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 10.2210/pdb2k68/pdb pdb_00002k68 DID_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 -7.459 1 20 A 1 A 17 9.745 A_DT1:DA17_A 1 -16.575 -0.096 0.085 -0.163 -3.733 1 20 A 2 A 16 -4.027 A_DT2:DA16_A 2 -11.549 0.534 0.302 -0.336 2.423 1 20 A 3 A 15 -2.636 A_DA3:DT15_A 3 -11.860 0.547 0.380 -0.087 4.326 1 20 A 4 A 14 -2.731 A_DA4:DT14_A 4 -9.260 0.308 0.526 -0.132 -4.941 1 20 A 5 A 13 -3.464 A_DT5:DA13_A 5 -10.836 0.108 0.618 -0.129 -3.876 1 20 A 6 A 12 -0.462 A_DT6:DA12_A 6 -10.608 -0.288 0.515 -0.163 -1.043 1 20 A 7 A 11 -1.698 A_DT7:DA11_A 7 -2.701 0.114 1.044 -0.513 3.409 37.337 A A 1 2 -14.498 A A 17 16 3.546 -9.182 -0.553 0.282 AA_DT1DT2:DA16DA17_AA 1 -3.102 4.898 36.101 1.753 0.420 2.984 32.503 A A 2 3 1.468 A A 16 15 3.045 0.819 -0.175 -0.297 AA_DT2DA3:DT15DA16_AA 2 4.577 -8.205 32.178 -0.663 1.054 3.053 32.691 A A 3 4 30.428 A A 15 14 3.294 16.389 -0.163 0.372 AA_DA3DA4:DT14DT15_AA 3 -0.114 0.211 28.384 -2.299 0.269 4.195 31.786 A A 4 5 16.748 A A 14 13 4.123 9.051 -0.126 0.838 AA_DA4DT5:DA13DT14_AA 4 -0.702 1.299 30.494 -0.623 0.063 3.377 32.320 A A 5 6 18.225 A A 13 12 3.488 9.973 0.329 0.120 AA_DT5DT6:DA12DA13_AA 5 3.022 -5.522 30.636 -1.689 -0.014 3.866 33.165 A A 6 7 5.625 A A 12 11 3.856 3.203 0.130 0.545 AA_DT6DT7:DA11DA12_AA 6 -2.810 4.936 32.897 0.317 -0.787 database_2 pdbx_nmr_software pdbx_nmr_spectrometer pdbx_struct_assembly pdbx_struct_oper_list struct_conn struct_site repository Initial release Version format compliance Data collection Database references Derived calculations 1 0 2009-07-07 1 1 2011-07-13 1 2 2022-03-16 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_nmr_software.name _pdbx_nmr_spectrometer.model _struct_conn.pdbx_leaving_atom_flag _struct_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id NMR solution structure of modified DNA containing imidazole nucleosides at acidic pH NMR solution structure of modified DNA containing imidazole nucleosides at basic pH BMRB Y RCSB 2008-07-04 REL REL 28 354 147 20 12 185 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 7.2 ambient 298 K 120 mM 7.2 ambient 278 K torsion angle dynamics, simulated annealing 1 lowest energy 0.5 mM DID DNA 17-mer, 120 mM sodium perchlorate, 100% D2O 100% D2O 0.5 mM DID 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 2.36 0.30 108.30 110.66 A A A O4' C1' N1 DT DT DT 1 1 1 N 1 -3.68 0.60 122.90 119.22 A A A C6 C5 C7 DT DT DT 1 1 1 N 1 2.86 0.30 108.30 111.16 A A A O4' C1' N1 DT DT DT 2 2 2 N 1 -3.65 0.60 122.90 119.25 A A A C6 C5 C7 DT DT DT 2 2 2 N 1 2.02 0.30 108.30 110.32 A A A O4' C1' N9 DA DA DA 3 3 3 N 1 2.35 0.30 108.30 