Volume 32, Issue 8 (November 2021)
Studies in Medical Sciences 2021, 32(8): 572-580 |
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Saki Hosseini M, Doosti A, Pezeshki M. GENERATION OF A GENE CONSTRUCT TO SIPA GENE DELETION OF SALMONELLA TYPHIMURIUM. Studies in Medical Sciences 2021; 32 (8) :572-580
URL: http://umj.umsu.ac.ir/article-1-5412-en.html
URL: http://umj.umsu.ac.ir/article-1-5412-en.html
Assistant Professor, Department of Genetics, Islamic Azad University, Shahrekord Branch, Shahrekord, Iran (Corresponding Author) , m.saki.hoseini@gmail.com
Abstract: (2344 Views)
Background & Aims: Salmonella Typhimurium is a negative-gram, non-spore, free capsule, moving bacteria with Trish Perry flagella. Salmonella is the most common cause of food poisoning. The ability to enter and survive in host cells is the condition for pathogenic Salmonella species. Proteins of invasive Salmonella are transferred to the host cells by bacteria. This study was performed for generation of a gene construct to SipA gene deletion of Salmonella Typhimurium and its cloning in E.Coli bacteria.
Materials & Methods: This laboratory study was conducted in biotechnology research center of Islamic Azad University Shahrekord Branch from September 2017 to May 2018. In this study, 5' and 3' sequence of SipA gene was amplified by the specific primers and PCR method. Then, each of these sequences was cloned by the T/A cloning method in pGEM-Teasy vector and then was transformed into E.Coli bacteria. Using the PCR method, the part related to each region was amplified and confirmed. The final confirmation of the produced construct was performed by the Xbal and Xhol enzymes.
Results: The results indicated the successful cloning of the target gene in E.Coli and generation of a gene construct with a length of the 1520 bp. Also, pET32 vector with a length of 5900 bp was the best vector for the admission construct.
Conclusion: Based on the results, it seems that by inserting a gene, the damaged gene can be deleted and it can be used in the future research as a gene vaccine against Salmonellosis. Also, the target gene can be deleted with electroporation method and transferred into Salmonella Typhimurium, and due to the similarities between upstream and downstream gene sequences of sipA and Kan genes, homologous recombination between these two genes can occur and pathogenic genes will be removed.
Materials & Methods: This laboratory study was conducted in biotechnology research center of Islamic Azad University Shahrekord Branch from September 2017 to May 2018. In this study, 5' and 3' sequence of SipA gene was amplified by the specific primers and PCR method. Then, each of these sequences was cloned by the T/A cloning method in pGEM-Teasy vector and then was transformed into E.Coli bacteria. Using the PCR method, the part related to each region was amplified and confirmed. The final confirmation of the produced construct was performed by the Xbal and Xhol enzymes.
Results: The results indicated the successful cloning of the target gene in E.Coli and generation of a gene construct with a length of the 1520 bp. Also, pET32 vector with a length of 5900 bp was the best vector for the admission construct.
Conclusion: Based on the results, it seems that by inserting a gene, the damaged gene can be deleted and it can be used in the future research as a gene vaccine against Salmonellosis. Also, the target gene can be deleted with electroporation method and transferred into Salmonella Typhimurium, and due to the similarities between upstream and downstream gene sequences of sipA and Kan genes, homologous recombination between these two genes can occur and pathogenic genes will be removed.
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