Show simple item record

dc.contributor.author Wilson, Katie A.
dc.contributor.author Kellie, Jennifer L.
dc.contributor.author Wetmore, Stacey D.
dc.date.accessioned 2016-08-16T21:21:00Z
dc.date.available 2016-08-16T21:21:00Z
dc.date.issued 2014
dc.identifier.citation Wilson, K. A., Kellie, J. L., & Wetmore, S. D. (2014). DNA-protein, pi-interactions in nature: abundance, structure, composition and strength of contacts between aromatic amino acids and DNA nucleobases or deoxyribose sugar. Nucleic Acids Research, 43(10), 672-6741. doi:10.1093/nar/gku269 en_US
dc.identifier.uri https://hdl.handle.net/10133/4584
dc.description Sherpa Romeo green journal, open access en_US
dc.description.abstract Four hundred twenty-eight high-resolution DNA– protein complexes were chosen for a bioinformatics study. Although 164 crystal structures (38% of those searched) contained no interactions, 574 discrete pi- contacts between the aromatic amino acids and the DNA nucleobases or deoxyribose were identified using strict criteria, including visual inspection. The abundance and structure of the interactions were determined by unequivocally classifying the contacts as either pi–pi stacking, Pi–pi T-shaped or sugar– pi contacts. Three hundred forty-four nucleobase– amino acid pi–pi contacts (60% of all interactions identified) were identified in 175 of the crystal structures searched. Unprecedented in the literature, 230 DNA–protein sugar–pi contacts (40% of all interactions identified) were identified in 137 crystal structures, which involve C–H···pi and/or lone–pair···pi interactions, contain any amino acid and can be classified according to sugar atoms involved. Both pi–pi and sugar–pi interactions display a range of relative monomer orientations and therefore interaction energies (up to –50 (–70) kJ mol−1 for neutral (charged) interactions as determined using quantum chemical calculations). In general, DNA–protein pi-interactions are more prevalent than perhaps currently accepted and the role of such interactions in many biological processes may yet to be uncovered. en_US
dc.language.iso en_CA en_US
dc.publisher Oxford University Press en_US
dc.subject DNA-protein en_US
dc.subject DNA nucleobases en_US
dc.subject Aromatic amino acids en_US
dc.subject Pi-interactions en_US
dc.subject Deoxyribose en_US
dc.title DNA-protein pi-interactions in nature: abundance, structure, composition and strength of contacts between aromatic amino acids and DNA neucleobases or deoxyribose sugar en_US
dc.type Article en_US
dc.publisher.faculty Arts and Science en_US
dc.publisher.department Department of Chemistry and Biochemistry en_US
dc.description.peer-review Yes en_US
dc.publisher.institution University of Lethbridge en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record