110.65 A A A O4' C1' N9 DA DA DA 4 4 4 N 1 2.16 0.30 108.30 110.46 A A A O4' C1' N1 DT DT DT 5 5 5 N 1 -3.64 0.60 122.90 119.26 A A A C6 C5 C7 DT DT DT 5 5 5 N 1 2.21 0.30 108.30 110.51 A A A O4' C1' N1 DT DT DT 6 6 6 N 1 2.48 0.30 108.30 110.78 A A A O4' C1' N1 DT DT DT 7 7 7 N 1 2.34 0.30 108.30 110.64 A A A O4' C1' N9 DA DA DA 11 11 11 N 1 2.09 0.30 108.30 110.39 A A A O4' C1' N9 DA DA DA 12 12 12 N 1 1.96 0.30 108.30 110.26 A A A O4' C1' N9 DA DA DA 13 13 13 N 1 2.07 0.30 108.30 110.37 A A A O4' C1' N1 DT DT DT 14 14 14 N 1 2.62 0.30 108.30 110.92 A A A O4' C1' N1 DT DT DT 15 15 15 N 1 2.94 0.30 108.30 111.24 A A A O4' C1' N9 DA DA DA 16 16 16 N 1 2.72 0.30 108.30 111.02 A A A O4' C1' N9 DA DA DA 17 17 17 N 2 2.40 0.30 108.30 110.70 A A A O4' C1' N1 DT DT DT 1 1 1 N 2 -3.75 0.60 122.90 119.15 A A A C6 C5 C7 DT DT DT 1 1 1 N 2 2.71 0.30 108.30 111.01 A A A O4' C1' N1 DT DT DT 2 2 2 N 2 -3.79 0.60 122.90 119.11 A A A C6 C5 C7 DT DT DT 2 2 2 N 2 2.00 0.30 108.30 110.30 A A A O4' C1' N9 DA DA DA 3 3 3 N 2 2.13 0.30 108.30 110.43 A A A O4' C1' N9 DA DA DA 4 4 4 N 2 1.82 0.30 108.30 110.12 A A A O4' C1' N1 DT DT DT 5 5 5 N 2 2.45 0.30 108.30 110.75 A A A O4' C1' N1 DT DT DT 6 6 6 N 2 2.49 0.30 108.30 110.79 A A A O4' C1' N1 DT DT DT 7 7 7 N 2 2.37 0.30 108.30 110.67 A A A O4' C1' N9 DA DA DA 11 11 11 N 2 2.07 0.30 108.30 110.37 A A A O4' C1' N9 DA DA DA 12 12 12 N 2 2.27 0.30 108.30 110.57 A A A O4' C1' N9 DA DA DA 13 13 13 N 2 1.90 0.30 108.30 110.20 A A A O4' C1' N1 DT DT DT 14 14 14 N 2 2.75 0.30 108.30 111.05 A A A O4' C1' N1 DT DT DT 15 15 15 N 2 2.05 0.30 108.30 110.35 A A A O4' C1' N9 DA DA DA 16 16 16 N 2 2.70 0.30 108.30 111.00 A A A O4' C1' N9 DA DA DA 17 17 17 N 3 2.28 0.30 108.30 110.58 A A A O4' C1' N1 DT DT DT 1 1 1 N 3 2.64 0.30 108.30 110.94 A A A O4' C1' N1 DT DT DT 2 2 2 N 3 -3.66 0.60 122.90 119.24 A A A C6 C5 C7 DT DT DT 2 2 2 N 3 2.14 0.30 108.30 110.44 A A A O4' C1' N9 DA DA DA 3 3 3 N 3 2.19 0.30 108.30 110.49 A A A O4' C1' N9 DA DA DA 4 4 4 N 3 2.34 0.30 108.30 110.64 A A A O4' C1' N1 DT DT DT 5 5 5 N 3 2.56 0.30 108.30 110.86 A A A O4' C1' N1 DT DT DT 6 6 6 N 3 2.53 0.30 108.30 110.83 A A A O4' C1' N1 DT DT DT 7 7 7 N 3 2.65 0.30 108.30 110.95 A A A O4' C1' N9 DA DA DA 11 11 11 N 3 2.31 0.30 108.30 110.61 A A A O4' C1' N9 DA DA DA 12 12 12 N 3 2.36 0.30 108.30 110.66 A A A O4' C1' N9 DA DA DA 13 13 13 N 3 2.16 0.30 108.30 110.46 A A A O4' C1' N1 DT DT DT 14 14 14 N 3 2.36 0.30 108.30 110.66 A A A O4' C1' N1 DT DT DT 15 15 15 N 3 2.64 0.30 108.30 110.94 A A A O4' C1' N9 DA DA DA 16 16 16 N 3 2.67 0.30 108.30 110.97 A A A O4' C1' N9 DA DA DA 17 17 17 N 4 2.45 0.30 108.30 110.75 A A A O4' C1' N1 