| Unusual Fragmentation of
Peptide and Protein in Matrix-assisted Laser Desorption/lonization Mass Spectrometry |
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Unusual Fragmentation
of Peptide and Protein in Matrix-assisted Laser Desorption/Ionization Mass Spectrometry |
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| Mitsuo Takayama.Unusual Fragmentation of
Peptide and Protein in Matrix-assisted Laser Desorption/lonization Mass Spectrometry[J].Journal of Instrumental Analysis,2001,20(Z1):12-13. |
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| Authors: | Mitsuo Takayama |
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| Abstract: | Unusual amine - bond fragmentation on the peptide/protein backbone has been reported using matrix - assisted laser desorption/ionization time - of- flight mass spectrometry (MALDI - TOFMS)The amine - bond cleavage occurred without metastable decay, while the peptide - bond cleavage occurred with metastable decay of peptide ions in a drift region of TOF mass analyzer. It was presumed that the amine - bond cleavage occurred as a non - ergodic process independent of the ionization under MALDI conditions. |
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