Construction and characterization of an unmarked aroC deletion mutant of Burkholderia pseudomallei strain A2.

dc.contributor.authorSrilunchang, Thitimaen_US
dc.contributor.authorProungvitaya, Tanakornen_US
dc.contributor.authorWongratanacheewin, Surasaken_US
dc.contributor.authorStrugnell, Richarden_US
dc.contributor.authorHomchampa, Preechaen_US
dc.date.accessioned2009-05-27T14:44:09Z
dc.date.available2009-05-27T14:44:09Z
dc.date.issued2009-01-28en_US
dc.descriptionThe Southeast Asian Journal of Tropical Medicine and Public Health.en_US
dc.description.abstractUsing a sucrose counter-selection strategy, we have constructed an unmarked aroC deletion mutant of B. pseudomallei strain A2 in order to investigate the possibility of an effective live-attenuated vaccine. The aroC deletion in the resultant mutant, designated A2DeltaaroC, was confirmed by PCR, Southern hybridization and failure of the mutant to grow in a defined medium without aromatic compounds. Compared to the parental wild type strain, A2DeltaaroC was highly attenuated for virulence following intraperitoneal introduction into BALB/c and C57BL/6 mice. BALB/c mice immunized intraperitoneally with A2DeltaaroC were not protected against a challenge dose of 500 cfu (25 x LD50) of the parental strain A2, whereas C57BL/6 mice similarly immunized intraperitoneally with A2DeltaaroC were significantly protected against a challenge dose of 6,000 cfu (20 x LD50).en_US
dc.description.affiliationDepartment of Clinical Immunology, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand.en_US
dc.identifier.citationSrilunchang T, Proungvitaya T, Wongratanacheewin S, Strugnell R, Homchampa P. Construction and characterization of an unmarked aroC deletion mutant of Burkholderia pseudomallei strain A2. The Southeast Asian Journal of Tropical Medicine and Public Health. 2009 Jan; 40(1): 123-30en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/30941
dc.language.isoengen_US
dc.source.urihttps://www.tm.mahidol.ac.th/seameo/2009-40-1/18-4417.pdfen_US
dc.titleConstruction and characterization of an unmarked aroC deletion mutant of Burkholderia pseudomallei strain A2.en_US
dc.typeJournal Articleen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
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