Molecular cloning of the ViaB region of Salmonella typhi.

作者: Takayuki Ezaki , Yasuhiro Hashimoto , Na Li , Hiroyuki Yamamoto

DOI: 10.1016/0378-1097(91)90645-Q

关键词: MicrobiologyEscherichia coliDNAMolecular cloningSalmonella typhiSouthern blotPlasmidBiologyRecombinant DNAMolecular biologyCitrobacter freundii

摘要: The ViaB region required for Vi antigen production in Salmonella typhi was cloned. plasmid pGBM124 containing a 14-kb S. thypi chromosomal DNA fragment conferred the ability to produce on Escherichia coli HB101 and ViaB-deleted GIFU10007-3. Tn5 insertion analysis showed that split into three regions. Region 1 2 are involved biosynthesis of polysaccharide. 3 is translocation polysaccharide cell surface. Southern blot hybridization regions but not 1, were considerably homologous Vi-positive Citrobacter freundii.

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