A solution study of protonation chemical equlibria of nucleobases and short oligonucleotides
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F11%3A00053670" target="_blank" >RIV/00216224:14310/11:00053670 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
A solution study of protonation chemical equlibria of nucleobases and short oligonucleotides
Popis výsledku v původním jazyce
The protonation constants of nucleobases and relevant nucleosides and nucleotides were determined by means of potenciometry and molecular absorption spectroscopy in UV region (I=0.15 mol.l-1 NaCl,t=25C) and the experimental data were evaluated by OPIUM program. In addition, thermodynamic parameters for nucleobase ligands were estimated. Also, some examples of ligand complexation by transition metal ions (e.g. copper(II),zinc(II),kadmium(II)) will be presented and their importance for bioligand speciation will be discussed. The protonation behavior of ODN containing C, i.e.(CCC)n,n=1?3, was followed by means of molecular spectroscopy in pH region 2?8 and variable temperature and ionic strength adjusted by NaCl. The experimental data were treated by means of OPIUM, MCR ? ALS and EQUISPEC software and distribution diagram of species as pH fuction were calculated. For comparison, the protonation behavior of ODN with the (CAC)3, A3C3C3 and C3A3C3 sequence was also investigated.
Název v anglickém jazyce
A solution study of protonation chemical equlibria of nucleobases and short oligonucleotides
Popis výsledku anglicky
The protonation constants of nucleobases and relevant nucleosides and nucleotides were determined by means of potenciometry and molecular absorption spectroscopy in UV region (I=0.15 mol.l-1 NaCl,t=25C) and the experimental data were evaluated by OPIUM program. In addition, thermodynamic parameters for nucleobase ligands were estimated. Also, some examples of ligand complexation by transition metal ions (e.g. copper(II),zinc(II),kadmium(II)) will be presented and their importance for bioligand speciation will be discussed. The protonation behavior of ODN containing C, i.e.(CCC)n,n=1?3, was followed by means of molecular spectroscopy in pH region 2?8 and variable temperature and ionic strength adjusted by NaCl. The experimental data were treated by means of OPIUM, MCR ? ALS and EQUISPEC software and distribution diagram of species as pH fuction were calculated. For comparison, the protonation behavior of ODN with the (CAC)3, A3C3C3 and C3A3C3 sequence was also investigated.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
CB - Analytická chemie, separace
OECD FORD obor
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Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2011
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů