Engineered synthetic cationic antimicrobial peptides are the potential alternative drugs to existing antibiotics. In the present study, a novel attempt for the intracellular production of engineered synthetic cationic antimicrobial peptide (escAMP) using Pichia pastoris was studied. The engineered synthetic cationic antimicrobial peptide gene was synthesized using overlapping PCR. An entirokinase and hydroxylamine hydrochloride cleavage sites are incorporated at N-and C-terminal end of escAMP respectively for easy purification. Later the gene was inserted into the MCS region of pPICZ-B vector. The synthetic peptide under the AOX1 promoter was integrated into the Pichia pastoris GS115 genome and the recombinant clones were screened by using antibiotic resistance. Expression profiles of recombinant peptide were done using glycerol and methanol based synthetic medium and analysed on 18 % Tricine-SDS-PAGE. Purification of the expressed peptide was done after cell disruption (10 cycles on time, 10 cycles off time and 10 min of total time) using 6X histidine tag followed by enzymatic cleavage. In this study, 67 gm of dry cell weight/L and 580 mg/L of purified escAMP was produced. The purified peptide is analysed for its anti microbial activity against different Gram positive and Gram negative microbes. For the first time smallest engineered synthetic cationic peptide was designed, cloned and expressed from methanol inducible Pichia pastoris GS115 and production ranges are encouraging.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.