DT DT DT 1 1 1 N 4 2.60 0.30 108.30 110.90 A A A O4' C1' N1 DT DT DT 2 2 2 N 4 1.95 0.30 108.30 110.25 A A A O4' C1' N9 DA DA DA 3 3 3 N 4 2.20 0.30 108.30 110.50 A A A O4' C1' N9 DA DA DA 4 4 4 N 4 2.49 0.30 108.30 110.79 A A A O4' C1' N1 DT DT DT 5 5 5 N 4 -3.60 0.60 122.90 119.30 A A A C6 C5 C7 DT DT DT 5 5 5 N 4 2.75 0.30 108.30 111.05 A A A O4' C1' N1 DT DT DT 6 6 6 N 4 2.78 0.30 108.30 111.08 A A A O4' C1' N1 DT DT DT 7 7 7 N 4 2.33 0.30 108.30 110.63 A A A O4' C1' N9 DA DA DA 11 11 11 N 4 2.27 0.30 108.30 110.57 A A A O4' C1' N9 DA DA DA 12 12 12 N 4 2.48 0.30 108.30 110.78 A A A O4' C1' N9 DA DA DA 13 13 13 N 4 2.42 0.30 108.30 110.72 A A A O4' C1' N1 DT DT DT 14 14 14 N 4 2.77 0.30 108.30 111.07 A A A O4' C1' N1 DT DT DT 15 15 15 N 4 2.38 0.30 108.30 110.68 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 2.39 0.30 108.30 110.69 A A A O4' C1' N1 DT DT DT 1 1 1 N 5 2.45 0.30 108.30 110.75 A A A O4' C1' N1 DT DT DT 2 2 2 N 5 2.11 0.30 108.30 110.41 A A A O4' C1' N9 DA DA DA 4 4 4 N 5 2.18 0.30 108.30 110.48 A A A O4' C1' N1 DT DT DT 5 5 5 N 5 2.79 0.30 108.30 111.09 A A A O4' C1' N1 DT DT DT 6 6 6 N 5 2.38 0.30 108.30 110.68 A A A O4' C1' N1 DT DT DT 7 7 7 N 5 2.45 0.30 108.30 110.75 A A A O4' C1' N9 DA DA DA 11 11 11 N 5 2.03 0.30 108.30 110.33 A A A O4' C1' N9 DA DA DA 12 12 12 N 5 2.24 0.30 108.30 110.54 A A A O4' C1' N9 DA DA DA 13 13 13 N 5 2.49 0.30 108.30 110.79 A A A O4' C1' N1 DT DT DT 14 14 14 N 5 2.41 0.30 108.30 110.71 A A A O4' C1' N1 DT DT DT 15 15 15 N 5 2.04 0.30 108.30 110.34 A A A O4' C1' N9 DA DA DA 16 16 16 N 5 2.68 0.30 108.30 110.98 A A A O4' C1' N9 DA DA DA 17 17 17 N 6 2.49 0.30 108.30 110.79 A A A O4' C1' N1 DT DT DT 1 1 1 N 6 2.74 0.30 108.30 111.04 A A A O4' C1' N1 DT DT DT 2 2 2 N 6 -3.76 0.60 122.90 119.14 A A A C6 C5 C7 DT DT DT 2 2 2 N 6 2.02 0.30 108.30 110.32 A A A O4' C1' N9 DA DA DA 3 3 3 N 6 2.18 0.30 108.30 110.48 A A A O4' C1' N9 DA DA DA 4 4 4 N 6 2.07 0.30 108.30 110.37 A A A O4' C1' N1 DT DT DT 5 5 5 N 6 2.25 0.30 108.30 110.55 A A A O4' C1' N1 DT DT DT 6 6 6 N 6 2.96 0.30 108.30 111.26 A A A O4' C1' N1 DT DT DT 7 7 7 N 6 2.43 0.30 108.30 110.73 A A A O4' C1' N9 DA DA DA 11 11 11 N 6 2.34 0.30 108.30 110.64 A A A O4' C1' N9 DA DA DA 12 12 12 N 6 2.68 0.30 108.30 110.98 A A A O4' C1' N9 DA DA DA 13 13 13 N 6 2.02 0.30 108.30 110.32 A A A O4' C1' N1 DT DT DT 14 14 14 N 6 2.42 0.30 108.30 110.72 A A A O4' C1' N1 DT DT DT 15 15 15 N 6 2.41 0.30 108.30 110.71 A A A O4' C1' N9 DA DA DA 16 16 16 N 6 2.59 0.30 108.30 110.89 A A A O4' C1' N9 DA DA DA 17 17 17 N 7 2.44 0.30 108.30 110.74 A A A O4' C1' N1 DT DT DT 1 1 1 N 7 2.62 0.30 108.30 110.92 A A A O4' C1' N1 