@{MTMT:2016537,
	title = {Guanine, xanthine and uric acid assemblies: comparative theoretical and experimental studies},
	url = {https://m2.mtmt.hu/api/publication/2016537},
	author = {Paragi, Gábor and Szolomájer, János and Kupihár, Zoltán and Batta, Gyula and Kele, Zoltán and Pádár, Petra and Penke, Botond and Zijlstra, Hester and Fonseca Guerra, Célia and Bickelhaupt, F.M and Kovács, Lajos},
	booktitle = {Guanine quartets: structure and application},
	doi = {10.1039/9781849736954-00179},
	unique-id = {2016537},
	abstract = {Proceeding from promising dimer calculations, tetramer and quadruplex assemblies of 9-methylxanthine and 9-methyluric acid have been investigated by quantum-chemical calculations. In the gas phase, the new structures are less stable than the guanine tetrad as a consequence of the absence of a cooperative effect in the former and its presence in the latter. The lack of cooperativity in the new structures can be only partly compensated by strong low-barrier hydrogen bonds (LBHB). Moreover, the new tetramers are positively charged and probably can exist only in the presence of ions.
		 Similar calculations suggest that 3-methylxanthine (3MX) is a good candidate for tetrad and quadruplex structures and the existence of (3MX)n  cat+ aggregates (n = 4, 8; cat+ = NH4+, Na+, K+) has been experimentally observed in the gas phase through mass spectrometry (MS) measurements. Detailed NMR studies in solution have also verified that the „internal” H-bonds (N1H...O6) in the (3MX)4 structures must be stronger than the „external” H-bonds (N7H...O2).
		 In general, we found that guanine quartets (G4) are still more strongly bound than xanthine quartets (X4), despite the fact that they have the same number of hydrogen bonds. This is due to a cooperativity effect in the former case, as follows from our computational analyses. This is true not only in the gas phase but also in telomere-like structures where the quartet coordinates to two sodium ions and this complex is stacked in between two other quartets. In aqueous solution and in the absence of stacking quartet partners, however, the cooperativity is quenched and G4 and X4 are equally strongly bound.},
	year = {2013},
	pages = {179-193},
	orcid-numbers = {Paragi, Gábor/0000-0001-5408-1748; Szolomájer, János/0000-0003-1458-6156; Kupihár, Zoltán/0000-0001-5499-7617; Batta, Gyula/0000-0002-0442-1828; Kele, Zoltán/0000-0002-4401-0302; Penke, Botond/0000-0003-0938-0567; Kovács, Lajos/0000-0002-0331-3980}
}

@article{MTMT:2179966,
	title = {Reduction of metal ions by boranephosphonate DNA},
	url = {https://m2.mtmt.hu/api/publication/2179966},
	author = {Roy, S and Olesiak, M and Pádár, Petra and McCuen, H and Caruthers, MH},
	doi = {10.1039/c2ob26661j},
	journal-iso = {ORG BIOMOL CHEM},
	journal = {ORGANIC & BIOMOLECULAR CHEMISTRY},
	volume = {10},
	unique-id = {2179966},
	issn = {1477-0520},
	abstract = {Oligodeoxyribonucleotides bearing boranephosphonate linkages (bpDNA) were shown to reduce a number of metal ions and form nanoparticles through a novel reaction pathway that leads to phosphate diesters or phosphate tri-esters in water or alcohols respectively. The synthetic utility of this reaction was further demonstrated through the synthesis of oligodeoxyribonucleotides containing phosphate triester linkages. This new reactivity also makes bpDNA promising for use in construction of DNA templated metallic nanostructures.},
	year = {2012},
	eissn = {1477-0539},
	pages = {9130-9133}
}

@article{MTMT:1840208,
	title = {Purinszármazékokból képződő szupramolekuláris rendszerek},
	url = {https://m2.mtmt.hu/api/publication/1840208},
	author = {Paragi, Gábor and Szolomájer, János and Batta, Gyula and Kele, Zoltán and Kupihár, Zoltán and Pádár, Petra and Célia, Fonseca Guerra and F., Matthias Bickelhaupt and Kovács, Lajos},
	journal-iso = {MAGY KEM LAP},
	journal = {MAGYAR KÉMIKUSOK LAPJA},
	volume = {67},
	unique-id = {1840208},
	issn = {0025-0163},
	year = {2012},
	eissn = {1588-1199},
	pages = {88-89},
	orcid-numbers = {Paragi, Gábor/0000-0001-5408-1748; Szolomájer, János/0000-0003-1458-6156; Batta, Gyula/0000-0002-0442-1828; Kele, Zoltán/0000-0002-4401-0302; Kupihár, Zoltán/0000-0001-5499-7617; Kovács, Lajos/0000-0002-0331-3980}
}

