1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Johannsen, S. Boehme, D. Duepre, N. Mueller, J. Sigel, R.K.O. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic C8 H13 N2 O6 P 264.172 1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)-1H-imidazole DNA linking C10 H14 N5 O6 P 331.222 y 2'-DEOXYADENOSINE-5'-MONOPHOSPHATE DNA linking C10 H15 N2 O8 P 322.208 y THYMIDINE-5'-MONOPHOSPHATE DNA linking To be Published 0353 Solution structure at different pHs of a DNA hairpin containing artificial nucleotides DIH-DNA-17-mer 5015.311 DNA (5'-D(*DTP*DTP*DAP*DAP*DTP*DTP*DTP*(D33)P*(D33)P*(D33)P*DAP*DAP*DAP*DTP*DTP*DAP*DA)-3') 1 syn polymer no yes (DT)(DT)(DA)(DA)(DT)(DT)(DT)(D33)(D33)(D33)(DA)(DA)(DA)(DT)(DT)(DA)(DA) TTAATTTNNNAAATTAA A polydeoxyribonucleotide n n n n n n n n n n n n n n n n n -13.931 1 20 A 1 A 17 5.509 A_DT1:DA17_A 1 -20.617 -0.210 0.448 -0.159 -1.367 1 20 A 2 A 16 -3.860 A_DT2:DA16_A 2 -10.248 -0.227 0.463 -0.221 5.030 1 20 A 3 A 15 -1.907 A_DA3:DT15_A 3 -13.840 -0.161 0.331 -0.185 1.828 1 20 A 4 A 14 -7.915 A_DA4:DT14_A 4 -11.042 0.608 0.429 -0.061 -0.728 1 20 A 5 A 13 -4.357 A_DT5:DA13_A 5 -11.257 -0.776 0.352 -0.094 -1.363 1 20 A 6 A 12 -1.960 A_DT6:DA12_A 6 -12.363 -0.004 0.366 -0.110 2.600 1 20 A 7 A 11 9.165 A_DT7:DA11_A 7 -10.058 0.300 0.731 -0.422 2.873 35.985 A A 1 2 -16.524 A A 17 16 3.079 -10.070 -0.226 0.363 AA_DT1DT2:DA16DA17_AA 1 -2.840 4.661 34.478 1.921 -0.010 2.676 35.646 A A 2 3 13.330 A A 16 15 2.774 8.092 0.294 -0.173 AA_DT2DA3:DT15DA16_AA 2 1.367 -2.252 34.718 -1.275 -0.312 3.206 36.343 A A 3 4 18.855 A A 15 14 3.301 11.567 -0.674 0.149 AA_DA3DA4:DT14DT15_AA 3 -1.172 1.911 34.492 -1.411 0.914 3.505 29.678 A A 4 5 15.327 A A 14 13 3.664 7.756 0.217 -0.167 AA_DA4DT5:DA13DT14_AA 4 2.236 -4.418 28.583 -2.150 0.102 3.822 36.090 A A 5 6 3.022 A A 13 12 3.806 1.871 0.525 0.429 AA_DT5DT6:DA12DA13_AA 5 -0.077 0.124 36.043 0.383 -0.860 3.343 35.905 A A 6 7 -4.022 A A 12 11 3.427 -2.477 1.105 0.365 AA_DT6DT7:DA11DA12_AA 6 -1.645 2.672 35.785 0.959 -2.037 repository Initial release Version format compliance 1 0 2009-07-07 1 1 2011-07-13 NMR solution structure of modified DNA containing imidazole nucleosides at neutral pH NMR solution structure of modified DNA containing imidazole nucleosides at basic pH BMRB Y RCSB 2008-07-04 REL REL 417 170 20 11 216 structures with the lowest energy 200 20 2D 1H-1H NOESY 2D 1H-1H TOCSY 2D 1H-13C HSQC 2D 1H-1H NOESY 0.5 mM 120 mM 0.5 mM 120 mM 120 mM 4.7 ambient 298 K 120 mM 4.7 ambient 278 K torsion angle dynamics, simulated annealing 1 lowest energy 0.5 mM DIH DNA 17-mer, 120 mM sodium perchlorate, 100% D2O 100% D2O 0.5 mM DIH DNA 17-mer, 120 mM sodium perchlorate, 90% H2O/10% D2O 90% H2O/10% D2O Bruker Biospin processing TOPSPIN 1.3, 2.0, 2.1 Goddard chemical shift assignment SPARKY 3.1 Goddard data analysis SPARKY 3.1 Goddard peak picking SPARKY 3.1 Guntert, Braun and Wuthrich structure solution DYANA 1.5 Schwieters, Kuszewski, Tjandra and Clore refinement X-PLOR_NIH 2.15 700 Bruker Avance Bruker Avance T 1 n 1 