2021
Metallothionein dimerization evidenced by QD-based Forster resonance energy transfer and capillary electrophoresis
PAVELICOVA, Kristyna; Lucie VANICKOVA; Yazan HADDAD; Lukas NEJDL; Jan ZITKA et al.Základní údaje
Originální název
Metallothionein dimerization evidenced by QD-based Forster resonance energy transfer and capillary electrophoresis
Autoři
PAVELICOVA, Kristyna; Lucie VANICKOVA; Yazan HADDAD; Lukas NEJDL; Jan ZITKA; Silvia KOCIOVA; Filip MRAVEC; Tomáš VACULOVIČ; Mirek MACKA; Marketa VACULOVICOVA a Vojtech ADAM
Vydání
International Journal of Biological Macromolecules, Elsevier B.V. 2021, 0141-8130
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10601 Cell biology
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 8.025
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/21:00121520
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
FRET; Quantum dots; Oligomerization; Capillary electrophoresis
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 3. 5. 2021 16:22, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Herein, we report a new simple and easy-to-use approach for the characterization of protein oligomerization based on fluorescence resonance energy transfer (FRET) and capillary electrophoresis with LED-induced detection. The FRET pair consisted of quantum dots (QDs) used as an emission tunable donor (emission wavelength of 450 nm) and a cyanine dye (Cy3), providing optimal optical properties as an acceptor. Nonoxidative dimerization of mammalian metallothionein (MT) was investigated using the donor and acceptor covalently conjugated to MT. The main functions of MTs within an organism include the transport and storage of essential metal ions and detoxification of toxic ions. Upon storage under aerobic conditions, MTs form dimers (as well as higher oligomers), which may play an essential role as mediators in oxidoreduction signaling pathways. Due to metal bridging by Cd2+ ions between molecules of metallothionein, the QDs and Cy3 were close enough, enabling a FRET signal. The FRET efficiency was calculated to be in the range of 11-77%. The formation of MT dimers in the presence of Cd2+ ions was confirmed by MALDI-MS analyses. Finally, the process of oligomerization resulting in FRET was monitored by CE, and oligomerization of MT was confirmed. (C) 2020 Elsevier B.V. All rights reserved.
Návaznosti
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