@misc{MTMT:1871837,
	title = {Purinszármazékokból képződő szupramolekuláris rendszerek},
	url = {https://m2.mtmt.hu/api/publication/1871837},
	author = {Paragi, Gábor and Szolomájer, János and Batta, Gyula and Kele, Zoltán and Kupihár, Zoltán and Pádár, Petra and Fonseca Guerra, Célia and Bickelhaupt, FM and Kovács, Lajos},
	unique-id = {1871837},
	year = {2011},
	orcid-numbers = {Paragi, Gábor/0000-0001-5408-1748; Szolomájer, János/0000-0003-1458-6156; Batta, Gyula/0000-0002-0442-1828; Kele, Zoltán/0000-0002-4401-0302; Kupihár, Zoltán/0000-0001-5499-7617; Kovács, Lajos/0000-0002-0331-3980}
}

@misc{MTMT:1871773,
	title = {A 3-metilxantin vegyület kvadruplex képző tulajdonságának számítógépes, preparatív és analitikai vizsgálata},
	url = {https://m2.mtmt.hu/api/publication/1871773},
	author = {Paragi, Gábor and Szolomájer, János and Batta, Gyula and Fonseca Guerra, Célia and Bickelhaupt, FM and Kele, Zoltán and Pádár, Petra and Kupihár, Zoltán and Kovács, Lajos},
	unique-id = {1871773},
	year = {2011},
	orcid-numbers = {Paragi, Gábor/0000-0001-5408-1748; Szolomájer, János/0000-0003-1458-6156; Batta, Gyula/0000-0002-0442-1828; Kele, Zoltán/0000-0002-4401-0302; Kupihár, Zoltán/0000-0001-5499-7617; Kovács, Lajos/0000-0002-0331-3980}
}

@CONFERENCE{MTMT:1871765,
	title = {3-Substituted xanthines as promising candidates for tetrad formation: synthetic, analytical and computational studies},
	url = {https://m2.mtmt.hu/api/publication/1871765},
	author = {Szolomájer, János and Bánfi, Annamária and Paragi, Gábor and Kele, Zoltán and Pádár, Petra and Kupihár, Zoltán and Kovács, Lajos},
	booktitle = {2nd International Training School on G-Quadruplexes},
	unique-id = {1871765},
	year = {2011},
	orcid-numbers = {Szolomájer, János/0000-0003-1458-6156; Paragi, Gábor/0000-0001-5408-1748; Kele, Zoltán/0000-0002-4401-0302; Kupihár, Zoltán/0000-0001-5499-7617; Kovács, Lajos/0000-0002-0331-3980}
}

@CONFERENCE{MTMT:1871761,
	title = {The synthesis and glycosidase inhibitory evaluation of chiral polyhydroxycyclopenta[c]isoxazolidines},
	url = {https://m2.mtmt.hu/api/publication/1871761},
	author = {Bokros, Attila and Pádár, Petra and Szolomájer, János and Kupihár, Zoltán and Bánfi, Annamária and Varga, Nemere and Kovács, Lajos},
	booktitle = {XIVth Conference on Heterocycles in Bio-organic Chemistry},
	unique-id = {1871761},
	year = {2011},
	orcid-numbers = {Kovács, Lajos/0000-0002-0331-3980}
}

@CONFERENCE{MTMT:1871755,
	title = {Conformational analysis of carbohydrate-derived polyhydroxyheterocycles: computational and NMR studies},
	url = {https://m2.mtmt.hu/api/publication/1871755},
	author = {Bokros, Attila and Paragi, Gábor and Pádár, Petra and Szolomájer, János and Kovács, Lajos},
	booktitle = {Conformational Analysis of Carbohydrates and Protein/Carbohydrate Interactions (CAC-PCI)},
	unique-id = {1871755},
	year = {2011},
	orcid-numbers = {Paragi, Gábor/0000-0001-5408-1748; Szolomájer, János/0000-0003-1458-6156; Kovács, Lajos/0000-0002-0331-3980}
}

@CONFERENCE{MTMT:1871741,
	title = {The use of carbohydrate pool in the synthesis of chiral polyhydroxyheterocycles as potential glycosidase inhibitors},
	url = {https://m2.mtmt.hu/api/publication/1871741},
	author = {Bokros, Attila and Paragi, Gábor and Pádár, Petra and Szolomájer, János and Bánfi, Annamária and Kovács, Lajos},
	booktitle = {Modern Synthetic Methods and Chiral Europe},
	unique-id = {1871741},
	year = {2011},
	orcid-numbers = {Paragi, Gábor/0000-0001-5408-1748; Szolomájer, János/0000-0003-1458-6156; Kovács, Lajos/0000-0002-0331-3980}
}

@article{MTMT:1699861,
	title = {Kémiai bemutatókísérletek VI. rész. Heves reakciók [1]},
	url = {https://m2.mtmt.hu/api/publication/1699861},
	author = {Bokros, Attila and Pádár, Petra and Szolomájer, János and Kupihár, Zoltán and Kele, Zoltán and Kovács, Lajos},
	journal-iso = {A KÉMIA TANÍTÁSA},
	journal = {A KÉMIA TANÍTÁSA: MÓDSZERTANI FOLYÓIRAT},
	volume = {19},
	unique-id = {1699861},
	issn = {1216-7576},
	year = {2011},
	pages = {3-8},
	orcid-numbers = {Kovács, Lajos/0000-0002-0331-3980}
}