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Article: Stable isotope N-phosphoryl amino acids labeling for quantitative profiling of amine-containing metabolites using liquid chromatography mass spectrometry

TitleStable isotope N-phosphoryl amino acids labeling for quantitative profiling of amine-containing metabolites using liquid chromatography mass spectrometry
Authors
KeywordsChiral separation
Mass spectrometry
Metabolites
Phosphorus reagents
Stable isotope labeling
Issue Date2017
Citation
Analytica Chimica Acta, 2017, v. 978, p. 24-34 How to Cite?
AbstractStable isotope chemical labeling liquid chromatography-mass spectrometry (LC-MS) is a powerful strategy for comprehensive metabolomics profiling, which can improve metabolites coverage and quantitative information for exploration of metabolic regulation in complex biological systems. In the current work, a novel stable isotope N-phosphoryl amino acids labeling strategy (SIPAL) has been successful developed for quantitative profiling of amine-containing metabolites in urine based on organic phosphorus chemistry. Two isotopic reagents, 16O2- and 18O2-N-diisopropyl phosphoryl L-alanine N-hydroxysuccinimide esters (16O/18O-DIPP-L-Ala-NHS), were firstly synthesized in high yields for labeling the amine-containing metabolites. The performance of SIPAL strategy was tested by analyzing standard samples including 20 L-amino acids, 10 D-amino acids and small peptides by using LC-MS. We observed highly efficient and selective labeling for SIPAL strategy within 15 min in a one-pot derivatization reaction under aqueous reaction conditions. The introduction of a neutral phosphate group at N-terminus can increase the proton affinity and overall hydrophobicity of targeted metabolites, leading to the better ionization efficiency in electrospray ionization processes and chromatographic separations of hydrophilic metabolites on reversed-phase column. Furthermore, the chiral metabolites, such as D-amino acids, could be converted to diastereomers after SIPAL and successfully separated on regular reversed-phase column. The chirality of labeled enantiomers can be determined by using different detection methods such as 31P NMR, UV, and MS, demonstrating the potential application of SIPAL strategy. In addition, absolute quantification of chiral metabolites in biological samples can be easily achieved by using SIPAL strategy. For this purpose, urine samples collected from a healthy volunteer were analyzed by using LC-ESI-Orbitrap MS. Over 300 pairs of different amine-containing metabolites have been manually identified with high relative abundance (signal-to-noise ratios greater than 10). Finally, a standard peptide could be relatively quantified by using SIPAL strategy in combination with MALDI-TOF MS, suggesting the potential application of this strategy for quantitative proteomics.
Persistent Identifierhttp://hdl.handle.net/10722/324010
ISSN
2023 Impact Factor: 5.7
2023 SCImago Journal Rankings: 0.998
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, Shanshan-
dc.contributor.authorShi, Jinwen-
dc.contributor.authorShan, Changkai-
dc.contributor.authorHuang, Chengting-
dc.contributor.authorWu, Yile-
dc.contributor.authorDing, Rong-
dc.contributor.authorXue, Yuhua-
dc.contributor.authorLiu, Wen-
dc.contributor.authorZhou, Qiang-
dc.contributor.authorZhao, Yufen-
dc.contributor.authorXu, Pengxiang-
dc.contributor.authorGao, Xiang-
dc.date.accessioned2023-01-13T03:00:52Z-
dc.date.available2023-01-13T03:00:52Z-
dc.date.issued2017-
dc.identifier.citationAnalytica Chimica Acta, 2017, v. 978, p. 24-34-
dc.identifier.issn0003-2670-
dc.identifier.urihttp://hdl.handle.net/10722/324010-
dc.description.abstractStable isotope chemical labeling liquid chromatography-mass spectrometry (LC-MS) is a powerful strategy for comprehensive metabolomics profiling, which can improve metabolites coverage and quantitative information for exploration of metabolic regulation in complex biological systems. In the current work, a novel stable isotope N-phosphoryl amino acids labeling strategy (SIPAL) has been successful developed for quantitative profiling of amine-containing metabolites in urine based on organic phosphorus chemistry. Two isotopic reagents, 16O2- and 18O2-N-diisopropyl phosphoryl L-alanine N-hydroxysuccinimide esters (16O/18O-DIPP-L-Ala-NHS), were firstly synthesized in high yields for labeling the amine-containing metabolites. The performance of SIPAL strategy was tested by analyzing standard samples including 20 L-amino acids, 10 D-amino acids and small peptides by using LC-MS. We observed highly efficient and selective labeling for SIPAL strategy within 15 min in a one-pot derivatization reaction under aqueous reaction conditions. The introduction of a neutral phosphate group at N-terminus can increase the proton affinity and overall hydrophobicity of targeted metabolites, leading to the better ionization efficiency in electrospray ionization processes and chromatographic separations of hydrophilic metabolites on reversed-phase column. Furthermore, the chiral metabolites, such as D-amino acids, could be converted to diastereomers after SIPAL and successfully separated on regular reversed-phase column. The chirality of labeled enantiomers can be determined by using different detection methods such as 31P NMR, UV, and MS, demonstrating the potential application of SIPAL strategy. In addition, absolute quantification of chiral metabolites in biological samples can be easily achieved by using SIPAL strategy. For this purpose, urine samples collected from a healthy volunteer were analyzed by using LC-ESI-Orbitrap MS. Over 300 pairs of different amine-containing metabolites have been manually identified with high relative abundance (signal-to-noise ratios greater than 10). Finally, a standard peptide could be relatively quantified by using SIPAL strategy in combination with MALDI-TOF MS, suggesting the potential application of this strategy for quantitative proteomics.-
dc.languageeng-
dc.relation.ispartofAnalytica Chimica Acta-
dc.subjectChiral separation-
dc.subjectMass spectrometry-
dc.subjectMetabolites-
dc.subjectPhosphorus reagents-
dc.subjectStable isotope labeling-
dc.titleStable isotope N-phosphoryl amino acids labeling for quantitative profiling of amine-containing metabolites using liquid chromatography mass spectrometry-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.aca.2017.04.025-
dc.identifier.pmid28595723-
dc.identifier.scopuseid_2-s2.0-85018366119-
dc.identifier.volume978-
dc.identifier.spage24-
dc.identifier.epage34-
dc.identifier.eissn1873-4324-
dc.identifier.isiWOS:000402863100003-

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