Structure and DNA/BSA binding study of zinc(II) complex with 4-ethynyl-2,2’-bipyridine Scientific paper

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Tina Andrejević
https://orcid.org/0000-0002-9537-5926
Darko Ašanin
https://orcid.org/0000-0003-1098-400X
Aurélien Crochet
https://orcid.org/0000-0002-4763-2764
Nevena Stevanović
https://orcid.org/0000-0003-3261-478X
Ivana Vučenović
https://orcid.org/0000-0003-3927-7915
Fabio Zobi
https://orcid.org/0000-0002-9077-7184
Miloš Djuran
https://orcid.org/0000-0003-2763-2852
Biljana Glišić
https://orcid.org/0000-0002-6343-8611

Abstract

In the present study, a zinc(II) complex with 4-ethynyl-2,2’-bipyri­dine (ebpy), [Zn(ebpy)Cl2], was synthesized and characterized by spectro­scopic (1H-NMR, IR and UV–Vis) methods and molar conductivity measure­ment. The crystal structure of the [Zn(ebpy)Cl2] complex was determined by single-crystal X-ray diffraction analysis, confirming the bidentate coordination of the ebpy ligand through its two nitrogen atoms, while the remaining two coordination sites are occupied by two chloride ions. With the aim to inves­tigate the reactivity of the synthesized zinc(II) complex toward biologically important molecules, its binding affinity to calf thymus DNA (ct-DNA) and bovine serum albumin (BSA) was studied by fluorescence emission spectro­scopy. From the obtained results, it can be concluded that [Zn(ebpy)Cl2] com­plex binds to bovine serum albumin reversibly, while the combination of ethid­ium bromide (EthBr) and Hoechst 33258 (2’-(4-hydroxyphenyl)-5-[5-(4-meth­ylpiperazine-1-yl)benzimidazo-2-yl]-benzimidazole) competitive binding study suggests that this complex interacts with ct-DNA through the minor groove binding, which is in agreement with molecular docking study.

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How to Cite
[1]
T. . Andrejević, “Structure and DNA/BSA binding study of zinc(II) complex with 4-ethynyl-2,2’-bipyridine: Scientific paper”, J. Serb. Chem. Soc., vol. 88, no. 12, pp. 1293–1306 , Dec. 2023.
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Theme issue honoring Professor Vukadin Leovac's 80th birthday

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