DT 1 A T 2 n 2 DT 2 A A 3 n 3 DA 3 A A 4 n 4 DA 4 A T 5 n 5 DT 5 A T 6 n 6 DT 6 A T 7 n 7 DT 7 A D33 8 n 8 D33 8 A D33 9 n 9 D33 9 A D33 10 n 10 D33 10 A A 11 n 11 DA 11 A A 12 n 12 DA 12 A A 13 n 13 DA 13 A T 14 n 14 DT 14 A T 15 n 15 DT 15 A A 16 n 16 DA 16 A A 17 n 17 DA 17 A author_defined_assembly 1 monomeric 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 x,y,z identity operation 0.0000000000 0.0000000000 0.0000000000 1 A A OP2 H44 D33 D33 8 9 1.56 3 A A OP2 H44 D33 D33 8 9 1.54 5 A A H3 N1 DT DA 1 17 1.60 8 A A OP2 H44 D33 D33 8 9 1.54 10 A A OP2 H44 D33 D33 8 9 1.56 17 A A H3 N1 DT DA 7 11 1.59 20 A A H3 N1 DT DA 1 17 1.59 1 2.37 0.30 108.30 110.67 A A A O4' C1' N1 DT DT DT 1 1 1 N 1 2.74 0.30 108.30 111.04 A A A O4' C1' N1 DT DT DT 2 2 2 N 1 2.15 0.30 108.30 110.45 A A A O4' C1' N9 DA DA DA 3 3 3 N 1 2.30 0.30 108.30 110.60 A A A O4' C1' N9 DA DA DA 4 4 4 N 1 2.37 0.30 108.30 110.67 A A A O4' C1' N1 DT DT DT 5 5 5 N 1 2.53 0.30 108.30 110.83 A A A O4' C1' N1 DT DT DT 6 6 6 N 1 2.88 0.30 108.30 111.18 A A A O4' C1' N1 DT DT DT 7 7 7 N 1 2.53 0.30 108.30 110.83 A A A O4' C1' N9 DA DA DA 11 11 11 N 1 2.08 0.30 108.30 110.38 A A A O4' C1' N9 DA DA DA 13 13 13 N 1 2.30 0.30 108.30 110.60 A A A O4' C1' N1 DT DT DT 14 14 14 N 1 2.76 0.30 108.30 111.06 A A A O4' C1' N1 DT DT DT 15 15 15 N 1 2.78 0.30 108.30 111.08 A A A O4' C1' N9 DA DA DA 16 16 16 N 1 2.60 0.30 108.30 110.90 A A A O4' C1' N9 DA DA DA 17 17 17 N 2 2.50 0.30 108.30 110.80 A A A O4' C1' N1 DT DT DT 1 1 1 N 2 2.69 0.30 108.30 110.99 A A A O4' C1' N1 DT DT DT 2 2 2 N 2 -3.81 0.60 122.90 119.09 A A A C6 C5 C7 DT DT DT 2 2 2 N 2 2.08 0.30 108.30 110.38 A A A O4' C1' N9 DA DA DA 3 3 3 N 2 2.52 0.30 108.30 110.82 A A A O4' C1' N9 DA DA DA 4 4 4 N 2 2.36 0.30 108.30 110.66 A A A O4' C1' N1 DT DT DT 5 5 5 N 2 2.82 0.30 108.30 111.12 A A A O4' C1' N1 DT DT DT 6 6 6 N 2 2.66 0.30 108.30 110.96 A A A O4' C1' N1 DT DT DT 7 7 7 N 2 2.35 0.30 108.30 110.65 A A A O4' C1' N9 DA DA DA 11 11 11 N 2 2.02 0.30 108.30 110.32 A A A O4' C1' N9 DA DA DA 12 12 12 N 2 2.22 0.30 108.30 110.52 A A A O4' C1' N9 DA DA DA 13 13 13 N 2 2.37 0.30 108.30 110.67 A A A O4' C1' N1 DT DT DT 14 14 14 N 2 2.58 0.30 108.30 110.88 A A A O4' C1' N1 DT DT DT 15 15 15 N 2 2.94 0.30 108.30 111.24 A A A O4' C1' N9 DA DA DA 16 16 16 N 2 2.72 0.30 108.30 111.02 A A A O4' C1' N9 DA DA DA 17 17 17 N 3 2.47 0.30 108.30 110.77 A A A O4' C1' N1 DT DT DT 1 1 1 N 3 2.61 0.30 108.30 110.91 A A A O4' C1' N1 DT DT DT 2 2 2 N 3 -3.82 0.60 122.90 119.08 A A A C6 C5 C7 DT DT DT 2 2 2 N 3 2.08 0.30 108.30 110.38 A A A O4' C1' N9 DA DA DA 3 3 3 N 3 2.34 0.30 108.30 110.64 A A A O4' C1' N9 DA DA DA 4 4 4 N 3 2.20 0.30 108.30 110.50 A A A O4' C1' N1 DT DT DT 5 5 5 N 3 2.85 0.30 108.30 111.15 A A A O4' C1' N1 DT DT DT 6 6 6 N 3 -3.66 0.60 122.90 119.24 A A A C6 C5 C7 DT DT DT 6 6 6 N 3 3.06 0.30 108.30 111.36 A A A O4' C1' N1 DT DT DT 7 7 7 N 3 2.49 0.30 108.30 110.79 A A A O4' C1' N9 DA DA DA 11 11 11 N 3 2.38 0.30 108.30 110.68 A A A O4' C1' N9 DA DA DA 12 12 12 N 3 2.06 