J 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.