DT DT DT 2 2 2 N 7 -3.67 0.60 122.90 119.23 A A A C6 C5 C7 DT DT DT 2 2 2 N 7 2.45 0.30 108.30 110.75 A A A O4' C1' N9 DA DA DA 3 3 3 N 7 2.02 0.30 108.30 110.32 A A A O4' C1' N9 DA DA DA 4 4 4 N 7 2.30 0.30 108.30 110.60 A A A O4' C1' N1 DT DT DT 5 5 5 N 7 2.44 0.30 108.30 110.74 A A A O4' C1' N1 DT DT DT 6 6 6 N 7 2.70 0.30 108.30 111.00 A A A O4' C1' N1 DT DT DT 7 7 7 N 7 2.81 0.30 108.30 111.11 A A A O4' C1' N9 DA DA DA 11 11 11 N 7 2.22 0.30 108.30 110.52 A A A O4' C1' N9 DA DA DA 12 12 12 N 7 2.52 0.30 108.30 110.82 A A A O4' C1' N9 DA DA DA 13 13 13 N 7 1.89 0.30 108.30 110.19 A A A O4' C1' N1 DT DT DT 14 14 14 N 7 2.57 0.30 108.30 110.87 A A A O4' C1' N1 DT DT DT 15 15 15 N 7 2.15 0.30 108.30 110.45 A A A O4' C1' N9 DA DA DA 16 16 16 N 7 2.79 0.30 108.30 111.09 A A A O4' C1' N9 DA DA DA 17 17 17 N 8 2.61 0.30 108.30 110.91 A A A O4' C1' N1 DT DT DT 1 1 1 N 8 2.51 0.30 108.30 110.81 A A A O4' C1' N1 DT DT DT 2 2 2 N 8 -3.63 0.60 122.90 119.27 A A A C6 C5 C7 DT DT DT 2 2 2 N 8 1.91 0.30 108.30 110.21 A A A O4' C1' N9 DA DA DA 3 3 3 N 8 2.21 0.30 108.30 110.51 A A A O4' C1' N9 DA DA DA 4 4 4 N 8 2.44 0.30 108.30 110.74 A A A O4' C1' N1 DT DT DT 5 5 5 N 8 -3.67 0.60 122.90 119.23 A A A C6 C5 C7 DT DT DT 5 5 5 N 8 2.38 0.30 108.30 110.68 A A A O4' C1' N1 DT DT DT 6 6 6 N 8 2.62 0.30 108.30 110.92 A A A O4' C1' N1 DT DT DT 7 7 7 N 8 2.42 0.30 108.30 110.72 A A A O4' C1' N9 DA DA DA 11 11 11 N 8 2.08 0.30 108.30 110.38 A A A O4' C1' N9 DA DA DA 12 12 12 N 8 1.95 0.30 108.30 110.25 A A A O4' C1' N9 DA DA DA 13 13 13 N 8 2.45 0.30 108.30 110.75 A A A O4' C1' N1 DT DT DT 14 14 14 N 8 2.80 0.30 108.30 111.10 A A A O4' C1' N1 DT DT DT 15 15 15 N 8 2.36 0.30 108.30 110.66 A A A O4' C1' N9 DA DA DA 16 16 16 N 8 2.97 0.30 108.30 111.27 A A A O4' C1' N9 DA DA DA 17 17 17 N 9 2.51 0.30 108.30 110.81 A A A O4' C1' N1 DT DT DT 1 1 1 N 9 2.55 0.30 108.30 110.85 A A A O4' C1' N1 DT DT DT 2 2 2 N 9 -3.74 0.60 122.90 119.16 A A A C6 C5 C7 DT DT DT 2 2 2 N 9 2.39 0.30 108.30 110.69 A A A O4' C1' N9 DA DA DA 3 3 3 N 9 2.27 0.30 108.30 110.57 A A A O4' C1' N9 DA DA DA 4 4 4 N 9 2.17 0.30 108.30 110.47 A A A O4' C1' N1 DT DT DT 5 5 5 N 9 2.22 0.30 108.30 110.52 A A A O4' C1' N1 DT DT DT 6 6 6 N 9 2.95 0.30 108.30 111.25 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 2.11 0.30 108.30 110.41 A A A O4' C1' N9 DA DA DA 12 12 12 N 9 2.01 0.30 108.30 110.31 A A A O4' C1' N9 DA DA DA 13 13 13 N 9 2.00 0.30 108.30 110.30 A A A O4' C1' N1 DT DT DT 14 14 14 N 9 2.70 0.30 108.30 111.00 A A A O4' C1' N1 DT DT DT 15 15 15 N 9 2.11 0.30 108.30 110.41 A A A O4' C1' N9 DA DA DA 16 16 16 N 9 2.56 0.30 108.30 110.86 A A A O4' C1' N9 DA