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Sequence analysis of plasmid in Klebsiella pneumoniae KF3 / 中华微生物学和免疫学杂志
Chinese Journal of Microbiology and Immunology ; (12): 892-896, 2010.
Article in Chinese | WPRIM | ID: wpr-383108
ABSTRACT
Objective To study the structures of the plasmids of Klebsiella pneumoniae KF3 at the genome metagenome level througth with whole plasmid DNA sequencing, to analyze the functional genes carried by plasmid and to identify the correlation of resistance and pathogenicity between the plasmids and the host strains. Methods The alkaline lysis method was used to extract plasmids. We constructed the small insert pUC18 library and the large insert Forsmid library, sequenced and used the Phred / Phrap / Consed package to assemble these sequences and gained a complete sequence. The open reading frame(ORFs) were predicted by the Glimmer software and annotated, analyzed the functions of these genes. Results We successfully constructed the pUC18 library and the Fosmid libraries for the plasmid DNA and obtained three circular double-stranded DNA plasmids pKF3-70 (69 477 bp), pKF3-90 (91 327 bp) and pKF3-147 ( 147 416 bp). There were drug resistant genes, conjugative transfer genes and mobile DNA elements identified on three plasmids. Conclusion The three plasmids of KF3 could be transferred among different strains. It would lead to the dissemination of the resistant genes.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Microbiology and Immunology Year: 2010 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Microbiology and Immunology Year: 2010 Type: Article