0.024328 0.000000 0.019978 0.000000 0.028585 0.000000 0.000000 0.000000 0.040277 0.00000 0.00000 0.00000 3.54356 2.42580 25.62398 1.50364 0.0 2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 4.90428 4.07044 12.99538 1.63651 0.0 2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 0.51345 0.48472 24.73122 6.32584 0.0 2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 9.41153 2.53737 2.59044 63.03566 0.0 2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 4.01032 2.96436 19.97189 1.75589 0.0 2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 4.49882 3.47563 15.80542 1.70748 0.0 2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 5.12366 3.84317 3.49406 27.47979 0.0 2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 9.51135 5.44231 1.42069 35.72801 0.0 2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 0000-0002-9116-5606 Harp, J.M. 0000-0003-4145-356X Egli, M. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 4 90.000 129.393 90.000 41.105 34.983 32.127 35702.221 C10 H14 N5 O7 P 347.221 y ADENOSINE-5'-MONOPHOSPHATE RNA linking C10 H13 F N5 O7 P 365.212 n (2~{R},3~{R},4~{S},5~{R})-2-(6-azanyl-2-fluoranyl-purin-9-yl)-5-[[oxidanyl-bis(oxidanylidene)-$l^{6}-phosphanyl]oxymethyl]oxolane-3,4-diol RNA linking C9 H14 N3 O8 P 323.197 y CYTIDINE-5'-MONOPHOSPHATE RNA linking C10 H14 N5 O8 P 363.221 y GUANOSINE-5'-MONOPHOSPHATE RNA linking H2 O 18.015 WATER non-polymer Mg 2 24.305 MAGNESIUM ION non-polymer C9 H13 N2 O9 P 324.181 y URIDINE-5'-MONOPHOSPHATE RNA linking N 1 N O N 2 N P N 3 N O N 4 N O N 5 N O N 6 N C N 7 R C N 8 N O N 9 S C N 10 N O N 11 R C N 12 N O N 13 R C Y 14 N N Y 15 N C Y 16 N N Y 17 N C Y 18 N C N 19 N N Y 20 N N Y 21 N C Y 22 N N Y 23 N C N 24 N H N 25 N H N 26 N H N 27 N H N 28 N H N 29 N H N 30 N H N 31 N H N 32 N H N 33 N H N 34 N H N 35 N H N 36 N H N 37 N H Y 38 N C Y 39 N C Y 40 N C Y 41 N C Y 42 N N Y 43 N N Y 44 N N N 45 R C N 46 R C N 47 S C N 48 R C N 49 N C Y 50 N C N 51 N F Y 52 N N N 53 N N N 54 N O N 55 N O N 56 N O N 57 N O N 58 N O N 59 N O N 60 N P N 61 N H N 62 N H N 63 N H N 64 N H N 65 N H N 66 N H N 67 N H N 68 N H N 69 N H N 70 N H N 71 N H N 72 N H N 73 N O N 74 N H N 75 N O N 76 N P N 77 N O N 78 N O N 79 N O N 80 N C N 81 R C N 82 N O N 83 S C N 84 N O N 85 R C N 86 N O N 87 R C N 88 N N N 89 N C N 90 N O N 91 N N N 92 N C N 93 N N N 94 N C N 95 N C N 96 N H N 97 N H N 98 N H N 99 N H N 100 N H N 101 N H N 102 N H N 103 N H N 104 N H N 105 N H N 106 N H N 107 N H N 108 N H N 109 N H N 110 N O N 111 N P N 112 N O N 113 N O N 114 N O N 115 N C N 116 R C N 117 N O N 118 S C N 119 N O N 120 R C N 121 N O N 122 R C Y 