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Journal Publication
Title of Article The recombinant expression and antimicrobial activity determination of Cecropin-like part of Heteroscorpine-1 from Heterometrus laoticus 
Date of Acceptance 4 November 2022 
Journal
     Title of Journal BIODIVERSITAS 
     Standard SCOPUS 
     Institute of Journal Smujo International for The Society for Indonesian Biodiversity and Sebelas Maret University Surakarta 
     ISBN/ISSN 1412-033X 
     Volume 23 
     Issue 11 
     Month November
     Year of Publication 2022 
     Page  
     Abstract Antimicrobial peptides are promising novel antibiotics that hold great potential in combating bacteria, fungi, virus, and parasites. Recent interest has increased in their potential as new pharmacological agents. Large quantitiy of antimicrobial peptides are required in order to fulfil the demand of the peptides for scientific research and clinical trials. Gene expression systems for antimicrobial peptides have been developed, which may be utilized efficiently for various antimicrobial peptides-related studies and applications. However, many expression systems that have been developed require many steps that impact to the expression cost. This study established the fast and easy expression system of recombinant Cecropin-like part of Heteroscorpine-1 (CeHS-1) and determined their activity. The gene was chemically synthesized, ligated to the expression vector pET32a, transformed to Escherichia coli BL21 (DE3) pLysS competent cell, and induced by 0.2 mM isopropyl β-D-1-thiogalactopyranoside. The induction time optimization determined that the 3 hrs induction resulted the highest peptides yield. The prolonged induction would decrease the peptides yield, due to the toxicity of the peptides towards the host cells. The peptides purification was facilitated by His tag sequence through purifying affinity chromatographic column of Ni-NTA. The induction was able to express the expected peptides in the soluble fraction. The antimicrobial activity assay showed that the recombinant peptides could inhibit the growth of many bacterial strains. However, their activity was lower compared to the synthetic peptides. This finding demonstrated that the developed expression system in this study might facilitate the easy and feasible expression system for CeHS-1. Additionally, the study revealed that the antimicrobial activity of the expressed peptides could be preserved. 
     Keyword Antimicrobial, CeHS-1, Heteroscorpine-1, peptides, recombinant expression 
Author
617150008-2 Mrs. RIMA ERVIANA [Main Author]
Pharmaceutical Sciences Doctoral Degree

Reviewing Status มีผู้ประเมินอิสระ 
Status ได้รับการตอบรับให้ตีพิมพ์ 
Level of Publication นานาชาติ 
citation true 
Part of thesis true 
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