scholarly journals In vitro susceptibility of Trichomonas vaginalis to AT-specific minor groove binding drugs

2003 ◽  
Vol 52 (2) ◽  
pp. 287-289 ◽  
Author(s):  
P. Chavalitshewinkoon-Petmitr
Keyword(s):  
Trichomonas Vaginalis ◽  
Minor Groove ◽  
Minor Groove Binding ◽  
Groove Binding ◽  
In Vitro Susceptibility

Multi-spectroscopic and molecular modelling studies on the interaction of esculetin with calf thymus DNA

2015 ◽  
Vol 11 (2) ◽  
pp. 522-531 ◽  
Author(s):  
Tarique Sarwar ◽  
Mohammed Amir Husain ◽  
Sayeed Ur Rehman ◽  
Hassan Mubarak Ishqi ◽  
Mohammad Tabish
Keyword(s):  
Molecular Modelling ◽  
In Silico ◽  
Minor Groove ◽  
Minor Groove Binding ◽  
Groove Binding ◽  
Calf Thymus ◽  
Molecular Modelling Studies ◽  
Modelling Studies ◽  
Ct Dna

Minor groove binding of esculetin with Ct-DNA was established by a series of in vitro experiments and in silico analyses.

scholarly journals In and out of the minor groove: interaction of an AT-rich DNA with the drug CD27

2014 ◽  
Vol 70 (6) ◽  
pp. 1614-1621 ◽  
Author(s):  
Francisco J. Acosta-Reyes ◽  
Christophe Dardonville ◽  
Harry P. de Koning ◽  
Manal Natto ◽  
Juan A. Subirana ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Trichomonas Vaginalis ◽  
Malaria Parasite ◽  
Bound Water ◽  
Minor Groove ◽  
Minor Groove Binding ◽  
Groove Binding ◽  
Base Pairs ◽  
Causative Agents ◽  
Effective Drugs

The DNA of several pathogens is very rich in AT base pairs. Typical examples include the malaria parasitePlasmodium falciparumand the causative agents of trichomoniasis and trypanosomiases. This fact has prompted studies of drugs which interact with the minor groove of DNA, some of which are used in medical practice. Previous studies have been performed almost exclusively with the AATT sequence. New features should be uncovered through the study of different DNA sequences. In this paper, the crystal structure of the complex of the DNA duplex d(AAAATTTT)2with the dicationic drug 4,4′-bis(imidazolinylamino)diphenylamine (CD27) is presented. The drug binds to the minor groove of DNA as expected, but it shows two new features that have not previously been described: (i) the drugs protrude from the DNA and interact with neighbouring molecules, so that they may act as cross-linking agents, and (ii) the drugs completely cover the whole minor groove of DNA and displace bound water. Thus, they may prevent the access to DNA of proteins such as AT-hook proteins. These features are also expected for other minor-groove binding drugs when associated with all-AT DNA. These findings allow a better understanding of this family of compounds and will help in the development of new, more effective drugs. New data on the biological interaction of CD27 with the causative agent of trichomoniasis,Trichomonas vaginalis, are also reported.

scholarly journals 1H NMR study of [d(GCGATCGC)]2 and its interaction with minor groove binding 4',6-diamidino-2-phenylindole.

1993 ◽  
Vol 268 (6) ◽  
pp. 3944-3951
Author(s):  
E. Trotta ◽  
E. D'Ambrosio ◽  
N. Del Grosso ◽  
G. Ravagnan ◽  
M. Cirilli ◽  
...  
Keyword(s):  
1H Nmr ◽  
Minor Groove ◽  
Minor Groove Binding ◽  
Groove Binding ◽  
Nmr Study

scholarly journals Interaction between DNA, Albumin and Apo-Transferrin and Iridium(III) Complexes with Phosphines Derived from Fluoroquinolones as a Potent Anticancer Drug

2021 ◽  
Vol 14 (7) ◽  
pp. 685
Author(s):  
Sandra Amanda Kozieł ◽  
Monika Katarzyna Lesiów ◽  
Daria Wojtala ◽  
Edyta Dyguda-Kazimierowicz ◽  
Dariusz Bieńko ◽  
...  
Keyword(s):  
Molecular Docking ◽  
Serum Proteins ◽  
Docking Study ◽  
Minor Groove ◽  
Docking Studies ◽  
Minor Groove Binding ◽  
Binding Modes ◽  
Groove Binding ◽  
Molecular Docking Study ◽  
Threading Intercalation

A group of cytotoxic half-sandwich iridium(III) complexes with aminomethyl(diphenyl)phosphine derived from fluoroquinolone antibiotics exhibit the ability to (i) accumulate in the nucleus, (ii) induce apoptosis, (iii) activate caspase-3/7 activity, (iv) induce the changes in cell cycle leading to G2/M phase arrest, and (v) radicals generation. Herein, to elucidate the cytotoxic effects, we investigated the interaction of these complexes with DNA and serum proteins by gel electrophoresis, fluorescence spectroscopy, circular dichroism, and molecular docking studies. DNA binding experiments established that the complexes interact with DNA by moderate intercalation and predominance of minor groove binding without the capability to cause a double-strand cleavage. The molecular docking study confirmed two binding modes: minor groove binding and threading intercalation with the fluoroquinolone part of the molecule involved in pi stacking interactions and the Ir(III)-containing region positioned within the major or minor groove. Fluorescence spectroscopic data (HSA and apo-Tf titration), together with molecular docking, provided evidence that Ir(III) complexes can bind to the proteins in order to be transferred. All the compounds considered herein were found to bind to the tryptophan residues of HSA within site I (subdomain II A). Furthermore, Ir(III) complexes were found to dock within the apo-Tf binding site, including nearby tyrosine residues.

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