Optimization of cultivation conditions to enhance the expression of recombinant VDAC2 from gallus gallus

VDAC2 protein identified to be over expressed in over-stunned chicken is a potential biomarker in differentiating stunned chicken and the voltage applied during the process. The VDAC2 gene was amplified by proofread DNA polymerase, then purified and inserted into pENTR-TEV-D-TOPO entry vector and...

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Main Authors: Ahmad Hassan, Nurhidayah, Amid, Azura, Mohd. Salleh, Hamzah
Format: Article
Language:English
Published: Journal of Pure and Applied Microbiology 2014
Subjects:
Online Access:http://irep.iium.edu.my/38507/
http://irep.iium.edu.my/38507/1/May_Dayah_JPAM.pdf
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author Ahmad Hassan, Nurhidayah
Amid, Azura
Mohd. Salleh, Hamzah
author_facet Ahmad Hassan, Nurhidayah
Amid, Azura
Mohd. Salleh, Hamzah
author_sort Ahmad Hassan, Nurhidayah
building IIUM Repository
collection Online Access
description VDAC2 protein identified to be over expressed in over-stunned chicken is a potential biomarker in differentiating stunned chicken and the voltage applied during the process. The VDAC2 gene was amplified by proofread DNA polymerase, then purified and inserted into pENTR-TEV-D-TOPO entry vector and transformed into One Shot TOP 10 Chemically Competent E. coli. The entry clone then was sub cloned into pDEST17 expression vector using LR recombinasein E. coli DH5á as the host. The vector construct was transformed into E. coli BL21-AI for protein expression. Recombinant VDAC2 protein was purified by affinity chromatography using Ni-NTA spin-column. Western blot using polyclonal anti-N terminal human VDAC2 and anti-His tag, followed by secondary antibody AP goat anti-rabbit revealed a 34 kDa protein, confirming the expression of recombinant VDAC2. Post-induction temperature, concentration of L-arabinose and postinduction time were selected for optimization studies under Response Surface Methodology (RSM). The optimum predicted cultivation conditions for the maximum expression of recombinant VDAC2 was found to be at 29oC post-induction temperature, 6.8 hour post-induction time and 0.5% (w/v) L-arabinose with a predicted expression of recombinant VDAC2 intensity of 0.459. The experimental expression of recombinant VDAC2 intensity obtained was 0.496, which was very close to the predicted value. The expression of recombinant VDAC2 improved by almost 6-fold after the optimization process. Therefore, RSM is a suitable method for optimizing recombinant VDAC2 expression in E. coli to provide a better understanding of its characteristics and propertiesto become abiomarker in detecting over-stunned chicken.
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spelling iium-385072021-07-23T01:51:48Z http://irep.iium.edu.my/38507/ Optimization of cultivation conditions to enhance the expression of recombinant VDAC2 from gallus gallus Ahmad Hassan, Nurhidayah Amid, Azura Mohd. Salleh, Hamzah TP248.13 Biotechnology VDAC2 protein identified to be over expressed in over-stunned chicken is a potential biomarker in differentiating stunned chicken and the voltage applied during the process. The VDAC2 gene was amplified by proofread DNA polymerase, then purified and inserted into pENTR-TEV-D-TOPO entry vector and transformed into One Shot TOP 10 Chemically Competent E. coli. The entry clone then was sub cloned into pDEST17 expression vector using LR recombinasein E. coli DH5á as the host. The vector construct was transformed into E. coli BL21-AI for protein expression. Recombinant VDAC2 protein was purified by affinity chromatography using Ni-NTA spin-column. Western blot using polyclonal anti-N terminal human VDAC2 and anti-His tag, followed by secondary antibody AP goat anti-rabbit revealed a 34 kDa protein, confirming the expression of recombinant VDAC2. Post-induction temperature, concentration of L-arabinose and postinduction time were selected for optimization studies under Response Surface Methodology (RSM). The optimum predicted cultivation conditions for the maximum expression of recombinant VDAC2 was found to be at 29oC post-induction temperature, 6.8 hour post-induction time and 0.5% (w/v) L-arabinose with a predicted expression of recombinant VDAC2 intensity of 0.459. The experimental expression of recombinant VDAC2 intensity obtained was 0.496, which was very close to the predicted value. The expression of recombinant VDAC2 improved by almost 6-fold after the optimization process. Therefore, RSM is a suitable method for optimizing recombinant VDAC2 expression in E. coli to provide a better understanding of its characteristics and propertiesto become abiomarker in detecting over-stunned chicken. Journal of Pure and Applied Microbiology 2014-05 Article PeerReviewed application/pdf en http://irep.iium.edu.my/38507/1/May_Dayah_JPAM.pdf Ahmad Hassan, Nurhidayah and Amid, Azura and Mohd. Salleh, Hamzah (2014) Optimization of cultivation conditions to enhance the expression of recombinant VDAC2 from gallus gallus. Journal of Pure and Applied Microbiology, 8 (s.ed 1). pp. 751-759. ISSN 0973-7510 http://www.microbiologyjournal.org/
spellingShingle TP248.13 Biotechnology
Ahmad Hassan, Nurhidayah
Amid, Azura
Mohd. Salleh, Hamzah
Optimization of cultivation conditions to enhance the expression of recombinant VDAC2 from gallus gallus
title Optimization of cultivation conditions to enhance the expression of recombinant VDAC2 from gallus gallus
title_full Optimization of cultivation conditions to enhance the expression of recombinant VDAC2 from gallus gallus
title_fullStr Optimization of cultivation conditions to enhance the expression of recombinant VDAC2 from gallus gallus
title_full_unstemmed Optimization of cultivation conditions to enhance the expression of recombinant VDAC2 from gallus gallus
title_short Optimization of cultivation conditions to enhance the expression of recombinant VDAC2 from gallus gallus
title_sort optimization of cultivation conditions to enhance the expression of recombinant vdac2 from gallus gallus
topic TP248.13 Biotechnology
url http://irep.iium.edu.my/38507/
http://irep.iium.edu.my/38507/
http://irep.iium.edu.my/38507/1/May_Dayah_JPAM.pdf