Cloning and Characterisation of the aroA and aroD Genes of Shigella dysenteriae Type 1
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The aroA and aroD genes from Shigella dysenteriae type 1, encoding 5-enolpyruvylshikimate 3-phosphate synthase and 3-dehydroquinase, respectively, were cloned by polymerase chain reaction (PCR). Their nucleotide sequences were determined and predicted to code for 46kDa and 27.5kDa proteins, respectively. Protein expressed from these genes using the minicell system, corresponded to the size of the predicted protein products. The cloned genes were shown to be functional by complementation of Escherichia coli aroA- and aroD- mutants. The predicted amino acid sequences of the cloned aroA (427 amino acids) and aroD (252 amino acids) genes of S. dysenteriae type 1 were found to be highly homologous to the corresponding genes in other bacterial species, indicating the high conservation of these housekeeping genes. The use of the cloned aroA and aroD genes in the development of a vaccine strain against S. dysenteriae is discussed.
- 微生物学・免疫学学会連合の論文
微生物学・免疫学学会連合 | 論文
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