DA DA 17 17 17 N 10 2.65 0.30 108.30 110.95 A A A O4' C1' N1 DT DT DT 1 1 1 N 10 2.49 0.30 108.30 110.79 A A A O4' C1' N1 DT DT DT 2 2 2 N 10 -3.60 0.60 122.90 119.30 A A A C6 C5 C7 DT DT DT 2 2 2 N 10 2.00 0.30 108.30 110.30 A A A O4' C1' N9 DA DA DA 3 3 3 N 10 2.19 0.30 108.30 110.49 A A A O4' C1' N9 DA DA DA 4 4 4 N 10 2.17 0.30 108.30 110.47 A A A O4' C1' N1 DT DT DT 5 5 5 N 10 2.45 0.30 108.30 110.75 A A A O4' C1' N1 DT DT DT 7 7 7 N 10 2.58 0.30 108.30 110.88 A A A O4' C1' N9 DA DA DA 11 11 11 N 10 2.08 0.30 108.30 110.38 A A A O4' C1' N9 DA DA DA 13 13 13 N 10 2.25 0.30 108.30 110.55 A A A O4' C1' N1 DT DT DT 14 14 14 N 10 2.76 0.30 108.30 111.06 A A A O4' C1' N1 DT DT DT 15 15 15 N 10 2.31 0.30 108.30 110.61 A A A O4' C1' N9 DA DA DA 16 16 16 N 10 2.67 0.30 108.30 110.97 A A A O4' C1' N9 DA DA DA 17 17 17 N 11 2.58 0.30 108.30 110.88 A A A O4' C1' N1 DT DT DT 1 1 1 N 11 2.56 0.30 108.30 110.86 A A A O4' C1' N1 DT DT DT 2 2 2 N 11 2.12 0.30 108.30 110.42 A A A O4' C1' N9 DA DA DA 3 3 3 N 11 2.39 0.30 108.30 110.69 A A A O4' C1' N9 DA DA DA 4 4 4 N 11 2.16 0.30 108.30 110.46 A A A O4' C1' N1 DT DT DT 5 5 5 N 11 2.50 0.30 108.30 110.80 A A A O4' C1' N1 DT DT DT 6 6 6 N 11 2.67 0.30 108.30 110.97 A A A O4' C1' N1 DT DT DT 7 7 7 N 11 2.42 0.30 108.30 110.72 A A A O4' C1' N9 DA DA DA 11 11 11 N 11 2.17 0.30 108.30 110.47 A A A O4' C1' N9 DA DA DA 12 12 12 N 11 2.41 0.30 108.30 110.71 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 2.86 0.30 108.30 111.16 A A A O4' C1' N1 DT DT DT 15 15 15 N 11 2.08 0.30 108.30 110.38 A A A O4' C1' N9 DA DA DA 16 16 16 N 11 2.67 0.30 108.30 110.97 A A A O4' C1' N9 DA DA DA 17 17 17 N 12 2.42 0.30 108.30 110.72 A A A O4' C1' N1 DT DT DT 1 1 1 N 12 2.44 0.30 108.30 110.74 A A A O4' C1' N1 DT DT DT 2 2 2 N 12 -3.61 0.60 122.90 119.29 A A A C6 C5 C7 DT DT DT 2 2 2 N 12 2.35 0.30 108.30 110.65 A A A O4' C1' N9 DA DA DA 3 3 3 N 12 2.23 0.30 108.30 110.53 A A A O4' C1' N9 DA DA DA 4 4 4 N 12 2.43 0.30 108.30 110.73 A A A O4' C1' N1 DT DT DT 5 5 5 N 12 2.18 0.30 108.30 110.48 A A A O4' C1' N1 DT DT DT 6 6 6 N 12 2.71 0.30 108.30 111.01 A A A O4' C1' N1 DT DT DT 7 7 7 N 12 2.20 0.30 108.30 110.50 A A A O4' C1' N9 DA DA DA 11 11 11 N 12 2.16 0.30 108.30 110.46 A A A O4' C1' N9 DA DA DA 12 12 12 N 12 2.02 0.30 108.30 110.32 A A A O4' C1' N9 DA DA DA 13 13 13 N 12 2.10 0.30 108.30 110.40 A A A O4' C1' N1 DT DT DT 14 14 14 N 12 2.82 0.30 108.30 111.12 A A A O4' C1' N1 DT DT DT 15 15 15 N 12 2.32 0.30 108.30 110.62 A A A O4' C1' N9 DA DA DA 16 16 16 N 12 2.77 0.30 108.30 111.07 A A A O4' C1' N9 DA DA DA 17 17 17 N 13 2.26 0.30 108.30 110.56 A A A O4' C1' N1 DT DT DT 1 1 1 N 13 2.38 