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Tanaffos، جلد ۱۷، شماره ۳، صفحات ۱۹۸-۲۰۲
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عنوان انگلیسی Designing and Construction of a Cloning Vector Containing mpt64 Gene of Mycobacterium tuberculosis
چکیده انگلیسی مقاله Background: Tuberculosis caused by Mycobacterium tuberculosis (M. tuberculosis), remains as one of the leading causes of deaths worldwide, with nearly two million death cases annually. BCG (Bacille Calmette-Guerin) continues to be the most widely used vaccine in the world, but the protective immunity differs in different parts of the world. Accordingly, new strategies including DNA vaccines are essentially needed. This study was aimed to design and construct a cloning vector containing mpt64 gene of M. tuberculosis. Materials and Methods: M. tuberculosis H37Rv was cultured on Lowenstein Jensen medium, and genomic DNA was extracted. The mpt64 gene was amplified by PCR using designed specific primers. After the digestion of mpt64 and pcDNA3.1 (+) by BamHI and EcoRI restriction enzymes, the mpt64 fragment was ligated into the digested vector using T4 DNA ligase enzyme. Then, the recombinant vector was transformed into competent Escherichia coli (E. coli) TOP10 strain. To confirm the colonies of transformed bacteria, antibiotic resistance, colony-PCR, restriction enzyme digestion and DNA sequencing were used. Results: To confirm the clones, colony-PCR using mpt64 specific primers was performed and the fragment of 718 bp was observed by gel electrophoresis. Clones were also verified by restriction enzyme digestion using BamHI and EcoRI restriction enzymes and the 718 bp fragment was observed. Furthermore, results of DNA sequencing showed 100% homology with the mpt64 fragment of H37Rv in GenBank. Conclusion: In this study, the mpt64 fragment was successfully cloned in pcDNA3.1 (+) vector. This construct can be used in future studies as a DNA vaccine in animal models to induce immune system responses.
کلیدواژه‌های انگلیسی مقاله Mycobacterium tuberculosis,DNA Vaccine,cloning vector,mpt64
نویسندگان مقاله Hosna Zare |
Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.

Ehsan Aryan |
Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran

Shadi Alami |
Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.

Atieh Yaghoubi |
Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.

Roghayeh Teimourpour |
Department of Microbiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran

Zahra Meshkat |
Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran

نشانی اینترنتی https://www.tanaffosjournal.ir/article_240057_743b3cb0b24f3213b5534854faef5bd9.pdf
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