2022
From nano- to milimolar: dimerization dissociation constant determination
NÁPLAVOVÁ, Alexandra, Aneta KOZELEKOVÁ a Jozef HRITZZákladní údaje
Originální název
From nano- to milimolar: dimerization dissociation constant determination
Název anglicky
From nano- to milimolar: dimerization dissociation constant determination
Autoři
NÁPLAVOVÁ, Alexandra, Aneta KOZELEKOVÁ a Jozef HRITZ
Vydání
Chemistry towards Biology (CTB10), 2022
Další údaje
Typ výsledku
Konferenční abstrakt
Utajení
není předmětem státního či obchodního tajemství
Odkazy
ISBN
978-80-971665-3-3
Klíčová slova česky
14-3-3 protein; dimerizace; oligomerizace proteinů; 19F NMR
Klíčová slova anglicky
14-3-3 protein; dimerization; protein oligomerization; 19F NMR
Změněno: 13. 10. 2022 15:27, Mgr. Alexandra Náplavová
Anotace
V originále
The self-association of proteins is the cornerstone of protein regulation, aiding proper functionality and interactome [1]. To properly understand the role of dimerization of protein, only the detection of such dimer is not sufficient, but a quantitative analysis is crucial. A parameter widely used to quantify the self-association is the dissociation constant KD [2]. The KD describes equilibrium between monomers and higher oligomers - in general, the lower the KD, the higher the propensity for oligomerization. However, KD of various proteins differs in several orders of magnitude, providing a challenge in its determination [3]. Here we showcase an array of biophysical methods for coverage of the whole relevant concentration range. For proteins with KD in nM region we optimised Förster resonance energy transfer assay [4]. In μM range an analytical size exclusion combined with multiple angle light scattering can be employed [3]. Finally, we used 19F Trp NMR for evaluation in higher concentrations. Moreover, we show application of such methods on the example of 14–3–3 proteins – cellular regulators connected to oncologic and neurodegenerative diseases [5,6].
Návaznosti
LM2018127, velká výzkumná infrastruktura |
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LM2018127, velká výzkumná infrastruktura |
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LTAUSA18168, projekt VaV |
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MUNI/C/0091/2022, interní kód MU |
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