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Cloning and Expression of Urate Oxidase Gene Isolated from Marine Streptomyces in Escherichia coli Origami Bacteria
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Nayyereh Sadat Jenaban1    , Elahe Ali Asgari * 2, Kumarss Amini3 |
1- M.A in Biology, Department of Biology, East Tehran Branch, Islamic Azad University, Tehran, Iran.
2- Assistant Professor, Department of Biology, East Tehran Branch, Islamic Azad University, Tehran, Iran. , e.asgari@gmail.com
3- Associate Professor, Department of Microbiology, School of Basic Sciences, Saveh Branch, Islamic Azad University, Saveh, Iran. |
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Abstract: (4351 Views) |
Background and Objective: Streptomyces are gram-positive and aerobic bacterial strains that are isolated from different sources. Streptomyces have the ability to produce secondary metabolites and biologically active substances and are therefore very important in the field of biocontrol. Urate oxidase is a microbial enzyme product that can be extracted from a variety of sources, including streptomycin. In the present study, cloning of the urate oxidase gene isolated from seawater streptomycosis was performed in Escherichia coli Origami bacteria.
Methods: In this descriptive study, a total of 60 water and sediment samples were collected from different depths of the Caspian Sea coast in Mazandaran province, Iran. The Geram, staining methyl red, VP, citrate, starch hydrolysis, casein hydrolysis, nitrate reduction, oxidase and catalase tests were performed to identify and isolate Streptomyces. The urate oxidase gene was cloned using the T-A cloning method using the PTG-19 vector inside the host of Escherichia coli Origami. The expression of cloned genes in recombinant colonies was investigated by Real-Time PCR. The phylogenetic tree was drawn using clustalX and Mega5 software.
Results: Screening of marine water samples identified 12 isolated streptomyces, all of which had the urate oxidase gene. The expression of urate oxidase gene in Escherichia coli Origami was confirmed by Real-Time PCR. The results of phylogenetic studies identified some close relatives of Streptomyces as candidates for subsequent studies.
Conclusion: Streptococcus bacteria can be considered as a rich source of secondary metabolites with many applications and can be used as a native to produce the enzyme urate oxidase. By using different cloning hosts and examining optimal production conditions, this strain can be a candidate for future studies to develop antimicrobial drugs and compounds.
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Keywords: Cloning [MeSH], Urate Oxidase [MeSH], Real Time PCR [MeSH], Caspian Sea [MeSH]
Article ID: Vol23-44 |
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Full-Text [PDF 602 kb]
(11943 Downloads)
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Type of Study: Original Articles |
Subject:
Medical Biotecnology
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Jenaban N S, Ali Asgari E, Amini K. Cloning and Expression of Urate Oxidase Gene Isolated from Marine Streptomyces in Escherichia coli Origami Bacteria. J Gorgan Univ Med Sci 2021; 23 (3) :84-90 URL: http://goums.ac.ir/journal/article-1-3835-en.html
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