0.30 108.30 110.68 A A A O4' C1' N1 DT DT DT 2 2 2 N 13 2.16 0.30 108.30 110.46 A A A O4' C1' N9 DA DA DA 3 3 3 N 13 2.46 0.30 108.30 110.76 A A A O4' C1' N9 DA DA DA 4 4 4 N 13 2.40 0.30 108.30 110.70 A A A O4' C1' N1 DT DT DT 5 5 5 N 13 2.55 0.30 108.30 110.85 A A A O4' C1' N1 DT DT DT 6 6 6 N 13 2.32 0.30 108.30 110.62 A A A O4' C1' N1 DT DT DT 7 7 7 N 13 2.48 0.30 108.30 110.78 A A A O4' C1' N9 DA DA DA 11 11 11 N 13 1.97 0.30 108.30 110.27 A A A O4' C1' N9 DA DA DA 12 12 12 N 13 2.34 0.30 108.30 110.64 A A A O4' C1' N9 DA DA DA 13 13 13 N 13 2.34 0.30 108.30 110.64 A A A O4' C1' N1 DT DT DT 14 14 14 N 13 2.58 0.30 108.30 110.88 A A A O4' C1' N1 DT DT DT 15 15 15 N 13 2.61 0.30 108.30 110.91 A A A O4' C1' N9 DA DA DA 16 16 16 N 13 2.84 0.30 108.30 111.14 A A A O4' C1' N9 DA DA DA 17 17 17 N 14 2.70 0.30 108.30 111.00 A A A O4' C1' N1 DT DT DT 1 1 1 N 14 2.53 0.30 108.30 110.83 A A A O4' C1' N1 DT DT DT 2 2 2 N 14 2.27 0.30 108.30 110.57 A A A O4' C1' N9 DA DA DA 3 3 3 N 14 2.22 0.30 108.30 110.52 A A A O4' C1' N9 DA DA DA 4 4 4 N 14 2.42 0.30 108.30 110.72 A A A O4' C1' N1 DT DT DT 5 5 5 N 14 2.55 0.30 108.30 110.85 A A A O4' C1' N1 DT DT DT 6 6 6 N 14 2.54 0.30 108.30 110.84 A A A O4' C1' N1 DT DT DT 7 7 7 N 14 2.52 0.30 108.30 110.82 A A A O4' C1' N9 DA DA DA 11 11 11 N 14 2.36 0.30 108.30 110.66 A A A O4' C1' N9 DA DA DA 12 12 12 N 14 2.32 0.30 108.30 110.62 A A A O4' C1' N9 DA DA DA 13 13 13 N 14 2.03 0.30 108.30 110.33 A A A O4' C1' N1 DT DT DT 14 14 14 N 14 2.63 0.30 108.30 110.93 A A A O4' C1' N1 DT DT DT 15 15 15 N 14 2.00 0.30 108.30 110.30 A A A O4' C1' N9 DA DA DA 16 16 16 N 14 2.62 0.30 108.30 110.92 A A A O4' C1' N9 DA DA DA 17 17 17 N 15 2.53 0.30 108.30 110.83 A A A O4' C1' N1 DT DT DT 1 1 1 N 15 2.09 0.30 108.30 110.39 A A A O4' C1' N1 DT DT DT 2 2 2 N 15 2.43 0.30 108.30 110.73 A A A O4' C1' N9 DA DA DA 3 3 3 N 15 2.31 0.30 108.30 110.61 A A A O4' C1' N9 DA DA DA 4 4 4 N 15 2.44 0.30 108.30 110.74 A A A O4' C1' N1 DT DT DT 5 5 5 N 15 2.23 0.30 108.30 110.53 A A A O4' C1' N1 DT DT DT 6 6 6 N 15 2.59 0.30 108.30 110.89 A A A O4' C1' N1 DT DT DT 7 7 7 N 15 2.38 0.30 108.30 110.68 A A A O4' C1' N9 DA DA DA 11 11 11 N 15 2.23 0.30 108.30 110.53 A A A O4' C1' N9 DA DA DA 12 12 12 N 15 2.21 0.30 108.30 110.51 A A A O4' C1' N9 DA DA DA 13 13 13 N 15 2.16 0.30 108.30 110.46 A A A O4' C1' N1 DT DT DT 14 14 14 N 15 2.67 0.30 108.30 110.97 A A A O4' C1' N1 DT DT DT 15 15 15 N 15 2.81 0.30 108.30 111.11 A A A O4' C1' N9 DA DA DA 16 16 16 N 15 2.52 0.30 108.30 110.82 A A A O4' C1' N9 DA DA DA 17 17 17 N 16 2.46 0.30 108.30 110.76 A A A O4' C1' N1 DT DT DT 1 1 1 N 16 -3.65 0.60 122.90 119.25 A A A C6 