0.30 108.30 110.36 A A A O4' C1' N9 DA DA DA 13 13 13 N 3 1.93 0.30 108.30 110.23 A A A O4' C1' N1 DT DT DT 14 14 14 N 3 2.46 0.30 108.30 110.76 A A A O4' C1' N1 DT DT DT 15 15 15 N 3 2.74 0.30 108.30 111.04 A A A O4' C1' N9 DA DA DA 16 16 16 N 3 2.39 0.30 108.30 110.69 A A A O4' C1' N9 DA DA DA 17 17 17 N 4 2.37 0.30 108.30 110.67 A A A O4' C1' N1 DT DT DT 1 1 1 N 4 2.54 0.30 108.30 110.84 A A A O4' C1' N1 DT DT DT 2 2 2 N 4 2.50 0.30 108.30 110.80 A A A O4' C1' N9 DA DA DA 3 3 3 N 4 2.34 0.30 108.30 110.64 A A A O4' C1' N9 DA DA DA 4 4 4 N 4 2.27 0.30 108.30 110.57 A A A O4' C1' N1 DT DT DT 5 5 5 N 4 3.01 0.30 108.30 111.31 A A A O4' C1' N1 DT DT DT 6 6 6 N 4 2.73 0.30 108.30 111.03 A A A O4' C1' N1 DT DT DT 7 7 7 N 4 2.40 0.30 108.30 110.70 A A A O4' C1' N9 DA DA DA 11 11 11 N 4 1.97 0.30 108.30 110.27 A A A O4' C1' N9 DA DA DA 12 12 12 N 4 2.14 0.30 108.30 110.44 A A A O4' C1' N9 DA DA DA 13 13 13 N 4 2.21 0.30 108.30 110.51 A A A O4' C1' N1 DT DT DT 14 14 14 N 4 2.84 0.30 108.30 111.14 A A A O4' C1' N1 DT DT DT 15 15 15 N 4 2.54 0.30 108.30 110.84 A A A O4' C1' N9 DA DA DA 16 16 16 N 4 2.60 0.30 108.30 110.90 A A A O4' C1' N9 DA DA DA 17 17 17 N 5 2.18 0.30 108.30 110.48 A A A O4' C1' N1 DT DT DT 1 1 1 N 5 -3.61 0.60 122.90 119.29 A A A C6 C5 C7 DT DT DT 1 1 1 N 5 2.58 0.30 108.30 110.88 A A A O4' C1' N1 DT DT DT 2 2 2 N 5 -3.63 0.60 122.90 119.27 A A A C6 C5 C7 DT DT DT 2 2 2 N 5 2.42 0.30 108.30 110.72 A A A O4' C1' N9 DA DA DA 3 3 3 N 5 2.69 0.30 108.30 110.99 A A A O4' C1' N9 DA DA DA 4 4 4 N 5 2.41 0.30 108.30 110.71 A A A O4' C1' N1 DT DT DT 5 5 5 N 5 2.72 0.30 108.30 111.02 A A A O4' C1' N1 DT DT DT 6 6 6 N 5 2.95 0.30 108.30 111.25 A A A O4' C1' N1 DT DT DT 7 7 7 N 5 -3.63 0.60 122.90 119.27 A A A C6 C5 C7 DT DT DT 7 7 7 N 5 2.70 0.30 108.30 111.00 A A A O4' C1' N9 DA DA DA 11 11 11 N 5 2.72 0.30 108.30 111.02 A A A O4' C1' N9 DA DA DA 12 12 12 N 5 2.22 0.30 108.30 110.52 A A A O4' C1' N9 DA DA DA 13 13 13 N 5 2.42 0.30 108.30 110.72 A A A O4' C1' N1 DT DT DT 14 14 14 N 5 -3.61 0.60 122.90 119.29 A A A C6 C5 C7 DT DT DT 14 14 14 N 5 2.43 0.30 108.30 110.73 A A A O4' C1' N1 DT DT DT 15 15 15 N 5 2.72 0.30 108.30 111.02 A A A O4' C1' N9 DA DA DA 16 16 16 N 5 2.49 0.30 108.30 110.79 A A A O4' C1' N9 DA DA DA 17 17 17 N 6 2.65 0.30 108.30 110.95 A A A O4' C1' N1 DT DT DT 1 1 1 N 6 -3.68 0.60 122.90 119.22 A A A C6 C5 C7 DT DT DT 1 1 1 N 6 2.60 0.30 108.30 110.90 A A A O4' C1' N1 DT DT DT 2 2 2 N 6 -3.66 0.60 122.90 119.24 A A A C6 C5 C7 DT DT DT 2 2 2 N 6 2.39 0.30 108.30 110.69 A A A O4' C1' N9 DA DA DA 3 3 3 N 6 2.93 0.30 108.30 111.23 A A A O4' C1' N9 DA DA DA 4 4 4 N 6 2.10 0.30 108.30 110.40 A A A O4' C1' N1 DT DT DT 5 5 5 N 6 2.18 0.30 108.30 110.48 A A A O4' C1' N1 DT DT DT 6 6 6 N 6 2.74 0.30 108.30 111.04 A A A O4' C1' N1 DT DT DT 7 7 7 N 6 -3.61 0.60 122.90 119.29 A A A C6 C5 C7 DT DT DT 7 7 7 N 6 2.40 0.30 108.30 110.70 A A A O4' C1' N9 DA DA DA 11 11 11 N 6 1.85 0.30 108.30 110.15 A A A O4' C1' N9 DA DA DA 12 12 12 N 6 2.13 0.30 108.30 110.43 A A A O4' C1' N9 