123 N N Y 124 N C Y 125 N N Y 126 N C N 127 N C N 128 N O N 129 N N N 130 N C N 131 N N N 132 N N Y 133 N C N 134 N H N 135 N H N 136 N H N 137 N H N 138 N H N 139 N H N 140 N H N 141 N H N 142 N H N 143 N H N 144 N H N 145 N H N 146 N H N 147 N H N 148 N O N 149 N H N 150 N H N 151 N MG N 152 N O N 153 N P N 154 N O N 155 N O N 156 N O N 157 N C N 158 R C N 159 N O N 160 S C N 161 N O N 162 R C N 163 N O N 164 R C N 165 N N N 166 N C N 167 N O N 168 N N N 169 N C N 170 N O N 171 N C N 172 N C N 173 N H N 174 N H N 175 N H N 176 N H N 177 N H N 178 N H N 179 N H N 180 N H N 181 N H N 182 N H N 183 N H N 184 N H N 185 N H N 1 N sing N 2 N sing N 3 N doub N 4 N sing N 5 N sing N 6 N sing N 7 N sing N 8 N sing N 9 N sing N 10 N sing N 11 N sing N 12 N sing N 13 N sing N 14 N sing N 15 N sing N 16 N sing N 17 N sing N 18 N sing N 19 N sing N 20 N sing N 21 N sing N 22 N sing N 23 N sing N 24 N sing Y 25 N sing Y 26 N sing Y 27 N doub N 28 N sing Y 29 N sing Y 30 N sing Y 31 N doub N 32 N sing Y 33 N doub N 34 N sing N 35 N sing Y 36 N sing Y 37 N doub N 38 N sing Y 39 N sing N 40 N sing Y 41 N doub Y 42 N doub Y 43 N sing Y 44 N sing N 45 N sing N 46 N sing N 47 N sing N 48 N sing N 49 N sing N 50 N sing N 51 N sing N 52 N sing N 53 N doub N 54 N sing N 55 N sing N 56 N sing Y 57 N sing Y 58 N doub Y 59 N sing N 60 N sing Y 61 N doub Y 62 N sing Y 63 N sing N 64 N sing N 65 N sing N 66 N sing N 67 N sing N 68 N sing N 69 N sing N 70 N sing N 71 N sing N 72 N sing N 73 N sing N 74 N sing N 75 N sing N 76 N sing N 77 N sing N 78 N sing N 79 N sing N 80 N sing N 81 N doub N 82 N sing N 83 N sing N 84 N sing N 85 N sing N 86 N sing N 87 N sing N 88 N sing N 89 N sing N 90 N sing N 91 N sing N 92 N sing N 93 N sing N 94 N sing N 95 N sing N 96 N sing N 97 N sing N 98 N sing N 99 N sing N 100 N sing N 101 N sing N 102 N sing N 103 N sing N 104 N sing N 105 N doub N 106 N sing N 107 N doub N 108 N sing N 109 N sing N 110 N sing N 111 N sing N 112 N doub N 113 N sing N 114 N sing N 115 N sing N 116 N sing N 117 N doub N 118 N sing N 119 N sing N 120 N sing N 121 N sing N 122 N sing N 123 N sing N 124 N sing N 125 N sing N 126 N sing N 127 N sing N 128 N sing N 129 N sing N 130 N sing N 131 N sing N 132 N sing N 133 N sing N 134 N sing N 135 N sing N 136 N sing N 137 N sing N 138 N sing Y 139 N sing Y 140 N sing Y 141 N doub N 142 N sing Y 143 N sing N 144 N sing Y 145 N doub N 146 N doub N 147 N sing N 148 N sing N 149 N sing N 150 N sing N 151 N doub N 152 N sing N 153 N sing N 154 N sing N 155 N sing N 156 N sing N 157 N sing N 158 N sing N 159 N doub N 160 N sing N 161 N sing N 162 N sing N 