Jianmi Liu & Fuping Song

  2. Laboratory of Microbial Metabolism and School of Life Science and Biotechnology, Shanghai Jiaotong University, Shanghai, 200030, PRC

    Linquan Bai

  3. College of Plant Protection, Agricultural University of Hebei, Baoding, 071001, PRC

    Daqun Liu

  4. Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, PRC

    Dafang Huang

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  1. Tiemei Shao
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  2. Linquan Bai
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  3. Jie Zhang
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  4. Guangjun Wang
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  5. Daqun Liu
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  6. Zhuofu Li
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  7. Jianmi Liu
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  9. Dafang Huang
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Correspondence to Dafang Huang.

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Shao, T., Bai, L., Zhang, J. et al. A Nonribosomal Peptide Synthetase Gene tzw1 Is Involved in Zwittermicin A Biosynthesis in Bacillus thuringiensis G03. Curr Microbiol 57, 61–65 (2008). https://doi.org/10.1007/s00284-008-9153-5

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  • DOI: https://doi.org/10.1007/s00284-008-9153-5

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