DA DA DA 13 13 13 N 6 2.23 0.30 108.30 110.53 A A A O4' C1' N1 DT DT DT 14 14 14 N 6 2.91 0.30 108.30 111.21 A A A O4' C1' N1 DT DT DT 15 15 15 N 6 2.91 0.30 108.30 111.21 A A A O4' C1' N9 DA DA DA 16 16 16 N 6 2.84 0.30 108.30 111.14 A A A O4' C1' N9 DA DA DA 17 17 17 N 7 2.80 0.30 108.30 111.10 A A A O4' C1' N1 DT DT DT 1 1 1 N 7 2.37 0.30 108.30 110.67 A A A O4' C1' N1 DT DT DT 2 2 2 N 7 2.03 0.30 108.30 110.33 A A A O4' C1' N9 DA DA DA 3 3 3 N 7 2.37 0.30 108.30 110.67 A A A O4' C1' N9 DA DA DA 4 4 4 N 7 2.03 0.30 108.30 110.33 A A A O4' C1' N1 DT DT DT 5 5 5 N 7 2.41 0.30 108.30 110.71 A A A O4' C1' N1 DT DT DT 6 6 6 N 7 3.08 0.30 108.30 111.38 A A A O4' C1' N1 DT DT DT 7 7 7 N 7 2.57 0.30 108.30 110.87 A A A O4' C1' N9 DA DA DA 11 11 11 N 7 2.41 0.30 108.30 110.71 A A A O4' C1' N9 DA DA DA 12 12 12 N 7 2.18 0.30 108.30 110.48 A A A O4' C1' N9 DA DA DA 13 13 13 N 7 2.25 0.30 108.30 110.55 A A A O4' C1' N1 DT DT DT 14 14 14 N 7 3.01 0.30 108.30 111.31 A A A O4' C1' N1 DT DT DT 15 15 15 N 7 3.25 0.30 108.30 111.55 A A A O4' C1' N9 DA DA DA 16 16 16 N 7 3.01 0.30 108.30 111.31 A A A O4' C1' N9 DA DA DA 17 17 17 N 8 2.57 0.30 108.30 110.87 A A A O4' C1' N1 DT DT DT 1 1 1 N 8 2.63 0.30 108.30 110.93 A A A O4' C1' N1 DT DT DT 2 2 2 N 8 -3.60 0.60 122.90 119.30 A A A C6 C5 C7 DT DT DT 2 2 2 N 8 2.53 0.30 108.30 110.83 A A A O4' C1' N9 DA DA DA 3 3 3 N 8 2.79 0.30 108.30 111.09 A A A O4' C1' N9 DA DA DA 4 4 4 N 8 2.33 0.30 108.30 110.63 A A A O4' C1' N1 DT DT DT 5 5 5 N 8 -3.82 0.60 122.90 119.08 A A A C6 C5 C7 DT DT DT 5 5 5 N 8 2.76 0.30 108.30 111.06 A A A O4' C1' N1 DT DT DT 6 6 6 N 8 2.92 0.30 108.30 111.22 A A A O4' C1' N1 DT DT DT 7 7 7 N 8 2.46 0.30 108.30 110.76 A A A O4' C1' N9 DA DA DA 11 11 11 N 8 1.95 0.30 108.30 110.25 A A A O4' C1' N9 DA DA DA 12 12 12 N 8 2.24 0.30 108.30 110.54 A A A O4' C1' N9 DA DA DA 13 13 13 N 8 1.96 0.30 108.30 110.26 A A A O4' C1' N1 DT DT DT 14 14 14 N 8 3.03 0.30 108.30 111.33 A A A O4' C1' N1 DT DT DT 15 15 15 N 8 2.80 0.30 108.30 111.10 A A A O4' C1' N9 DA DA DA 16 16 16 N 8 2.76 0.30 108.30 111.06 A A A O4' C1' N9 DA DA DA 17 17 17 N 9 2.62 0.30 108.30 110.92 A A A O4' C1' N1 DT DT DT 1 1 1 N 9 2.76 0.30 108.30 111.06 A A A O4' C1' N1 DT DT DT 2 2 2 N 9 -3.65 0.60 122.90 119.25 A A A C6 C5 C7 DT DT DT 2 2 2 N 9 2.13 0.30 108.30 110.43 A A A O4' C1' N9 DA DA DA 3 3 3 N 9 2.47 0.30 108.30 110.77 A A A O4' C1' N9 DA DA DA 4 4 4 N 9 1.99 0.30 108.30 110.29 A A A O4' C1' N1 DT DT DT 5 5 5 N 9 -3.71 0.60 122.90 119.19 A A A C6 C5 C7 DT DT DT 5 5 5 N 9 2.46 0.30 108.30 110.76 A A A O4' C1' N1 DT DT DT 6 6 6 N 9 3.03 0.30 108.30 111.33 A A A O4' C1' N1 DT DT DT 7 7 7 N 9 2.38 0.30 108.30 110.68 A A A O4' C1' N9 DA DA DA 11 11 11 N 9 2.52 0.30 108.30 110.82 A A A O4' C1' N9 DA DA DA 12 12 12 N 9 2.36 0.30 108.30 110.66 A A A O4' C1' N9 DA DA DA 13 13 13 N 9 2.14 0.30 108.30 110.44 A A A O4' C1' N1 DT DT DT 14 14 14 N 9 2.53 0.30 108.30 110.83 A A A O4' C1' N1 DT DT DT 15 15 15 N 9 2.79 0.30 108.30 111.09 A A A O4' C1' N9 DA DA DA 16 16 16 N 9 2.35 