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Article: Characterization of the product ions from the collision-induced dissociation of argentinated peptides

TitleCharacterization of the product ions from the collision-induced dissociation of argentinated peptides
Authors
Issue Date2001
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/jasms
Citation
Journal Of The American Society For Mass Spectrometry, 2001, v. 12 n. 2, p. 163-175 How to Cite?
AbstractTandem mass spectrometry performed on a pool of 18 oligopeptides shows that the product ion spectra of argentinated peptides, the [b n + OH + Ag] + ions and the [y n - H + Ag] + ions bearing identical sequences are virtually identical. These observations suggest strongly that these ions have identical structures in the gas phase. The structures of argentinated glycine, glycylglycine, and glycylglycylglycine were calculated using density functional theory (DFT) at the B3LYP/DZVP level of theory; they were independently confirmed using HF/LANL2DZ. For argentinated glycylglycylglycine, the most stable structure is one in which Ag + is tetracoordinate and attached to the amino nitrogen and the three carbonyl oxygen atoms. Mechanisms are proposed for the fragmentation of this structure to the [b 2 + OH + Ag] + and the [y 2 - H + Ag] + ions that are consistent with all experimental observations and known calculated structures and energetics. The structures of the [b 2 - H + Ag] + and the [a 2 - H + Ag] + ions of glycylglycylglycine were also calculated using DFT. These results confirm earlier suggestions that the [b 2 - H + Ag] + ion is an argentinated oxazolone and the [a 2 - H + Ag] + an argentinated immonium ion. Copyright © 2001 American Society for Mass Spectrometry.
Persistent Identifierhttp://hdl.handle.net/10722/167689
ISSN
2015 Impact Factor: 3.031
2015 SCImago Journal Rankings: 1.322
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChu, IKen_US
dc.contributor.authorShoeib, Ten_US
dc.contributor.authorGuo, Xen_US
dc.contributor.authorRodriquez, CFen_US
dc.contributor.authorHopkinson, ACen_US
dc.contributor.authorSiu, KWMen_US
dc.contributor.authorLau, TCen_US
dc.date.accessioned2012-10-08T03:10:04Z-
dc.date.available2012-10-08T03:10:04Z-
dc.date.issued2001en_US
dc.identifier.citationJournal Of The American Society For Mass Spectrometry, 2001, v. 12 n. 2, p. 163-175en_US
dc.identifier.issn1044-0305en_US
dc.identifier.urihttp://hdl.handle.net/10722/167689-
dc.description.abstractTandem mass spectrometry performed on a pool of 18 oligopeptides shows that the product ion spectra of argentinated peptides, the [b n + OH + Ag] + ions and the [y n - H + Ag] + ions bearing identical sequences are virtually identical. These observations suggest strongly that these ions have identical structures in the gas phase. The structures of argentinated glycine, glycylglycine, and glycylglycylglycine were calculated using density functional theory (DFT) at the B3LYP/DZVP level of theory; they were independently confirmed using HF/LANL2DZ. For argentinated glycylglycylglycine, the most stable structure is one in which Ag + is tetracoordinate and attached to the amino nitrogen and the three carbonyl oxygen atoms. Mechanisms are proposed for the fragmentation of this structure to the [b 2 + OH + Ag] + and the [y 2 - H + Ag] + ions that are consistent with all experimental observations and known calculated structures and energetics. The structures of the [b 2 - H + Ag] + and the [a 2 - H + Ag] + ions of glycylglycylglycine were also calculated using DFT. These results confirm earlier suggestions that the [b 2 - H + Ag] + ion is an argentinated oxazolone and the [a 2 - H + Ag] + an argentinated immonium ion. Copyright © 2001 American Society for Mass Spectrometry.en_US
dc.languageengen_US
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/jasmsen_US
dc.relation.ispartofJournal of the American Society for Mass Spectrometryen_US
dc.subject.meshMass Spectrometryen_US
dc.subject.meshPeptides - Chemistryen_US
dc.subject.meshSilver - Chemistryen_US
dc.titleCharacterization of the product ions from the collision-induced dissociation of argentinated peptidesen_US
dc.typeArticleen_US
dc.identifier.emailChu, IK:ivankchu@hku.hken_US
dc.identifier.authorityChu, IK=rp00683en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S1044-0305(00)00216-6en_US
dc.identifier.pmid11212001-
dc.identifier.scopuseid_2-s2.0-0035564458en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035564458&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume12en_US
dc.identifier.issue2en_US
dc.identifier.spage163en_US
dc.identifier.epage175en_US
dc.identifier.isiWOS:000166818700004-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChu, IK=7103327484en_US
dc.identifier.scopusauthoridShoeib, T=6603516521en_US
dc.identifier.scopusauthoridGuo, X=36725887400en_US
dc.identifier.scopusauthoridRodriquez, CF=7004085075en_US
dc.identifier.scopusauthoridHopkinson, AC=15067169300en_US
dc.identifier.scopusauthoridSiu, KWM=35312218500en_US
dc.identifier.scopusauthoridLau, TC=7102222310en_US

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