Characterizing the D-Amino Acid Position in Peptide Epimers by Using Higher-Energy Collisional Dissociation Tandem Mass Spectrometry: A Case Study of Liraglutide

D-amino acid-containing peptides (DAACPs) occur in biological and artificial environments. Since the importance of DAACPs has been recognized, various mass spectrometry-based analytical approaches have been developed. However, the capability of higher-energy collisional dissociation (HCD) fragmentat...

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Main Authors: Yuan-Chih Chen, Hsin-Yi Wu, Lung-Cheng Lin, Chih-Wei Chang, Pao-Chi Liao
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/25/3/1379
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author Yuan-Chih Chen
Hsin-Yi Wu
Lung-Cheng Lin
Chih-Wei Chang
Pao-Chi Liao
author_facet Yuan-Chih Chen
Hsin-Yi Wu
Lung-Cheng Lin
Chih-Wei Chang
Pao-Chi Liao
author_sort Yuan-Chih Chen
collection DOAJ
description D-amino acid-containing peptides (DAACPs) occur in biological and artificial environments. Since the importance of DAACPs has been recognized, various mass spectrometry-based analytical approaches have been developed. However, the capability of higher-energy collisional dissociation (HCD) fragmentation to characterize DAACP sites has not been evaluated. In this study, we compared the normalized spectra intensity under different conditions of HCD and used liraglutide along with its DAACPs as examples. Our results indicated that the difference in the intensity of y ions between DAACPs and all-L liraglutide could not only distinguish them but also localize the sites of D-amino acids in the DAACPs. Our data demonstrate the potential of using HCD for the site characterization of DAACPs, which may have great impact in biological studies and peptide drug development.
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spelling doaj.art-0c446af51719465990e80fec6bbbd37b2024-02-09T15:13:02ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672024-01-01253137910.3390/ijms25031379Characterizing the D-Amino Acid Position in Peptide Epimers by Using Higher-Energy Collisional Dissociation Tandem Mass Spectrometry: A Case Study of LiraglutideYuan-Chih Chen0Hsin-Yi Wu1Lung-Cheng Lin2Chih-Wei Chang3Pao-Chi Liao4Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 704, TaiwanInstrumentation Center, National Taiwan University, Taipei 106, TaiwanScinoPharm Taiwan, Ltd., Tainan 741, TaiwanDepartment of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 704, TaiwanDepartment of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 704, TaiwanD-amino acid-containing peptides (DAACPs) occur in biological and artificial environments. Since the importance of DAACPs has been recognized, various mass spectrometry-based analytical approaches have been developed. However, the capability of higher-energy collisional dissociation (HCD) fragmentation to characterize DAACP sites has not been evaluated. In this study, we compared the normalized spectra intensity under different conditions of HCD and used liraglutide along with its DAACPs as examples. Our results indicated that the difference in the intensity of y ions between DAACPs and all-L liraglutide could not only distinguish them but also localize the sites of D-amino acids in the DAACPs. Our data demonstrate the potential of using HCD for the site characterization of DAACPs, which may have great impact in biological studies and peptide drug development.https://www.mdpi.com/1422-0067/25/3/1379chiralityhigh-resolution mass spectrometryD-amino acid-containing peptidehigher-energy collisional dissociation
spellingShingle Yuan-Chih Chen
Hsin-Yi Wu
Lung-Cheng Lin
Chih-Wei Chang
Pao-Chi Liao
Characterizing the D-Amino Acid Position in Peptide Epimers by Using Higher-Energy Collisional Dissociation Tandem Mass Spectrometry: A Case Study of Liraglutide
International Journal of Molecular Sciences
chirality
high-resolution mass spectrometry
D-amino acid-containing peptide
higher-energy collisional dissociation
title Characterizing the D-Amino Acid Position in Peptide Epimers by Using Higher-Energy Collisional Dissociation Tandem Mass Spectrometry: A Case Study of Liraglutide
title_full Characterizing the D-Amino Acid Position in Peptide Epimers by Using Higher-Energy Collisional Dissociation Tandem Mass Spectrometry: A Case Study of Liraglutide
title_fullStr Characterizing the D-Amino Acid Position in Peptide Epimers by Using Higher-Energy Collisional Dissociation Tandem Mass Spectrometry: A Case Study of Liraglutide
title_full_unstemmed Characterizing the D-Amino Acid Position in Peptide Epimers by Using Higher-Energy Collisional Dissociation Tandem Mass Spectrometry: A Case Study of Liraglutide
title_short Characterizing the D-Amino Acid Position in Peptide Epimers by Using Higher-Energy Collisional Dissociation Tandem Mass Spectrometry: A Case Study of Liraglutide
title_sort characterizing the d amino acid position in peptide epimers by using higher energy collisional dissociation tandem mass spectrometry a case study of liraglutide
topic chirality
high-resolution mass spectrometry
D-amino acid-containing peptide
higher-energy collisional dissociation
url https://www.mdpi.com/1422-0067/25/3/1379
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