0.30 108.30 110.65 A A A O4' C1' N9 DA DA DA 17 17 17 N 10 2.82 0.30 108.30 111.12 A A A O4' C1' N1 DT DT DT 1 1 1 N 10 2.34 0.30 108.30 110.64 A A A O4' C1' N1 DT DT DT 2 2 2 N 10 -4.01 0.60 122.90 118.89 A A A C6 C5 C7 DT DT DT 2 2 2 N 10 1.98 0.30 108.30 110.28 A A A O4' C1' N9 DA DA DA 3 3 3 N 10 2.17 0.30 108.30 110.47 A A A O4' C1' N9 DA DA DA 4 4 4 N 10 2.38 0.30 108.30 110.68 A A A O4' C1' N1 DT DT DT 5 5 5 N 10 2.37 0.30 108.30 110.67 A A A O4' C1' N1 DT DT DT 6 6 6 N 10 3.05 0.30 108.30 111.35 A A A O4' C1' N1 DT DT DT 7 7 7 N 10 2.76 0.30 108.30 111.06 A A A O4' C1' N9 DA DA DA 11 11 11 N 10 2.21 0.30 108.30 110.51 A A A O4' C1' N9 DA DA DA 12 12 12 N 10 2.36 0.30 108.30 110.66 A A A O4' C1' N9 DA DA DA 13 13 13 N 10 2.11 0.30 108.30 110.41 A A A O4' C1' N1 DT DT DT 14 14 14 N 10 2.37 0.30 108.30 110.67 A A A O4' C1' N1 DT DT DT 15 15 15 N 10 3.02 0.30 108.30 111.32 A A A O4' C1' N9 DA DA DA 16 16 16 N 10 3.06 0.30 108.30 111.36 A A A O4' C1' N9 DA DA DA 17 17 17 N 11 2.40 0.30 108.30 110.70 A A A O4' C1' N1 DT DT DT 1 1 1 N 11 2.69 0.30 108.30 110.99 A A A O4' C1' N1 DT DT DT 2 2 2 N 11 -3.89 0.60 122.90 119.01 A A A C6 C5 C7 DT DT DT 2 2 2 N 11 1.95 0.30 108.30 110.25 A A A O4' C1' N9 DA DA DA 3 3 3 N 11 2.58 0.30 108.30 110.88 A A A O4' C1' N9 DA DA DA 4 4 4 N 11 2.34 0.30 108.30 110.64 A A A O4' C1' N1 DT DT DT 5 5 5 N 11 2.75 0.30 108.30 111.05 A A A O4' C1' N1 DT DT DT 6 6 6 N 11 3.34 0.30 108.30 111.64 A A A O4' C1' N1 DT DT DT 7 7 7 N 11 2.71 0.30 108.30 111.01 A A A O4' C1' N9 DA DA DA 11 11 11 N 11 2.06 0.30 108.30 110.36 A A A O4' C1' N9 DA DA DA 12 12 12 N 11 2.10 0.30 108.30 110.40 A A A O4' C1' N9 DA DA DA 13 13 13 N 11 2.20 0.30 108.30 110.50 A A A O4' C1' N1 DT DT DT 14 14 14 N 11 2.41 0.30 108.30 110.71 A A A O4' C1' N1 DT DT DT 15 15 15 N 11 3.00 0.30 108.30 111.30 A A A O4' C1' N9 DA DA DA 16 16 16 N 11 2.85 0.30 108.30 111.15 A A A O4' C1' N9 DA DA DA 17 17 17 N 12 2.56 0.30 108.30 110.86 A A A O4' C1' N1 DT DT DT 1 1 1 N 12 2.66 0.30 108.30 110.96 A A A O4' C1' N1 DT DT DT 2 2 2 N 12 1.96 0.30 108.30 110.26 A A A O4' C1' N9 DA DA DA 3 3 3 N 12 2.39 0.30 108.30 110.69 A A A O4' C1' N9 DA DA DA 4 4 4 N 12 2.48 0.30 108.30 110.78 A A A O4' C1' N1 DT DT DT 5 5 5 N 12 2.63 0.30 108.30 110.93 A A A O4' C1' N1 DT DT DT 6 6 6 N 12 3.11 0.30 108.30 111.41 A A A O4' C1' N1 DT DT DT 7 7 7 N 12 2.52 0.30 108.30 110.82 A A A O4' C1' N9 DA DA DA 11 11 11 N 12 2.21 0.30 108.30 110.51 A A A O4' C1' N9 DA DA DA 12 12 12 N 12 2.23 0.30 108.30 110.53 A A A O4' C1' N9 DA DA DA 13 13 13 N 12 2.18 0.30 108.30 110.48 A A A O4' C1' N1 DT DT DT 14 14 14 N 12 2.43 0.30 108.30 110.73 A A A O4' C1' N1 DT DT DT 15 15 15 N 12 2.96 0.30 108.30 111.26 A A A O4' C1' N9 DA DA DA 16 16 16 N 12 2.56 0.30 108.30 110.86 A A A O4' C1' N9 DA DA DA 17 17 17 N 13 2.64 0.30 108.30 110.94 A A A O4' C1' N1 DT DT DT 1 1 1 N 13 2.68 0.30 108.30 110.98 A A A O4' C1' N1 DT DT DT 2 2 2 N 13 -3.70 0.60 122.90 119.20 A A A C6 C5 C7 DT DT DT 2 2 2 N 13 2.57 0.30 108.30 110.87 A A A O4' C1' N9 DA DA DA 