Cations as hydrogen bond donors: a view of electrostatic interactions in DNA. Export

@article{citeulike:298327, abstract = {Cations are bound to nucleic acids in a solvated state. High-resolution X-ray diffraction studies of oligonucleotides provide a detailed view of Mg2+, and occasionally other ions bound to DNA. In a survey of several such structures, certain general observations emerge. First, cations bind preferentially to the guanine base in the major groove or to phosphate group oxygen atoms. Second, cations interact with DNA most frequently via water molecules in their primary solvation shell, direct ion-DNA contacts being only rarely observed. Thus, the solvated ions should be viewed as hydrogen bond donors in addition to point charges. Finally, ion interaction sites are readily exchangeable: The same site may be occupied by any ion, including spermine, as well as by a water molecule.}, address = {Departament d'Enginyeria Quimica, Universitat Politecnica de Catalunya, Barcelona, Spain. juan.a.subirana@upc.es}, author = {Subirana, J. A. and Soler-Lopez, M.}, citeulike-article-id = {298327}, citeulike-linkout-0 = {http://arjournals.annualreviews.org/doi/abs/10.1146/annurev.biophys.32.110601.141726}, citeulike-linkout-1 = {http://dx.doi.org/10.1146/annurev.biophys.32.110601.141726}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/12598364}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=12598364}, doi = {10.1146/annurev.biophys.32.110601.141726}, issn = {1056-8700}, journal = {Annu Rev Biophys Biomol Struct}, keywords = {dna\_solution\_dielectric, solutions}, pages = {27--45}, posted-at = {2008-09-19 10:22:08}, priority = {4}, title = {Cations as hydrogen bond donors: a view of electrostatic interactions in DNA.}, url = {http://dx.doi.org/10.1146/annurev.biophys.32.110601.141726}, volume = {32}, year = {2003} }

TY - JOUR ID - citeulike:298327 L3 - citeulike-article-id:298327 N2 - Cations are bound to nucleic acids in a solvated state. High-resolution X-ray diffraction studies of oligonucleotides provide a detailed view of Mg2+, and occasionally other ions bound to DNA. In a survey of several such structures, certain general observations emerge. First, cations bind preferentially to the guanine base in the major groove or to phosphate group oxygen atoms. Second, cations interact with DNA most frequently via water molecules in their primary solvation shell, direct ion-DNA contacts being only rarely observed. Thus, the solvated ions should be viewed as hydrogen bond donors in addition to point charges. Finally, ion interaction sites are readily exchangeable: The same site may be occupied by any ion, including spermine, as well as by a water molecule. JF - Annu Rev Biophys Biomol Struct SN - 1056-8700 AD - Departament d'Enginyeria Quimica, Universitat Politecnica de Catalunya, Barcelona, Spain. juan.a.subirana@upc.es EP - 45 TI - Cations as hydrogen bond donors: a view of electrostatic interactions in DNA. VL - 32 SP - 27 KW - dna_solution_dielectric KW - solutions AU - Subirana, JA AU - Soler-Lopez, M PY - 2003/// UR - http://dx.doi.org/10.1146/annurev.biophys.32.110601.141726 ER -