163 N sing N 164 N sing N 165 N sing N 166 N sing N 167 N sing N 168 N sing N 169 N sing N 170 N sing N 171 N sing N 172 N sing N 173 N sing N 174 N sing N 175 N sing N 176 N sing N 177 N sing N 178 N sing N 179 N sing N 180 N sing N 181 N sing N 182 N sing N 183 N doub N 184 N sing N 185 N sing N 186 N sing N 187 N doub N 188 N sing N 189 N doub N 190 N sing N 191 N sing US Org.Lett. 1523-7060 28 9133 9138 10.1021/acs.orglett.6c01203 42455745 A Postsynthetic Strategy for Oligonucleotides Containing 2-Fluoro-adenine and Isoguanine Nucleobases. 2026 0000-0003-2669-8112 0000-0003-2077-1294 0000-0003-4145-356X 0000-0002-7931-1172 10.2210/pdb9ydj/pdb pdb_00009ydj 100 1 N PIXEL 2022-08-15 Bruker PHOTON III SINGLE WAVELENGTH M x-ray 1 1.3412 1.0 1.3412 LIQUID ANODE BRUKER METALJET 3887.342 RNA 12-mer 1 syn polymer 24.305 MAGNESIUM ION 2 syn non-polymer 18.015 water 67 nat water no yes CGCG(A1CU1)(A1CU1)UUAGCG CGCGXXUUAGCG A polyribonucleotide n n n n n n n n n n n n 1 2.30 46.43 VAPOR DIFFUSION, SITTING DROP drops containing 300nl 1 mM RNA and 300nl 10% 2-methyl-2,4-pentanediol (MPD), 40 mM sodium cacodylate, pH 7.0, 12 mM spermine 4HCl, 80 mM potassium chloride, 20 mM magnesium chloride and reservoir containing 40% MPD 293 7.611 1 19 A 1 A 12 0.233 A_C1:G12_A 1 -16.666 0.136 -0.039 -0.110 -5.441 1 19 A 2 A 11 1.265 A_G2:C11_A 2 -17.275 -0.207 0.003 -0.128 -3.491 1 19 A 3 A 10 -3.131 A_C3:G10_A 3 -14.383 0.082 0.223 -0.170 2.347 1 8 A 4 A 9 -19.266 A_G4:A9_A 4 -7.676 -0.053 -0.353 1.526 4.197 1 20 A 5 A 8 -7.092 A_A1CU15:U8_A 5 -11.900 0.216 0.200 0.066 1.078 1 20 A 6 A 7 -3.616 A_A1CU16:U7_A 6 -24.256 0.117 -0.087 -0.007 -1.078 1 20 A 7 A 6 -3.616 A_U7:A1CU16_A 7 -24.256 -0.117 -0.087 -0.007 -4.197 1 20 A 8 A 5 -7.092 A_U8:A1CU15_A 8 -11.900 -0.216 0.200 0.066 -2.347 1 8 A 9 A 4 -19.266 A_A9:G4_A 9 -7.676 0.053 -0.353 1.526 3.491 1 19 A 10 A 3 -3.131 A_G10:C3_A 10 -14.383 -0.082 0.223 -0.170 5.441 1 19 A 11 A 2 1.265 A_C11:G2_A 11 -17.275 0.207 0.003 -0.128 -7.611 1 19 A 12 A 1 0.233 A_G12:C1_A 12 -16.666 -0.136 -0.039 -0.110 2.641 35.194 A A 1 2 21.780 A A 12 11 3.423 12.865 -0.413 -1.633 AA_C1G2:C11G12_AA 1 -3.105 5.257 32.684 -4.547 0.238 3.072 34.742 A A 2 3 5.628 A A 11 10 3.187 3.353 -0.464 -1.322 AA_G2C3:G10C11_AA 2 -2.282 3.829 34.512 -2.706 0.442 2.334 29.278 A A 3 4 21.286 A A 10 9 3.125 10.509 -0.934 -1.355 AA_C3G4:A9G10_AA 3 3.058 -6.193 27.197 -4.651 2.421 2.436 32.032 A A 4 5 18.721 A A 9 8 3.154 10.135 0.538 -1.536 AA_G4A1CU15:U8A9_AA 4 -3.953 7.301 30.174 -4.395 -1.604 2.848 37.028 A A 5 6 16.674 A A 8 7 3.291 10.448 0.053 -1.153 AA_A1CU15A1CU16:U7U8_AA 5 2.406 -3.840 