3 3 3 N 13 2.33 0.30 108.30 110.63 A A A O4' C1' N9 DA DA DA 4 4 4 N 13 2.35 0.30 108.30 110.65 A A A O4' C1' N1 DT DT DT 5 5 5 N 13 2.73 0.30 108.30 111.03 A A A O4' C1' N1 DT DT DT 6 6 6 N 13 2.89 0.30 108.30 111.19 A A A O4' C1' N1 DT DT DT 7 7 7 N 13 2.60 0.30 108.30 110.90 A A A O4' C1' N9 DA DA DA 11 11 11 N 13 2.39 0.30 108.30 110.69 A A A O4' C1' N9 DA DA DA 12 12 12 N 13 2.12 0.30 108.30 110.42 A A A O4' C1' N9 DA DA DA 13 13 13 N 13 2.29 0.30 108.30 110.59 A A A O4' C1' N1 DT DT DT 14 14 14 N 13 2.57 0.30 108.30 110.87 A A A O4' C1' N1 DT DT DT 15 15 15 N 13 2.80 0.30 108.30 111.10 A A A O4' C1' N9 DA DA DA 16 16 16 N 13 2.43 0.30 108.30 110.73 A A A O4' C1' N9 DA DA DA 17 17 17 N 14 2.39 0.30 108.30 110.69 A A A O4' C1' N1 DT DT DT 1 1 1 N 14 2.67 0.30 108.30 110.97 A A A O4' C1' N1 DT DT DT 2 2 2 N 14 -3.61 0.60 122.90 119.29 A A A C6 C5 C7 DT DT DT 2 2 2 N 14 2.45 0.30 108.30 110.75 A A A O4' C1' N9 DA DA DA 3 3 3 N 14 2.43 0.30 108.30 110.73 A A A O4' C1' N9 DA DA DA 4 4 4 N 14 2.83 0.30 108.30 111.13 A A A O4' C1' N1 DT DT DT 5 5 5 N 14 2.65 0.30 108.30 110.95 A A A O4' C1' N1 DT DT DT 6 6 6 N 14 3.14 0.30 108.30 111.44 A A A O4' C1' N1 DT DT DT 7 7 7 N 14 2.33 0.30 108.30 110.63 A A A O4' C1' N9 DA DA DA 11 11 11 N 14 2.69 0.30 108.30 110.99 A A A O4' C1' N9 DA DA DA 12 12 12 N 14 2.10 0.30 108.30 110.40 A A A O4' C1' N9 DA DA DA 13 13 13 N 14 2.05 0.30 108.30 110.35 A A A O4' C1' N1 DT DT DT 14 14 14 N 14 2.54 0.30 108.30 110.84 A A A O4' C1' N1 DT DT DT 15 15 15 N 14 2.75 0.30 108.30 111.05 A A A O4' C1' N9 DA DA DA 16 16 16 N 14 2.16 0.30 108.30 110.46 A A A O4' C1' N9 DA DA DA 17 17 17 N 15 2.69 0.30 108.30 110.99 A A A O4' C1' N1 DT DT DT 1 1 1 N 15 -3.61 0.60 122.90 119.29 A A A C6 C5 C7 DT DT DT 1 1 1 N 15 2.91 0.30 108.30 111.21 A A A O4' C1' N1 DT DT DT 2 2 2 N 15 -4.04 0.60 122.90 118.86 A A A C6 C5 C7 DT DT DT 2 2 2 N 15 2.21 0.30 108.30 110.51 A A A O4' C1' N9 DA DA DA 3 3 3 N 15 2.40 0.30 108.30 110.70 A A A O4' C1' N9 DA DA DA 4 4 4 N 15 2.06 0.30 108.30 110.36 A A A O4' C1' N1 DT DT DT 5 5 5 N 15 -3.68 0.60 122.90 119.22 A A A C6 C5 C7 DT DT DT 5 5 5 N 15 2.67 0.30 108.30 110.97 A A A O4' C1' N1 DT DT DT 6 6 6 N 15 2.82 0.30 108.30 111.12 A A A O4' C1' N1 DT DT DT 7 7 7 N 15 2.26 0.30 108.30 110.56 A A A O4' C1' N9 DA DA DA 11 11 11 N 15 1.94 0.30 108.30 110.24 A A A O4' C1' N9 DA DA DA 12 12 12 N 15 2.47 0.30 108.30 110.77 A A A O4' C1' N9 DA DA DA 13 13 13 N 15 2.08 0.30 108.30 110.38 A A A O4' C1' N1 DT DT DT 14 14 14 N 15 2.77 0.30 108.30 111.07 A A A O4' C1' N1 DT DT DT 15 15 15 N 15 2.95 0.30 108.30 111.25 A A A O4' C1' N9 DA DA DA 16 16 16 N 15 2.48 0.30 108.30 110.78 A A A O4' C1' N9 DA DA DA 17 17 17 N 16 2.31 0.30 108.30 110.61 A A A O4' C1' N1 DT DT DT 1 1 1 N 16 2.46 0.30 108.30 110.76 A A A O4' C1' N1 DT DT DT 2 2 2 N 16 -3.67 0.60 122.90 119.23 A A A C6 C5 C7 DT DT DT 2 2 2 N 16 2.13 0.30 108.30 110.43 A A A O4' C1' N9 DA DA DA 3 3 3 N 16 2.52 0.30 108.30 110.82 A A A O4' C1' N9 DA DA DA 4 4 4 N 16 2.10 0.30 108.30 110.40 A A A O4' C1' N1 