Bioinformatics Designing of ۱۰-۲۳ Deoxyribozyme against Coding Region of Beta-galactosidase Gene
عنوان مقاله: Bioinformatics Designing of ۱۰-۲۳ Deoxyribozyme against Coding Region of Beta-galactosidase Gene
شناسه ملی مقاله: JR_REMJ-5-2_006
منتشر شده در در سال 1396
شناسه ملی مقاله: JR_REMJ-5-2_006
منتشر شده در در سال 1396
مشخصات نویسندگان مقاله:
Nasrin al-Sadat Ahmadi - Cellular and Molecular Biology Division; Department of Biology; Faculty of Sciences, University of Isfahan; Isfahan; Iran
Abolghasem Esmaeili - Cellular and Molecular Biology Division; Department of Biology; Faculty of Sciences, University of Isfahan; Isfahan; Iran
Fatemeh Javadi Zarnaghi - Cellular and Molecular Biology Division; Department of Biology; Faculty of Sciences, University of Isfahan; Isfahan; Iran
خلاصه مقاله:
Nasrin al-Sadat Ahmadi - Cellular and Molecular Biology Division; Department of Biology; Faculty of Sciences, University of Isfahan; Isfahan; Iran
Abolghasem Esmaeili - Cellular and Molecular Biology Division; Department of Biology; Faculty of Sciences, University of Isfahan; Isfahan; Iran
Fatemeh Javadi Zarnaghi - Cellular and Molecular Biology Division; Department of Biology; Faculty of Sciences, University of Isfahan; Isfahan; Iran
Background: Deoxyribozymes (Dzs) can play a role as gene expression inhibitors at mRNA level. Among Dzs, the ۱۰-۲۳ deoxyribozyme has significant potentials for treatment of diseases. Designed Dz includes a catalytic core made of ۱۵ deoxyribonucleotides and two binding arms consisted of ۶-۱۲ nucleotides for site specific binding to target RNA and hydrolysis. The enzyme has characteristic features for cleavage of the RNA target between an unpaired purine (A, G) and a paired pyrimidine (C or U). In this study, ۱۰-۲۳ Dz is designed for the coding region of the α-peptide of a lacZ gene.
Material and Methods: The primary sequence of a plasmid with α-complementation ability was taken from addgene database. To confirm sequence validity, ExPASy was used to analyze related ORFs for the retrieved sequence. The ORF with identical sequence to α-peptide was selected in the reverse complement sequence. Subsequently, the secondary structure of the α-peptide was analyzed in DINAMelt web server and Mfold software. Then the intended target site was selected inside the coding region of the α-peptide. The Dzs sequence was designed for the target site with nucleotide binding arms.
Results and conclusion: The resulted Dz in this study can be used as a promising catalytic DNA inside bacterial cells for blue-white screening. Criteria such as biological stability and catalytic rate of such enzymes must be evaluated in vivo and in vitro.
کلمات کلیدی: ۱۰-۲۳ deoxyribozyme, gene expression, beta-galactosidase gene
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1881987/