35.494 -3.162 0.226 2.844 32.648 A A 6 7 16.134 A A 7 6 3.273 8.959 0.000 -1.158 AA_A1CU16U7:A1CU16U7_AA 6 0.000 0.000 31.427 -3.542 0.000 2.848 37.028 A A 7 8 16.674 A A 6 5 3.291 10.448 -0.053 -1.153 AA_U7U8:A1CU15A1CU16_AA 7 -2.406 3.840 35.494 -3.162 -0.226 2.436 32.032 A A 8 9 18.721 A A 5 4 3.154 10.135 -0.538 -1.536 AA_U8A9:G4A1CU15_AA 8 3.953 -7.301 30.174 -4.395 1.604 2.334 29.278 A A 9 10 21.286 A A 4 3 3.125 10.509 0.934 -1.355 AA_A9G10:C3G4_AA 9 -3.058 6.193 27.197 -4.651 -2.421 3.072 34.742 A A 10 11 5.628 A A 3 2 3.187 3.353 0.464 -1.322 AA_G10C11:G2C3_AA 10 2.282 -3.829 34.512 -2.706 -0.442 2.641 35.194 A A 11 12 21.780 A A 2 1 3.423 12.865 0.413 -1.633 AA_C11G12:C1G2_AA 11 3.105 -5.257 32.684 -4.547 -0.238 repository Initial release 1 0 2026-08-05 United States Other private martin.egli@vanderbilt.edu 0000-0003-4145-356X Martin Egli principal investigator/group leader N RCSB N RCSB 2025-09-22 REL REL A1CU1 A1CU1 SUBJECT OF INVESTIGATION MG MAGNESIUM ION HOH water 32630 synthetic construct sample 1 12 Y N 2Q1R PDB experimental model MG 1 2 MG MG 101 A MG 2 2 MG MG 102 A HOH 65 3 HOH HOH 201 A HOH 15 3 HOH HOH 202 A HOH 17 3 HOH HOH 203 A HOH 57 3 HOH HOH 204 A HOH 29 3 HOH HOH 205 A HOH 33 3 HOH HOH 206 A HOH 42 3 HOH HOH 207 A HOH 46 3 HOH HOH 208 A HOH 48 3 HOH HOH 209 A HOH 30 3 HOH HOH 210 A HOH 7 3 HOH HOH 211 A HOH 12 3 HOH HOH 212 A HOH 8 3 HOH HOH 213 A HOH 14 3 HOH HOH 214 A HOH 3 3 HOH HOH 215 A HOH 18 3 HOH HOH 216 A HOH 51 3 HOH HOH 217 A HOH 55 3 HOH HOH 218 A HOH 39 3 HOH HOH 219 A HOH 4 3 HOH HOH 220 A HOH 19 3 HOH HOH 221 A HOH 58 3 HOH HOH 222 A HOH 43 3 HOH HOH 223 A HOH 9 3 HOH HOH 224 A HOH 1 3 HOH HOH 225 A HOH 56 3 HOH HOH 226 A HOH 41 3 HOH HOH 227 A HOH 26 3 HOH HOH 228 A HOH 21 3 HOH HOH 229 A HOH 2 3 HOH HOH 230 A HOH 10 3 HOH HOH 231 A HOH 24 3 HOH HOH 232 A HOH 23 3 HOH HOH 233 A HOH 67 3 HOH HOH 234 A HOH 5 3 HOH HOH 235 A HOH 16 3 HOH HOH 236 A HOH 45 3 HOH HOH 237 A HOH 6 3 HOH HOH 238 A HOH 25 3 HOH HOH 239 A HOH 20 3 HOH HOH 240 A HOH 53 3 HOH HOH 241 A HOH 44 3 HOH HOH 242 A HOH 13 3 HOH HOH 243 A HOH 47 3 HOH HOH 244 A HOH 22 3 HOH HOH 245 A HOH 35 3 HOH HOH 246 A HOH 11 3 HOH HOH 247 A HOH 32 3 HOH HOH 248 A HOH 63 3 HOH HOH 249 A HOH 49 3 HOH HOH 250 A HOH 38 3 HOH HOH 251 A HOH 27 3 HOH HOH 252 A HOH 36 3 HOH HOH 253 A HOH 66 3 HOH HOH 254 A HOH 61 3 HOH HOH 255 A HOH 31 3 HOH HOH 256 A HOH 37 3 HOH HOH 257 A HOH 28 3 HOH HOH 258 A HOH 34 3 HOH HOH 259 A HOH 52 3 HOH HOH 260 A HOH 62 3 HOH HOH 261 A HOH 59 3 HOH HOH 262 A HOH 54 3 HOH HOH 263 A HOH 64 3 HOH HOH 264 A HOH 40 3 HOH HOH 265 A HOH 60 3 HOH HOH 266 A HOH 50 3 HOH HOH 