DT DT DT 5 5 5 N 16 2.49 0.30 108.30 110.79 A A A O4' C1' N1 DT DT DT 6 6 6 N 16 -3.74 0.60 122.90 119.16 A A A C6 C5 C7 DT DT DT 6 6 6 N 16 3.15 0.30 108.30 111.45 A A A O4' C1' N1 DT DT DT 7 7 7 N 16 2.32 0.30 108.30 110.62 A A A O4' C1' N9 DA DA DA 11 11 11 N 16 2.18 0.30 108.30 110.48 A A A O4' C1' N9 DA DA DA 12 12 12 N 16 2.08 0.30 108.30 110.38 A A A O4' C1' N9 DA DA DA 13 13 13 N 16 2.31 0.30 108.30 110.61 A A A O4' C1' N1 DT DT DT 14 14 14 N 16 2.52 0.30 108.30 110.82 A A A O4' C1' N1 DT DT DT 15 15 15 N 16 2.94 0.30 108.30 111.24 A A A O4' C1' N9 DA DA DA 16 16 16 N 16 2.37 0.30 108.30 110.67 A A A O4' C1' N9 DA DA DA 17 17 17 N 17 2.54 0.30 108.30 110.84 A A A O4' C1' N1 DT DT DT 1 1 1 N 17 -3.63 0.60 122.90 119.27 A A A C6 C5 C7 DT DT DT 1 1 1 N 17 2.53 0.30 108.30 110.83 A A A O4' C1' N1 DT DT DT 2 2 2 N 17 -3.68 0.60 122.90 119.22 A A A C6 C5 C7 DT DT DT 2 2 2 N 17 2.02 0.30 108.30 110.32 A A A O4' C1' N9 DA DA DA 3 3 3 N 17 2.51 0.30 108.30 110.81 A A A O4' C1' N9 DA DA DA 4 4 4 N 17 2.08 0.30 108.30 110.38 A A A O4' C1' N1 DT DT DT 5 5 5 N 17 2.90 0.30 108.30 111.20 A A A O4' C1' N1 DT DT DT 6 6 6 N 17 2.82 0.30 108.30 111.12 A A A O4' C1' N1 DT DT DT 7 7 7 N 17 2.41 0.30 108.30 110.71 A A A O4' C1' N9 DA DA DA 11 11 11 N 17 2.08 0.30 108.30 110.38 A A A O4' C1' N9 DA DA DA 12 12 12 N 17 2.05 0.30 108.30 110.35 A A A O4' C1' N9 DA DA DA 13 13 13 N 17 2.25 0.30 108.30 110.55 A A A O4' C1' N1 DT DT DT 14 14 14 N 17 2.57 0.30 108.30 110.87 A A A O4' C1' N1 DT DT DT 15 15 15 N 17 2.60 0.30 108.30 110.90 A A A O4' C1' N9 DA DA DA 16 16 16 N 17 2.56 0.30 108.30 110.86 A A A O4' C1' N9 DA DA DA 17 17 17 N 18 2.73 0.30 108.30 111.03 A A A O4' C1' N1 DT DT DT 1 1 1 N 18 2.66 0.30 108.30 110.96 A A A O4' C1' N1 DT DT DT 2 2 2 N 18 -3.78 0.60 122.90 119.12 A A A C6 C5 C7 DT DT DT 2 2 2 N 18 2.53 0.30 108.30 110.83 A A A O4' C1' N9 DA DA DA 3 3 3 N 18 2.67 0.30 108.30 110.97 A A A O4' C1' N9 DA DA DA 4 4 4 N 18 2.11 0.30 108.30 110.41 A A A O4' C1' N1 DT DT DT 5 5 5 N 18 2.48 0.30 108.30 110.78 A A A O4' C1' N1 DT DT DT 6 6 6 N 18 3.02 0.30 108.30 111.32 A A A O4' C1' N1 DT DT DT 7 7 7 N 18 2.51 0.30 108.30 110.81 A A A O4' C1' N9 DA DA DA 11 11 11 N 18 2.27 0.30 108.30 110.57 A A A O4' C1' N9 DA DA DA 12 12 12 N 18 2.63 0.30 108.30 110.93 A A A O4' C1' N9 DA DA DA 13 13 13 N 18 2.53 0.30 108.30 110.83 A A A O4' C1' N1 DT DT DT 14 14 14 N 18 2.81 0.30 108.30 111.11 A A A O4' C1' N1 DT DT DT 15 15 15 N 18 2.76 0.30 108.30 111.06 A A A O4' C1' N9 DA DA DA 16 16 16 N 18 2.80 0.30 108.30 111.10 A A A O4' C1' N9 DA DA DA 17 17 17 N 19 2.31 0.30 108.30 110.61 A A A O4' C1' N1 DT DT DT 1 1 1 N 19 2.60 0.30 108.30 110.90 A A A O4' C1' N1 DT DT DT 2 2 2 N 19 1.87 0.30 108.30 110.17 A A A O4' C1' N9 DA DA DA 3 3 3 N 19 2.55 0.30 108.30 110.85 A A A O4' C1' N9 DA DA DA 4 4 4 N 19 2.11 0.30 108.30 110.41 A A A O4' C1' N1 DT DT DT 5 5 5 N 19 -3.69 0.60 122.90 119.21 A A A C6 C5 C7 DT DT DT 5 5 5 N 19 2.55 0.30 108.30 110.85 A A A O4' C1' N1 DT DT DT 6 6 6 N 19 2.73 0.30 108.30 111.03 A