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https://hdl.handle.net/2440/43307
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DC Field | Value | Language |
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dc.contributor.author | Bilusich, D. | - |
dc.contributor.author | Bowie, J. | - |
dc.date.issued | 2007 | - |
dc.identifier.citation | Rapid Communications in Mass Spectrometry, 2007; 21(5):619-628 | - |
dc.identifier.issn | 0951-4198 | - |
dc.identifier.issn | 1097-0231 | - |
dc.identifier.uri | http://hdl.handle.net/2440/43307 | - |
dc.description | The definitive version may be found at www.wiley.com | - |
dc.description.abstract | The [M--H](-) ion of a symmetrical peptide containing one intermolecular disulfide linkage cleaves through the disulfide link to produce up to four fragment anions. Two of these characteristic fragments are formed by a cleavage initiated from the Cys enolate anion on the peptide backbone. The other fragment anions are formed by a cleavage directed from an anion site on the disulfide side chain. In the case of an unsymmetrical peptide containing one intermolecular disulfide, the [M--H](-) anion may cleave through the disulfide unit to give a maximum of eight cleavage anions. These fragmentations are low-energy processes as determined by theoretical calculations carried out at the HF/6-31G(d)//AM1 level of theory. Collision-induced mass spectra of the fragment anions may provide the sequence of the peptide. | - |
dc.description.statementofresponsibility | Daniel Bilusich, John H. Bowie | - |
dc.language.iso | en | - |
dc.publisher | John Wiley & Sons Ltd | - |
dc.source.uri | http://www3.interscience.wiley.com/journal/114111046/abstract | - |
dc.subject | Disulfides | - |
dc.subject | Peptides | - |
dc.subject | Peptide Mapping | - |
dc.subject | Spectrometry, Mass, Electrospray Ionization | - |
dc.title | Identification of intermolecular disulfide linkages in underivatised peptides using negative ion electrospray mass spectrometry. A joint experimental and theoretical study | - |
dc.type | Journal article | - |
dc.provenance | Published Online: 5 Feb 2007 | - |
dc.identifier.doi | 10.1002/rcm.2872 | - |
pubs.publication-status | Published | - |
Appears in Collections: | Aurora harvest 6 Chemistry publications |
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