alexa Mass Spectrometry Characterization of a Novel Insulin Mimetic Peptide s597
ISSN : 2153-2435

Pharmaceutica Analytica Acta
Open Access

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Short Communication

Mass Spectrometry Characterization of a Novel Insulin Mimetic Peptide s597

Natalia Mesonzhnik1, Grigory Krotov2 and Svetlana Appolonova1*

1Institute of Pharmacy and Translational Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia

2NRC Institute of Immunology FMBA of Russia, 115478, Moscow, Russia

*Corresponding Author:
Svetlana Appolonova
Institute of Pharmacy and Translational Medicine
Sechenov First Moscow State Medical University
Nakhimovsky Prospect 45, Moscow, Russian
Tel: +79032796571
E-mail: [email protected]

Received date: March 29, 2017; Accepted date: May 22, 2017; Published date: June 07, 2017

Citation: Mesonzhnik N, Krotov G, Appolonova G (2017) Mass Spectrometry Characterization of a Novel Insulin Mimetic Peptide s597. Pharm Anal Acta 8:549. doi: 10.4172/2153-2435.1000549

Copyright: © 2017 Mesonzhnik N, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Novel peptide-based drugs have recently gained high popularity, especially among athletes seeking ways to enhance their performance. Although the World Anti-Doping Agency (WADA) has banned the use of any nonapproved for human therapeutic use pharmacological substances in Sports, a huge variety of such peptides with potential performance-enhancing properties are available for sale in the black market and in illegal online websites. The difficulty of determination of these molecules in biological fluids depending on their low concentrations and their similarity to endogenous compounds has boosted their use not only among athletes, but also in the amateurs’ world.

The goal of this study was to perform the mass spectrometry characterization of a novel s597 peptide drug purchased via an online store. The study was carried out using nanoscale liquid chromatography/quadrupole Orbitrap mass spectrometry with accurate mass determination and sequence analysis for both intact drug and after its trypsinolysis. The purchased drug was found to be a peptide with 31 amino acid residues, intra-chain disulfide bond and modified by C-terminal amide and N-terminal acetyl groups. The proposed sequence was consistent with s597 peptide, designed to be used as insulin receptor ligand mimetic.

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