A A O4' C1' N1 DT DT DT 7 7 7 N 19 2.94 0.30 108.30 111.24 A A A O4' C1' N9 DA DA DA 11 11 11 N 19 2.13 0.30 108.30 110.43 A A A O4' C1' N9 DA DA DA 13 13 13 N 19 2.16 0.30 108.30 110.46 A A A O4' C1' N1 DT DT DT 14 14 14 N 19 2.65 0.30 108.30 110.95 A A A O4' C1' N1 DT DT DT 15 15 15 N 19 2.42 0.30 108.30 110.72 A A A O4' C1' N9 DA DA DA 16 16 16 N 19 2.49 0.30 108.30 110.79 A A A O4' C1' N9 DA DA DA 17 17 17 N 20 2.52 0.30 108.30 110.82 A A A O4' C1' N1 DT DT DT 1 1 1 N 20 2.73 0.30 108.30 111.03 A A A O4' C1' N1 DT DT DT 2 2 2 N 20 -3.71 0.60 122.90 119.19 A A A C6 C5 C7 DT DT DT 2 2 2 N 20 2.27 0.30 108.30 110.57 A A A O4' C1' N9 DA DA DA 3 3 3 N 20 2.38 0.30 108.30 110.68 A A A O4' C1' N9 DA DA DA 4 4 4 N 20 2.05 0.30 108.30 110.35 A A A O4' C1' N1 DT DT DT 5 5 5 N 20 2.40 0.30 108.30 110.70 A A A O4' C1' N1 DT DT DT 6 6 6 N 20 2.89 0.30 108.30 111.19 A A A O4' C1' N1 DT DT DT 7 7 7 N 20 2.35 0.30 108.30 110.65 A A A O4' C1' N9 DA DA DA 11 11 11 N 20 2.06 0.30 108.30 110.36 A A A O4' C1' N9 DA DA DA 12 12 12 N 20 2.46 0.30 108.30 110.76 A A A O4' C1' N9 DA DA DA 13 13 13 N 20 2.21 0.30 108.30 110.51 A A A O4' C1' N1 DT DT DT 14 14 14 N 20 2.86 0.30 108.30 111.16 A A A O4' C1' N1 DT DT DT 15 15 15 N 20 2.91 0.30 108.30 111.21 A A A O4' C1' N9 DA DA DA 16 16 16 N 20 2.48 0.30 108.30 110.78 A A A O4' C1' N9 DA DA DA 17 17 17 N DIH-DNA-17-mer NMR solution structure of modified DNA containing imidazole nucleosides at acidic pH 1 N N covale 1.611 A DT 7 A O3' DT 7 1_555 A D33 8 A P D33 8 1_555 covale 1.610 A D33 8 A O3' D33 8 1_555 A D33 9 A P D33 9 1_555 covale 1.610 A D33 9 A O3' D33 9 1_555 A D33 10 A P D33 10 1_555 covale 1.612 A D33 10 A O3' D33 10 1_555 A DA 11 A P DA 11 1_555 hydrog WATSON-CRICK A DT 1 A N3 DT 1 1_555 A DA 17 A N1 DA 17 1_555 hydrog WATSON-CRICK A DT 1 A O4 DT 1 1_555 A DA 17 A N6 DA 17 1_555 hydrog WATSON-CRICK A DT 2 A N3 DT 2 1_555 A DA 16 A N1 DA 16 1_555 hydrog WATSON-CRICK A DT 2 A O4 DT 2 1_555 A DA 16 A N6 DA 16 1_555 hydrog WATSON-CRICK A DA 3 A N1 DA 3 1_555 A DT 15 A N3 DT 15 1_555 hydrog WATSON-CRICK A DA 3 A N6 DA 3 1_555 A DT 15 A O4 DT 15 1_555 hydrog WATSON-CRICK A DA 4 A N1 DA 4 1_555 A DT 14 A N3 DT 14 1_555 hydrog WATSON-CRICK A DA 4 A N6 DA 4 1_555 A DT 14 A O4 DT 14 1_555 hydrog WATSON-CRICK A DT 5 A N3 DT 5 1_555 A DA 13 A N1 DA 13 1_555 hydrog WATSON-CRICK A DT 5 A O4 DT 5 1_555 A DA 13 A N6 DA 13 1_555 hydrog WATSON-CRICK A DT 6 A N3 DT 6 1_555 A DA 12 A N1 DA 12 1_555 hydrog WATSON-CRICK A DT 6 A O4 DT 6 1_555 A DA 12 A N6 DA 12 1_555 hydrog WATSON-CRICK A DT 7 A N3 DT 7 1_555 A DA 11 A N1 DA 11 1_555 hydrog WATSON-CRICK A DT 7 A O4 DT 7 1_555 A DA 11 A N6 DA 11 1_555 DNA DNA 17-mer, hairpin, artificial nucleobase, imidazole nucleoside, shifted pKa, DNA 2K67 PDB 1 2K67 TTAATTTXXXAAATTAA 1 17 2K67 1 17 2K67 A 1 1 17 BINDING SITE FOR RESIDUE D33 A 8 Software 1 BINDING SITE FOR RESIDUE D33 A 9 Software 1 BINDING SITE FOR RESIDUE D33 A 10 Software 2 A DT 7 A DT 7 1 1_555 A DT 7 A DT 7 1 1_555 A DT 6 A DT 6 2 1_555 A DA 11 A DA 11 2 1_555