267 A C 1 n 1 C 1 A G 2 n 2 G 2 A C 3 n 3 C 3 A G 4 n 4 G 4 A 2FR 5 n 5 A1CU1 5 A 2FR 6 n 6 A1CU1 6 A U 7 n 7 U 7 A U 8 n 8 U 8 A A 9 n 9 A 9 A G 10 n 10 G 10 A C 11 n 11 C 11 A G 12 n 12 G 12 A author_and_software_defined_assembly PISA 2 dimeric 3440 -28 4130 A HOH 230 D O HOH 1_555 A MG 101 B MG MG 1_555 A HOH 231 D O HOH 2_656 89.2 A HOH 230 D O HOH 1_555 A MG 101 B MG MG 1_555 A HOH 235 D O HOH 1_555 84.8 A HOH 231 D O HOH 2_656 A MG 101 B MG MG 1_555 A HOH 235 D O HOH 1_555 171.4 A HOH 230 D O HOH 1_555 A MG 101 B MG MG 1_555 A HOH 258 D O HOH 1_555 94.5 A HOH 231 D O HOH 2_656 A MG 101 B MG MG 1_555 A HOH 258 D O HOH 1_555 81.9 A HOH 235 D O HOH 1_555 A MG 101 B MG MG 1_555 A HOH 258 D O HOH 1_555 92.5 A HOH 230 D O HOH 1_555 A MG 101 B MG MG 1_555 A HOH 265 D O HOH 1_555 85.4 A HOH 231 D O HOH 2_656 A MG 101 B MG MG 1_555 A HOH 265 D O HOH 1_555 95.6 A HOH 235 D O HOH 1_555 A MG 101 B MG MG 1_555 A HOH 265 D O HOH 1_555 90.0 A HOH 258 D O HOH 1_555 A MG 101 B MG MG 1_555 A HOH 265 D O HOH 1_555 177.5 A HOH 204 D O HOH 1_555 A MG 102 C MG MG 1_555 A HOH 218 D O HOH 1_555 80.9 A HOH 204 D O HOH 1_555 A MG 102 C MG MG 1_555 A HOH 226 D O HOH 1_555 82.2 A HOH 218 D O HOH 1_555 A MG 102 C MG MG 1_555 A HOH 226 D O HOH 1_555 92.6 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 -1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 -1.0000000000 2_656 -x+1,y,-z+1 crystal symmetry operation 20.7160459751 0.0000000000 24.8281026817 1 A HOH 225 D HOH 1 -3.95 0.60 119.90 115.95 A A A N1 C6 O6 G G G 2 2 2 N 1 -3.98 0.50 111.90 107.92 A A A C2 N3 C4 G G G 12 12 12 N 1 3.68 0.50 128.60 132.28 A A A N3 C4 C5 G G G 12 12 12 N 17.58 0.1903 0.1762 0.1769 1.30 17.49 831 16116 16947 4.90 99.43 0.1654 1 FREE R-VALUE 0.03 MOLECULAR REPLACEMENT 31.9009 0.9000 1.1100 GeoStd + Monomer Library + CDL v1.2 FLAT BULK SOLVENT MODEL 1.30 17.49 67 326 2 257 0 0.0142 287 1.6610 447 0.0570 57 0.0262 12 21.4679 158 0.3328 0.2999 1.38 159 2679 99.40 0.2978 0.2418 1.49 136 2709 99.86 0.2336 0.2259 1.64 104 2695 99.68 0.2151 0.1773 1.87 150 2685 99.30 0.1539 0.1768 2.36 121 2707 99.86 0.1635 0.1437 17.49 161 2641 98.45 13.43 1.30 17.49 9YDJ 21611 0.999 1 6.45 5.1 99.43 1.30 1.38 3524 .187 1 refinement PHENIX 1.21.1_5286 data reduction PROTEUM PLUS data scaling PROTEUM PLUS phasing MOLREP 5 monoclinic C 1 2 1 C 2y x,y,z -x,y,-z x+1/2,y+1/2,z -x+1/2,y+1/2,-z N Dickerson dodecamer RNA duplex containing 2-F-6-aminopurine/U base pairing 1 N N 2 N N 2 N N 3 N N covale 1.606 both A G 4 A O3' G 4 1_555 A A1CU1 5 A P A1CU1 5 1_555 covale 1.600 one A A1CU1 5 A O3' A1CU1 5 1_555 A A1CU1 6 A P A1CU1 6 1_555 covale 