scholarly journals Imino proton NMR guides the reprogramming of A•T specific minor groove binders for mixed base pair recognition

2016 ◽  
Vol 44 (10) ◽  
pp. 4519-4527 ◽  
Author(s):  
Narinder K. Harika ◽  
Ananya Paul ◽  
Ekaterina Stroeva ◽  
Yun Chai ◽  
David W. Boykin ◽  
...  
1995 ◽  
Vol 73 (6) ◽  
pp. 878-884 ◽  
Author(s):  
Ding-Kwo Chang ◽  
Shu-Fang Cheng ◽  
Ting-Lin Chien

Molecular mechanics calculations were performed on the three structures of the complexes formed by the derivatives of Hoechst 33258 and dodecameric DNA duplex d(CGCGAATTCGCG)2. Formation and docking energies of these complexes were compared. It was found that the CG site that is 3′ to the central AATT region can be tolerated by the drugs. This is probably due to the presence of the bulky piperazine ring and, more pronouncedly, by alkylated analogues of the drug that prefer the wider minor groove formed by the GC base pair region of B-DNA. The argument of bulkiness of the piperazine moiety as the origin of enhancement of GC affinity is supported by detailed structural analysis of the intermolecular interface and widening of the DNA minor groove at the binding site. Implications of the results are discussed. Keywords: minor groove binder, docking energy, sequence specificity.


2015 ◽  
Vol 25 (21) ◽  
pp. 4927-4932 ◽  
Author(s):  
Ananya Paul ◽  
Rupesh Nanjunda ◽  
Arvind Kumar ◽  
Sarah Laughlin ◽  
Raja Nhili ◽  
...  

2008 ◽  
Vol 36 (18) ◽  
pp. 5910-5921 ◽  
Author(s):  
A. V. Vargiu ◽  
P. Ruggerone ◽  
A. Magistrato ◽  
P. Carloni

2017 ◽  
Vol 136 ◽  
pp. 561-572 ◽  
Author(s):  
Fraser J. Scott ◽  
Ryan J.O. Nichol ◽  
Abedawn I. Khalaf ◽  
Federica Giordani ◽  
Kirsten Gillingwater ◽  
...  

Tetrahedron ◽  
2017 ◽  
Vol 73 (21) ◽  
pp. 3014-3024 ◽  
Author(s):  
Claudia Sissi ◽  
Luca Dovigo ◽  
Maria Laura Greco ◽  
Antonella Ciancetta ◽  
Stefano Moro ◽  
...  

2016 ◽  
Vol 12 ◽  
pp. 1348-1360 ◽  
Author(s):  
Svetlana V Vasilyeva ◽  
Vyacheslav V Filichev ◽  
Alexandre S Boutorine

Efficient protocols based on Cu(I)-catalyzed azide–alkyne cycloaddition were developed for the synthesis of conjugates of pyrrole–imidazole polyamide minor groove binders (MGB) with fluorophores and with triplex-forming oligonucleotides (TFOs). Diverse bifunctional linkers were synthesized and used for the insertion of terminal azides or alkynes into TFOs and MGBs. The formation of stable triple helices by TFO-MGB conjugates was evaluated by gel-shift experiments. The presence of MGB in these conjugates did not affect the binding parameters (affinity and triplex stability) of the parent TFOs.


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