Arafa AS, Ragab AE, Ibrahim ARS, Abdel-Mageed WS, Nasr ME. Cloning and Overexpression of Strictosidine β-D-Glucosidase Gene Short Sequence from
Catharanthus roseus in
Escherichia coli.
Adv Pharm Bull 2019;
9:655-661. [PMID:
31857971 PMCID:
PMC6912177 DOI:
10.15171/apb.2019.076]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 06/07/2019] [Accepted: 06/15/2019] [Indexed: 11/18/2022] Open
Abstract
Purpose: Strictosidine-β-D-glucosidase (SGD) is considered as a key enzyme in the production of bisindole alkaloids in Catharanthus roseus. The present study illustrated the production of a short sequence of this enzyme in Escherichia coli without codon optimization.
Methods: Strictosidine-β-D-glucosidase (sgd) gene short sequence (1434 bp), which lacks the conserved sequence KGFFVWS and the localization peptide sequence at the C-terminal, was amplified from cDNA of C. roseus leaves, cloned and expressed in Escherichia coli. The activity of the produced protein in cell free lysate was tested using total alkaloid extract of C. roseus leaves.
Results: HPLC and LC-MS analysis of the assay mixture revealed the disappearance of the strictosidine peak.
Conclusion: SGD short sequence can be produced in Escherichia coli in active form without codon optimization.
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