1.611 one A A1CU1 6 A O3' A1CU1 6 1_555 A U 7 A P U 7 1_555 metalc 2.121 A MG 101 B MG MG 1_555 A HOH 230 D O HOH 1_555 metalc 2.409 A MG 101 B MG MG 1_555 A HOH 231 D O HOH 2_656 metalc 2.195 A MG 101 B MG MG 1_555 A HOH 235 D O HOH 1_555 metalc 2.053 A MG 101 B MG MG 1_555 A HOH 258 D O HOH 1_555 metalc 2.327 A MG 101 B MG MG 1_555 A HOH 265 D O HOH 1_555 metalc 2.282 A MG 102 C MG MG 1_555 A HOH 204 D O HOH 1_555 metalc 2.004 A MG 102 C MG MG 1_555 A HOH 218 D O HOH 1_555 metalc 2.221 A MG 102 C MG MG 1_555 A HOH 226 D O HOH 1_555 hydrog WATSON-CRICK A C 1 A N3 C 1 1_555 A G 12 A N1 G 12 2_656 hydrog WATSON-CRICK A C 1 A N4 C 1 1_555 A G 12 A O6 G 12 2_656 hydrog WATSON-CRICK A C 1 A O2 C 1 1_555 A G 12 A N2 G 12 2_656 hydrog WATSON-CRICK A G 2 A N1 G 2 1_555 A C 11 A N3 C 11 2_656 hydrog WATSON-CRICK A G 2 A N2 G 2 1_555 A C 11 A O2 C 11 2_656 hydrog WATSON-CRICK A G 2 A O6 G 2 1_555 A C 11 A N4 C 11 2_656 hydrog WATSON-CRICK A C 3 A N3 C 3 1_555 A G 10 A N1 G 10 2_656 hydrog WATSON-CRICK A C 3 A N4 C 3 1_555 A G 10 A O6 G 10 2_656 hydrog WATSON-CRICK A C 3 A O2 C 3 1_555 A G 10 A N2 G 10 2_656 hydrog TYPE_8_PAIR A G 4 A N1 G 4 1_555 A A 9 A N1 A 9 2_656 hydrog TYPE_8_PAIR A G 4 A O6 G 4 1_555 A A 9 A N6 A 9 2_656 hydrog WATSON-CRICK A A1CU1 5 A N1 A1CU1 5 1_555 A U 8 A N3 U 8 2_656 hydrog WATSON-CRICK A A1CU1 5 A N6 A1CU1 5 1_555 A U 8 A O4 U 8 2_656 hydrog WATSON-CRICK A A1CU1 6 A N1 A1CU1 6 1_555 A U 7 A N3 U 7 2_656 hydrog WATSON-CRICK A A1CU1 6 A N6 A1CU1 6 1_555 A U 7 A O4 U 7 2_656 hydrog WATSON-CRICK A U 7 A N3 U 7 1_555 A A1CU1 6 A N1 A1CU1 6 2_656 hydrog WATSON-CRICK A U 7 A O4 U 7 1_555 A A1CU1 6 A N6 A1CU1 6 2_656 hydrog WATSON-CRICK A U 8 A N3 U 8 1_555 A A1CU1 5 A N1 A1CU1 5 2_656 hydrog WATSON-CRICK A U 8 A O4 U 8 1_555 A A1CU1 5 A N6 A1CU1 5 2_656 hydrog TYPE_8_PAIR A A 9 A N1 A 9 1_555 A G 4 A N1 G 4 2_656 hydrog TYPE_8_PAIR A A 9 A N6 A 9 1_555 A G 4 A O6 G 4 2_656 hydrog WATSON-CRICK A G 10 A N1 G 10 1_555 A C 3 A N3 C 3 2_656 hydrog WATSON-CRICK A G 10 A N2 G 10 1_555 A C 3 A O2 C 3 2_656 hydrog WATSON-CRICK A G 10 A O6 G 10 1_555 A C 3 A N4 C 3 2_656 hydrog WATSON-CRICK A C 11 A N3 C 11 1_555 A G 2 A N1 G 2 2_656 hydrog WATSON-CRICK A C 11 A N4 C 11 1_555 A G 2 A O6 G 2 2_656 hydrog WATSON-CRICK A C 11 A O2 C 11 1_555 A G 2 A N2 G 2 2_656 hydrog WATSON-CRICK A G 12 A N1 G 12 1_555 A C 1 A N3 C 1 2_656 hydrog WATSON-CRICK A G 12 A N2 G 12 1_555 A C 1 A O2 C 1 2_656 hydrog WATSON-CRICK A G 12 A O6 G 12 1_555 A C 1 A N4 C 1 2_656 RNA Dickerson dodecamer, RNA oligonucleotide, 2-F-6-aminopurine, RNA 9YDJ PDB 1 1 9YDJ 1 12 9YDJ 1 12 9YDJ A 1 1 12 5 C 1 2 1 C 2y