%0 Journal Article
%A Verma, Himanshu
%A Mihooliya, Kanti N.
%A Nandal, Jitender
%A Sahoo, Debendra K.
%D 2024
%F open:3107
%I TAYLOR AND FRANCIS
%J PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY
%K Antimicrobial peptide; MIC; Vibrio proteolyticus; amino acid analysis; response surface methodology.
%N 2
%P 193-206
%T Studies on a new antimicrobial peptide from Vibrio proteolyticus MT110
%U http://crdd.osdd.net/open/3107/
%V 54
%X The marine environment is known for its vast diversity of the microbial population; however, less explored for bioactive compounds. In this study, an AMP produced by a new marine isolate, Vibrio proteolyticus MT110, showed broad-spectrum antimicrobial activity against Gram-positive and Gram-negative bacteria. The AMP was purified to homogeneity using ethyl acetate extraction followed by RP-HPLC, and LC-MS analysis showed its molecular weight as 980 Da. The MIC of AMP (peptide-MT110) was obtained in the 7.81-31.25 µg/mL range against different indicator strains. Peptide-MT110 showed stability of its antimicrobial activity at 15-121 °C and pH 4-10 and in the presence of various hydrolytic enzymes. The peaks at 1536 cm-1 and 1712 cm-1 wavenumbers in FTIR spectra confirmed the peptidic nature of AMP, and its amino acid analysis confirmed the presence of tyrosine and isoleucine. The antibacterial activity of peptide-MT110 is confirmed by PI assay and TEM. The optimization of peptide-MT110 production using statistical methods resulted in a 2.64-fold higher production. The physicochemical properties and stability in wide pH and temperature ranges showed the potential of peptide-MT110 for its development as a drug candidate. This is believed to be the first report on an AMP from Vibrio proteolyticus.
%Z The copyright of this article belongs to TAYLOR AND FRANCIS