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Article: Charge-remote fragmentation of odd-electron peptide ions

TitleCharge-remote fragmentation of odd-electron peptide ions
Authors
Issue Date2007
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/ac
Citation
Analytical Chemistry, 2007, v. 79 n. 17, p. 6607-6614 How to Cite?
AbstractComparison between the gas-phase fragmentation of odd-electron M +., [M + H]2+., and [M - 2H]-. ions of model peptides suggests that charge-remote radical-driven fragmentation pathways play an important role in the dissociation of odd-electron peptide ions. We have found that charge-remote processes are responsible for a variety of side-chain losses from the precursor ion and some backbone fragmentation. These fragmentation pathways most likely involve hydrogen abstraction by the radical site that initiates subsequent cleavages. These findings are generally relevant to our understanding of the fragmentation patterns of odd-electron peptide ions produced through various approaches including the capture of low-energy electrons, electron detachment, and electron transfer. © 2007 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/70407
ISSN
2014 Impact Factor: 5.636
2014 SCImago Journal Rankings: 2.046
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLaskin, Jen_HK
dc.contributor.authorYang, Zen_HK
dc.contributor.authorLam, Cen_HK
dc.contributor.authorChu, IKen_HK
dc.date.accessioned2010-09-06T06:22:35Z-
dc.date.available2010-09-06T06:22:35Z-
dc.date.issued2007en_HK
dc.identifier.citationAnalytical Chemistry, 2007, v. 79 n. 17, p. 6607-6614en_HK
dc.identifier.issn0003-2700en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70407-
dc.description.abstractComparison between the gas-phase fragmentation of odd-electron M +., [M + H]2+., and [M - 2H]-. ions of model peptides suggests that charge-remote radical-driven fragmentation pathways play an important role in the dissociation of odd-electron peptide ions. We have found that charge-remote processes are responsible for a variety of side-chain losses from the precursor ion and some backbone fragmentation. These fragmentation pathways most likely involve hydrogen abstraction by the radical site that initiates subsequent cleavages. These findings are generally relevant to our understanding of the fragmentation patterns of odd-electron peptide ions produced through various approaches including the capture of low-energy electrons, electron detachment, and electron transfer. © 2007 American Chemical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/acen_HK
dc.relation.ispartofAnalytical Chemistryen_HK
dc.titleCharge-remote fragmentation of odd-electron peptide ionsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-2700&volume=79&spage=6607&epage=6614&date=2007&atitle=Charge-Remote+Fragmentation+of+Odd-Electron+Peptide+Ionsen_HK
dc.identifier.emailChu, IK:ivankchu@hku.hken_HK
dc.identifier.authorityChu, IK=rp00683en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/ac070777ben_HK
dc.identifier.pmid17676923en_HK
dc.identifier.scopuseid_2-s2.0-34548599820en_HK
dc.identifier.hkuros129874en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34548599820&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume79en_HK
dc.identifier.issue17en_HK
dc.identifier.spage6607en_HK
dc.identifier.epage6614en_HK
dc.identifier.isiWOS:000249242900030-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLaskin, J=7102409836en_HK
dc.identifier.scopusauthoridYang, Z=7405435606en_HK
dc.identifier.scopusauthoridLam, C=7402990888en_HK
dc.identifier.scopusauthoridChu, IK=7103327484en_HK

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