C5 C7 DT DT DT 1 1 1 N 16 2.56 0.30 108.30 110.86 A A A O4' C1' N1 DT DT DT 2 2 2 N 16 2.20 0.30 108.30 110.50 A A A O4' C1' N9 DA DA DA 3 3 3 N 16 2.42 0.30 108.30 110.72 A A A O4' C1' N9 DA DA DA 4 4 4 N 16 2.60 0.30 108.30 110.90 A A A O4' C1' N1 DT DT DT 5 5 5 N 16 -3.63 0.60 122.90 119.27 A A A C6 C5 C7 DT DT DT 5 5 5 N 16 2.51 0.30 108.30 110.81 A A A O4' C1' N1 DT DT DT 6 6 6 N 16 2.57 0.30 108.30 110.87 A A A O4' C1' N1 DT DT DT 7 7 7 N 16 2.51 0.30 108.30 110.81 A A A O4' C1' N9 DA DA DA 11 11 11 N 16 2.61 0.30 108.30 110.91 A A A O4' C1' N9 DA DA DA 12 12 12 N 16 2.40 0.30 108.30 110.70 A A A O4' C1' N9 DA DA DA 13 13 13 N 16 2.46 0.30 108.30 110.76 A A A O4' C1' N1 DT DT DT 14 14 14 N 16 -3.65 0.60 122.90 119.25 A A A C6 C5 C7 DT DT DT 14 14 14 N 16 2.61 0.30 108.30 110.91 A A A O4' C1' N1 DT DT DT 15 15 15 N 16 2.08 0.30 108.30 110.38 A A A O4' C1' N9 DA DA DA 16 16 16 N 16 2.88 0.30 108.30 111.18 A A A O4' C1' N9 DA DA DA 17 17 17 N 17 2.44 0.30 108.30 110.74 A A A O4' C1' N1 DT DT DT 1 1 1 N 17 2.35 0.30 108.30 110.65 A A A O4' C1' N1 DT DT DT 2 2 2 N 17 2.25 0.30 108.30 110.55 A A A O4' C1' N9 DA DA DA 3 3 3 N 17 2.14 0.30 108.30 110.44 A A A O4' C1' N9 DA DA DA 4 4 4 N 17 2.51 0.30 108.30 110.81 A A A O4' C1' N1 DT DT DT 5 5 5 N 17 2.51 0.30 108.30 110.81 A A A O4' C1' N1 DT DT DT 6 6 6 N 17 2.80 0.30 108.30 111.10 A A A O4' C1' N1 DT DT DT 7 7 7 N 17 2.49 0.30 108.30 110.79 A A A O4' C1' N9 DA DA DA 11 11 11 N 17 2.45 0.30 108.30 110.75 A A A O4' C1' N9 DA DA DA 12 12 12 N 17 1.99 0.30 108.30 110.29 A A A O4' C1' N9 DA DA DA 13 13 13 N 17 2.40 0.30 108.30 110.70 A A A O4' C1' N1 DT DT DT 14 14 14 N 17 2.73 0.30 108.30 111.03 A A A O4' C1' N1 DT DT DT 15 15 15 N 17 2.17 0.30 108.30 110.47 A A A O4' C1' N9 DA DA DA 16 16 16 N 17 2.70 0.30 108.30 111.00 A A A O4' C1' N9 DA DA DA 17 17 17 N 18 2.33 0.30 108.30 110.63 A A A O4' C1' N1 DT DT DT 1 1 1 N 18 2.69 0.30 108.30 110.99 A A A O4' C1' N1 DT DT DT 2 2 2 N 18 -3.71 0.60 122.90 119.19 A A A C6 C5 C7 DT DT DT 2 2 2 N 18 2.22 0.30 108.30 110.52 A A A O4' C1' N9 DA DA DA 3 3 3 N 18 2.15 0.30 108.30 110.45 A A A O4' C1' N9 DA DA DA 4 4 4 N 18 2.34 0.30 108.30 110.64 A A A O4' C1' N1 DT DT DT 5 5 5 N 18 2.34 0.30 108.30 110.64 A A A O4' C1' N1 DT DT DT 6 6 6 N 18 2.71 0.30 108.30 111.01 A A A O4' C1' N1 DT DT DT 7 7 7 N 18 -3.61 0.60 122.90 119.29 A A A C6 C5 C7 DT DT DT 7 7 7 N 18 2.26 0.30 108.30 110.56 A A A O4' C1' N9 DA DA DA 11 11 11 N 18 2.36 0.30 108.30 110.66 A A A O4' C1' N9 DA DA DA 12 12 12 N 18 2.32 0.30 108.30 110.62 A A A O4' C1' N9 DA DA DA 13 13 13 N 18 1.95 0.30 108.30 110.25 A A A O4' C1' N1 DT DT DT 14 14 14 N 18 2.87 0.30 108.30 