7-Deaza purine bases offer a higher ion stability in the analysis of dna by matrix-assisted laser desorption/ionization mass spectrometry
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Oligodeoxynucleotides which contain 7-deaza analogues of the normal purine nucleotides have been synthesized both enzymatically and chemically. When subjected to matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) analysis, the modified samples offer both higher stability and increased sensitivity compared to otherwise identical unmodified Oligodeoxynucleotides. In view of these observations, models for the fragmentation of oligodeoxynucleotides in MALDI-MS with positive ion detection mode are presented. Additionally, the potential use of 7-deaza purine nucleotides in the MALDI-MS analysis of DNA sequencing reactions is discussed.
Originalsprog | Engelsk |
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Tidsskrift | Rapid Communications in Mass Spectrometry |
Vol/bind | 9 |
Udgave nummer | 6 |
Sider (fra-til) | 525 - 531 |
ISSN | 0951-4198 |
DOI | |
Status | Udgivet - 1995 |
Eksternt udgivet | Ja |
ID: 11231924