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Kolekcje
Inne
Synthesis and evaluation of dihydro-[1,2,4]triazolo[4,3-a]pyridin-2-ium carboxylates as fixed charge fluorescent derivatization reagents for MEKC and MS proteomic analyses.
Autorzy
Rok wydania
2020
Czasopismo
Journal of Molecular Structure
Numer woluminu
1217
Strony
128426/1-128426/17
DOI
10.1016/j.molstruc.2020.128426
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Proteinogenic amino acids were derivatized via coupling reactions with N-hydroxysuccinimide esters of Safirinium dyes. The obtained compounds were fully characterized by 1H and 13C NMR, IR, and ESI-MS spectral techniques. Elemental analysis, as well as the crystal structure analysis of exemplary compounds, were performed. The absorption and fluorescent properties of the obtained derivatives have been systematically investigated. The optical properties and very good water solubility allowed for the development of a simple method for the determination of exemplary amino acids by means of micellar electrokinetic chromatography. Moreover, a new class of fluorescent peptide building blocks comprising a spiro-conjugated Safirinium-proline system was obtained. Due to the presence of a permanent positive charge, Safirinium-amino acid dervatives are potential candidates for signal enhancers in MS proteomic analysis. The applicability of the examined ionization tags in signal enhancement and peptide sequencing was proved. The obtained results provide an experimental basis for the development of a new approach for trace amino acids, peptides, and proteins detection by means of absorption, fluorescence, and mass spectrometry.
Słowa kluczowe
Amino acids, crystal structure, fluorescencent dyes, lonization tags, Micellar electrokinetic chromatography, Peptides
Adres publiczny
http://dx.doi.org/10.1016/j.molstruc.2020.128426
Strona internetowa wydawcy
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