Successful production of recombinant buckwheat cysteine-rich aspartic protease in Escherichia coli

Herein, the expression of recombinant cysteine-rich atypical buckwheat (Fagopyrum esculentum) aspartic protease (FeAPL1) in five Escherichia coli strains differing in their expression capabilities is presented. It was shown that the expression success depended highly on the choice of FeAPL1 fusion p...

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Main Authors: Milisavljević Mira D., Papić Dražen R., Timotijević Gordana S., Maksimović Vesna R.
Format: Article
Language:English
Published: Serbian Chemical Society 2009-01-01
Series:Journal of the Serbian Chemical Society
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0352-5139/2009/0352-51390906607M.pdf
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author Milisavljević Mira D.
Papić Dražen R.
Timotijević Gordana S.
Maksimović Vesna R.
author_facet Milisavljević Mira D.
Papić Dražen R.
Timotijević Gordana S.
Maksimović Vesna R.
author_sort Milisavljević Mira D.
collection DOAJ
description Herein, the expression of recombinant cysteine-rich atypical buckwheat (Fagopyrum esculentum) aspartic protease (FeAPL1) in five Escherichia coli strains differing in their expression capabilities is presented. It was shown that the expression success depended highly on the choice of FeAPL1 fusion partner. His6-FeAPL1 was produced in large quantities as an insoluble protein localized in inclusion bodies. On the other hand, MBP-FeAPL1 was localized in both the cytoplasm and inclusion bodies in BL21 and Rosetta-gami strains. Only purified soluble MBP-FeAPL1 from Rosetta-gami cells showed proteolytic activity at pH 3.0 with BSA as the substrate. The results also indicated that FeAPL1 contained a PRO segment that had to be removed for the enzyme activity to appear. The activity of FeAPL1 produced in the Rosetta-gami strain, which enables disulfide bond formation, indicated the importance of the twelve cysteine residues for correct folding and functionality.
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spelling doaj.art-4908068b01b84df1991419b60326f5552022-12-21T23:45:01ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212009-01-0174660761810.2298/JSC0906607M0352-51390906607MSuccessful production of recombinant buckwheat cysteine-rich aspartic protease in Escherichia coliMilisavljević Mira D.0Papić Dražen R.1Timotijević Gordana S.2Maksimović Vesna R.3Institut za molekularnu genetiku i genetičko inženjerstvo, BeogradInstitut za molekularnu genetiku i genetičko inženjerstvo, BeogradInstitut za molekularnu genetiku i genetičko inženjerstvo, BeogradInstitut za molekularnu genetiku i genetičko inženjerstvo, BeogradHerein, the expression of recombinant cysteine-rich atypical buckwheat (Fagopyrum esculentum) aspartic protease (FeAPL1) in five Escherichia coli strains differing in their expression capabilities is presented. It was shown that the expression success depended highly on the choice of FeAPL1 fusion partner. His6-FeAPL1 was produced in large quantities as an insoluble protein localized in inclusion bodies. On the other hand, MBP-FeAPL1 was localized in both the cytoplasm and inclusion bodies in BL21 and Rosetta-gami strains. Only purified soluble MBP-FeAPL1 from Rosetta-gami cells showed proteolytic activity at pH 3.0 with BSA as the substrate. The results also indicated that FeAPL1 contained a PRO segment that had to be removed for the enzyme activity to appear. The activity of FeAPL1 produced in the Rosetta-gami strain, which enables disulfide bond formation, indicated the importance of the twelve cysteine residues for correct folding and functionality.http://www.doiserbia.nb.rs/img/doi/0352-5139/2009/0352-51390906607M.pdfaspartic proteasehis taginclusion bodiesmbprecombinant protein
spellingShingle Milisavljević Mira D.
Papić Dražen R.
Timotijević Gordana S.
Maksimović Vesna R.
Successful production of recombinant buckwheat cysteine-rich aspartic protease in Escherichia coli
Journal of the Serbian Chemical Society
aspartic protease
his tag
inclusion bodies
mbp
recombinant protein
title Successful production of recombinant buckwheat cysteine-rich aspartic protease in Escherichia coli
title_full Successful production of recombinant buckwheat cysteine-rich aspartic protease in Escherichia coli
title_fullStr Successful production of recombinant buckwheat cysteine-rich aspartic protease in Escherichia coli
title_full_unstemmed Successful production of recombinant buckwheat cysteine-rich aspartic protease in Escherichia coli
title_short Successful production of recombinant buckwheat cysteine-rich aspartic protease in Escherichia coli
title_sort successful production of recombinant buckwheat cysteine rich aspartic protease in escherichia coli
topic aspartic protease
his tag
inclusion bodies
mbp
recombinant protein
url http://www.doiserbia.nb.rs/img/doi/0352-5139/2009/0352-51390906607M.pdf
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