Optimization of Gene Design, PCR Assembly and Site-Directed Mutagenesis for the Synthesis of Beauveria Bassiana Protease Gene

Synthetic gene construction is one of the components of synthetic biology. It can be used for various purposes such as to optimize gene expression. In this study, we proposed six predetermined criteria for designing oligos for the synthesis of the Beauveria bassiana protease gene. These criteria wer...

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Main Authors: Muhammad Azharuddin Azali, Salmah Mohamed, Azian Harun, Shaharum Shamsuddin, Muhammad Farid Johan
Format: Article
Language:English
Published: University of Tehran 2021-03-01
Series:Journal of Sciences, Islamic Republic of Iran
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Online Access:https://jsciences.ut.ac.ir/article_79824_446ec075eb4f1e7fbb7154955fe54161.pdf
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author Muhammad Azharuddin Azali
Salmah Mohamed
Azian Harun
Shaharum Shamsuddin
Muhammad Farid Johan
author_facet Muhammad Azharuddin Azali
Salmah Mohamed
Azian Harun
Shaharum Shamsuddin
Muhammad Farid Johan
author_sort Muhammad Azharuddin Azali
collection DOAJ
description Synthetic gene construction is one of the components of synthetic biology. It can be used for various purposes such as to optimize gene expression. In this study, we proposed six predetermined criteria for designing oligos for the synthesis of the Beauveria bassiana protease gene. These criteria were set up to optimize the cost and to accommodate the oligos assembly. A total of 44 overlapping oligos were designed and synthesized 0.5 µM of oligos mixture was used in assembly PCR together with high fidelity DNA polymerase to produce 1.1 kbp fragment. The gene was visualized by agarose gel electrophoresis before subcloned into pCR™2.1-TOPO. The sequence of the gene was verified by DNA sequencing. Site-directed mutagenesis was performed to repair errors resulted from the gene synthesis. A sharp and distinguished band of the expected size of the protease gene was observed in agarose gel electrophoresis. Errors in the sequence which was detected by DNA sequencing were successfully repaired using our simplified site-directed mutagenesis protocol. The result indicated long DNA sequences (>1 kbp) can be synthesized with less error by using our method. Additionally, this method was easy to perform because it would require minimum optimization to synthesize other genes by following our guidelines.
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publishDate 2021-03-01
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spelling doaj-art-710082d87fcb4090b18aafa0a2dc8d9e2025-08-20T03:13:37ZengUniversity of TehranJournal of Sciences, Islamic Republic of Iran1016-11042345-69142021-03-0132151410.22059/jsciences.2021.306311.100754779824Optimization of Gene Design, PCR Assembly and Site-Directed Mutagenesis for the Synthesis of Beauveria Bassiana Protease GeneMuhammad Azharuddin Azali0Salmah Mohamed1Azian Harun2Shaharum Shamsuddin3Muhammad Farid Johan41 Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia. 2 School of Agriculture Science and Biotechnology, Faculty of Bioresources and Food Industry, Universiti Sultan Zainal Abidin, 22200 Besut, Terengganu, Malaysia2 School of Agriculture Science and Biotechnology, Faculty of Bioresources and Food Industry, Universiti Sultan Zainal Abidin, 22200 Besut, Terengganu, Malaysia.3 Department of Microbiology & Parasitology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.4 School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia. 5 Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia1Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, MalaysiaSynthetic gene construction is one of the components of synthetic biology. It can be used for various purposes such as to optimize gene expression. In this study, we proposed six predetermined criteria for designing oligos for the synthesis of the Beauveria bassiana protease gene. These criteria were set up to optimize the cost and to accommodate the oligos assembly. A total of 44 overlapping oligos were designed and synthesized 0.5 µM of oligos mixture was used in assembly PCR together with high fidelity DNA polymerase to produce 1.1 kbp fragment. The gene was visualized by agarose gel electrophoresis before subcloned into pCR™2.1-TOPO. The sequence of the gene was verified by DNA sequencing. Site-directed mutagenesis was performed to repair errors resulted from the gene synthesis. A sharp and distinguished band of the expected size of the protease gene was observed in agarose gel electrophoresis. Errors in the sequence which was detected by DNA sequencing were successfully repaired using our simplified site-directed mutagenesis protocol. The result indicated long DNA sequences (>1 kbp) can be synthesized with less error by using our method. Additionally, this method was easy to perform because it would require minimum optimization to synthesize other genes by following our guidelines.https://jsciences.ut.ac.ir/article_79824_446ec075eb4f1e7fbb7154955fe54161.pdfgene synthesispcr assemblyprotease genesite-directed mutagenesis
spellingShingle Muhammad Azharuddin Azali
Salmah Mohamed
Azian Harun
Shaharum Shamsuddin
Muhammad Farid Johan
Optimization of Gene Design, PCR Assembly and Site-Directed Mutagenesis for the Synthesis of Beauveria Bassiana Protease Gene
Journal of Sciences, Islamic Republic of Iran
gene synthesis
pcr assembly
protease gene
site-directed mutagenesis
title Optimization of Gene Design, PCR Assembly and Site-Directed Mutagenesis for the Synthesis of Beauveria Bassiana Protease Gene
title_full Optimization of Gene Design, PCR Assembly and Site-Directed Mutagenesis for the Synthesis of Beauveria Bassiana Protease Gene
title_fullStr Optimization of Gene Design, PCR Assembly and Site-Directed Mutagenesis for the Synthesis of Beauveria Bassiana Protease Gene
title_full_unstemmed Optimization of Gene Design, PCR Assembly and Site-Directed Mutagenesis for the Synthesis of Beauveria Bassiana Protease Gene
title_short Optimization of Gene Design, PCR Assembly and Site-Directed Mutagenesis for the Synthesis of Beauveria Bassiana Protease Gene
title_sort optimization of gene design pcr assembly and site directed mutagenesis for the synthesis of beauveria bassiana protease gene
topic gene synthesis
pcr assembly
protease gene
site-directed mutagenesis
url https://jsciences.ut.ac.ir/article_79824_446ec075eb4f1e7fbb7154955fe54161.pdf
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