Identification and characterization of ferredoxin NADP+ reductase from Bacillus sp.

The aim of this experiment was to identify and characterize the enzyme ferredoxin NADP+ reductase from Bacillus sp. The gene was cloned and expressed in Escherichia coli system by using pEt102 TOPO vector as a host. The recombinant E. coli was cultured in Luria Bertani broth, and it was being induce...

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Main Author: Othman, Sarah Syamimi
Format: Project Paper Report
Language:English
Published: 2015
Online Access:http://psasir.upm.edu.my/id/eprint/85087/
http://psasir.upm.edu.my/id/eprint/85087/1/FBSB%202015%2075%20-%20IR.pdf
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author Othman, Sarah Syamimi
author_facet Othman, Sarah Syamimi
author_sort Othman, Sarah Syamimi
building UPM Institutional Repository
collection Online Access
description The aim of this experiment was to identify and characterize the enzyme ferredoxin NADP+ reductase from Bacillus sp. The gene was cloned and expressed in Escherichia coli system by using pEt102 TOPO vector as a host. The recombinant E. coli was cultured in Luria Bertani broth, and it was being induced with isopropyl-β-thioga-lactopyranoside (IPTG). Next, the expression culture was spun down by high speed centrifugation. Pellet was collected and resuspended with binding buffer and then sonicated. Centrifugation was repeated until the supernatant was collected and loaded on nickel-Sepharose chromatography. The purified ferredoxin NADP+ reductase was a protein with molecular mass of approximately 54kDa based on sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). NADPH was a good electron donor meanwhile the electron acceptor was a 2,6-Dichlorophenolindophenol (DCPIP) in a diapharose assay. Furthermore, the maximum activity for this enzyme was observed at 25℃ and at pH 7. It had been proven that this enzyme could withstand for 120 minutes at 25℃ and at pH10. Results from experiment suggested that ferredoxin NADP+ reductase can be grouped as an oxidoreductase enzyme which had a capability to facilitate the reaction between NADP+/ NADPH with ferredoxin.
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institution Universiti Putra Malaysia
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spelling upm-850872021-09-22T12:21:57Z http://psasir.upm.edu.my/id/eprint/85087/ Identification and characterization of ferredoxin NADP+ reductase from Bacillus sp. Othman, Sarah Syamimi The aim of this experiment was to identify and characterize the enzyme ferredoxin NADP+ reductase from Bacillus sp. The gene was cloned and expressed in Escherichia coli system by using pEt102 TOPO vector as a host. The recombinant E. coli was cultured in Luria Bertani broth, and it was being induced with isopropyl-β-thioga-lactopyranoside (IPTG). Next, the expression culture was spun down by high speed centrifugation. Pellet was collected and resuspended with binding buffer and then sonicated. Centrifugation was repeated until the supernatant was collected and loaded on nickel-Sepharose chromatography. The purified ferredoxin NADP+ reductase was a protein with molecular mass of approximately 54kDa based on sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). NADPH was a good electron donor meanwhile the electron acceptor was a 2,6-Dichlorophenolindophenol (DCPIP) in a diapharose assay. Furthermore, the maximum activity for this enzyme was observed at 25℃ and at pH 7. It had been proven that this enzyme could withstand for 120 minutes at 25℃ and at pH10. Results from experiment suggested that ferredoxin NADP+ reductase can be grouped as an oxidoreductase enzyme which had a capability to facilitate the reaction between NADP+/ NADPH with ferredoxin. 2015 Project Paper Report NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/85087/1/FBSB%202015%2075%20-%20IR.pdf Othman, Sarah Syamimi (2015) Identification and characterization of ferredoxin NADP+ reductase from Bacillus sp. [Project Paper Report]
spellingShingle Othman, Sarah Syamimi
Identification and characterization of ferredoxin NADP+ reductase from Bacillus sp.
title Identification and characterization of ferredoxin NADP+ reductase from Bacillus sp.
title_full Identification and characterization of ferredoxin NADP+ reductase from Bacillus sp.
title_fullStr Identification and characterization of ferredoxin NADP+ reductase from Bacillus sp.
title_full_unstemmed Identification and characterization of ferredoxin NADP+ reductase from Bacillus sp.
title_short Identification and characterization of ferredoxin NADP+ reductase from Bacillus sp.
title_sort identification and characterization of ferredoxin nadp+ reductase from bacillus sp.
url http://psasir.upm.edu.my/id/eprint/85087/
http://psasir.upm.edu.my/id/eprint/85087/1/FBSB%202015%2075%20-%20IR.pdf