111.17 A A A O4' C1' N1 DT DT DT 15 15 15 N 18 2.45 0.30 108.30 110.75 A A A O4' C1' N9 DA DA DA 16 16 16 N 18 2.79 0.30 108.30 111.09 A A A O4' C1' N9 DA DA DA 17 17 17 N 19 2.40 0.30 108.30 110.70 A A A O4' C1' N1 DT DT DT 1 1 1 N 19 2.65 0.30 108.30 110.95 A A A O4' C1' N1 DT DT DT 2 2 2 N 19 -3.86 0.60 122.90 119.04 A A A C6 C5 C7 DT DT DT 2 2 2 N 19 1.91 0.30 108.30 110.21 A A A O4' C1' N9 DA DA DA 3 3 3 N 19 2.69 0.30 108.30 110.99 A A A O4' C1' N9 DA DA DA 4 4 4 N 19 1.95 0.30 108.30 110.25 A A A O4' C1' N1 DT DT DT 5 5 5 N 19 -3.66 0.60 122.90 119.24 A A A C6 C5 C7 DT DT DT 5 5 5 N 19 2.03 0.30 108.30 110.33 A A A O4' C1' N1 DT DT DT 6 6 6 N 19 2.40 0.30 108.30 110.70 A A A O4' C1' N1 DT DT DT 7 7 7 N 19 2.26 0.30 108.30 110.56 A A A O4' C1' N9 DA DA DA 11 11 11 N 19 2.30 0.30 108.30 110.60 A A A O4' C1' N9 DA DA DA 12 12 12 N 19 2.26 0.30 108.30 110.56 A A A O4' C1' N9 DA DA DA 13 13 13 N 19 2.38 0.30 108.30 110.68 A A A O4' C1' N1 DT DT DT 14 14 14 N 19 2.68 0.30 108.30 110.98 A A A O4' C1' N1 DT DT DT 15 15 15 N 19 2.28 0.30 108.30 110.58 A A A O4' C1' N9 DA DA DA 16 16 16 N 19 2.72 0.30 108.30 111.02 A A A O4' C1' N9 DA DA DA 17 17 17 N 20 2.63 0.30 108.30 110.93 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 2.32 0.30 108.30 110.62 A A A O4' C1' N9 DA DA DA 3 3 3 N 20 2.47 0.30 108.30 110.77 A A A O4' C1' N9 DA DA DA 4 4 4 N 20 2.11 0.30 108.30 110.41 A A A O4' C1' N1 DT DT DT 5 5 5 N 20 2.72 0.30 108.30 111.02 A A A O4' C1' N1 DT DT DT 6 6 6 N 20 2.55 0.30 108.30 110.85 A A A O4' C1' N1 DT DT DT 7 7 7 N 20 2.57 0.30 108.30 110.87 A A A O4' C1' N9 DA DA DA 11 11 11 N 20 2.09 0.30 108.30 110.39 A A A O4' C1' N9 DA DA DA 12 12 12 N 20 2.64 0.30 108.30 110.94 A A A O4' C1' N9 DA DA DA 13 13 13 N 20 2.16 0.30 108.30 110.46 A A A O4' C1' N1 DT DT DT 14 14 14 N 20 2.81 0.30 108.30 111.11 A A A O4' C1' N1 DT DT DT 15 15 15 N 20 2.69 0.30 108.30 110.99 A A A O4' C1' N9 DA DA DA 16 16 16 N 20 3.05 0.30 108.30 111.35 A A A O4' C1' N9 DA DA DA 17 17 17 N NMR solution structure of modified DNA containing imidazole nucleosides at neutral pH 1 N N covale 1.609 both A DT 7 A O3' DT 7 1_555 A D33 8 A P D33 8 1_555 covale 1.610 both A D33 8 A O3' D33 8 1_555 A D33 9 A P D33 9 1_555 covale 1.609 both A D33 9 A O3' D33 9 1_555 A D33 10 A P D33 10 1_555 covale 1.611 both 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 2K68 PDB 1 2K68 TTAATTTXXXAAATTAA 1 17 2K68 1 17 2K68 A 1 1 17 BINDING SITE FOR RESIDUE D33 A 8 A D33 8 Software 1 BINDING SITE FOR RESIDUE D33 A 9 A D33 9 Software 1 BINDING SITE FOR RESIDUE D33 A 10 A D33 10 Software 1 A DT 7 A DT 7 1 1_555 A DT 7 A DT 7 1 1_555 A DA 11 A DA 11 1 1_555