2021
Study of alkaloid berberine and its interaction with the human telomeric i-motif DNA structure
GARGALLO, Raimundo, Anna AVIÑÓ, Ramon ERITJA, Petra JAROŠOVÁ, Stefania MAZZINI et. al.Základní údaje
Originální název
Study of alkaloid berberine and its interaction with the human telomeric i-motif DNA structure
Název česky
Alkaloid berberin a jeho interakce s lidskou telomerní DNA strukturou i-motiv
Autoři
GARGALLO, Raimundo (724 Španělsko), Anna AVIÑÓ (724 Španělsko), Ramon ERITJA, Petra JAROŠOVÁ (203 Česká republika, domácí), Stefania MAZZINI, Leonardo SCAGLIONI a Petr TÁBORSKÝ (203 Česká republika, garant, domácí)
Vydání
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Oxford, Elsevier, 2021, 1386-1425
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10400 1.4 Chemical sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.831
Kód RIV
RIV/00216224:14310/21:00120864
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000608169300014
Klíčová slova česky
Berberin; i-motiv; G-kvaduplex
Klíčová slova anglicky
Berberine; I-motif; DNA binders; G-quadruplex
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 11. 2. 2021 14:02, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
The alkaloid berberine presents many biological activities related to its potential to bind DNA structures, such as duplex or G-quadruplex. Recently, it has been proposed that berberine may interact with i-motif structures formed from the folding of cytosine-rich sequences. In the present work, the interaction of this alkaloid with the i-motif formed by the human telomere cytosine-rich sequence, as well as with several positive and negative controls, has been studied. Molecular fluorescence and circular dichroism spectroscopies, as well as nuclear magnetic resonance spectrometry and competitive dialysis, have been used with this purpose. The results shown here reveal that the interaction of berberine with this i-motif is weak, mostly electrostatics in nature and takes place with bases not involved in C·C+ base pairs. Moreover, this ligand is not selective for i-motif structures, as binds equally to both, folded structure, and unfolded strand, without producing any stabilization of the i-motif. As a conclusion, the development of analytical methods based on the interaction of fluorescent ligands, such as berberine, with i-motif structures should consider the thermodynamic aspects related with the interaction, as well as the selectivity of the proposed ligands with different DNA structures, including unfolded strands.