0.009282 0.000000 0.000000 0.000000 0.009282 0.000000 0.000000 0.000000 0.021101 0.00000 0.00000 0.00000 11.00365 0.01072 19.74734 17.36848 10.46572 2.59260 3.48182 0.37122 21.22664 173.83427 -5.18349695206 5-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 0.71379 0.23954 2.65751 1.07808 1.49091 -4.24107 14.78076 0.77678 42.08684 -0.00029 4.29798316956 5-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 0.91299 0.21729 11.89378 3.27748 1.85809 0.85893 0.00016 10.23272 30.34469 0.65606 -11.8049020767 5-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 1.14276 0.39024 2.96043 2.50882 0.63785 0.72284 14.18226 5.93686 0.11273 34.95848 0.0270140003413 5-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 0.67695 0.63076 3.10693 3.23514 1.14889 0.78398 19.86808 6.96025 0.17004 65.69351 0.0461359992623 5-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. 5.72971 1.98117 1.95054 4.14693 1.49456 1.52204 0.90814 27.04495 0.07128 67.52019 0.155232995749 5-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31. Li, M. Huang, L. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 24 90.000 90.000 90.000 107.730 107.730 47.390 549996.630 C10 H14 N5 O7 P 347.221 y ADENOSINE-5'-MONOPHOSPHATE RNA linking Ba 2 137.327 BARIUM ION non-polymer 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 C10 H16 N5 O14 P3 523.180 n GUANOSINE-5'-TRIPHOSPHATE non-polymer H2 O 18.015 WATER non-polymer C9 H13 N2 O9 P 324.181 y URIDINE-5'-MONOPHOSPHATE RNA linking C5 H4 N4 O2 152.111 XANTHINE non-polymer 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 N 38 N BA N 39 N O N 40 N P N 41 N O N 42 N O N 43 N O N 44 N C N 45 R C N 46 N O N 47 S C N 48 N O N 49 R C N 50 N O N 51 R C N 52 N N N 53 N C N 54 N O N 55 N N N 56 N C N 57 N N N 58 N C N 59 N C N 60 N H 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 H N 74 N O N 75 N P N 76 N O N 77 N O N 78 N O N 79 N C N 80 R C N 81 N O N 82 S C N 83 N O N 84 R C N 85 N O N 86 R C Y 87 N N Y 88 N C Y 89 N N Y 90 N C N 91 N C N 92 N O N 93 N N N 94 N C N 95 N N N 96 N N Y 97 N C 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 H N 111 N H N 112 N P N 113 N O N 114 N O N 115 N O N 116 N O N 117 N P N 118 N O N 119 N O N 120 N O N 121 N P N 122 N O N 123 N O N 124 N O N 125 N C N 126 R C N 127 N O N 128 S C N 129 N O N 130 R C N 131 N O N 132 R C Y 133 N N Y 134 N C Y 135 N N Y 136 N C N 137 N C N 138 N O N 139 N N N 140 N C N 141 N N N 142 N N Y 143 N C N 144 N H N 145 N H N 146 N H N 147 N H N 148 N H N 149 N H N 150 N H N 151 N H N 152 N H N 153 N H N 154 N H N 155 N H N 156 N H N 157 N H N 158 N H N 159 N H N 160 N O N 161 N H N 162 N H N 163 N O N 164 N P N 165 N O N 166 N O N 167 N O N 168 N C N 169 R C N 170 N O N 171 S C N 172 N O N 173 R C N 174 N O N 175 R C N 176 N N N 177 N C N 178 N O N 179 N N N 180 N C N 181 N O N 182 N C N 183 N C N 184 N H N 185 N H N 186 N H N 187 N H N 188 N H N 189 N H N 190 N H N 191 N H N 192 N H N 193 N H N 194 N H N 195 N H N 196 N H Y 197 N N Y 198 N C Y 199 N N Y 200 N C N 201 N O Y 202 N N Y 203 N C N 204 N O Y 205 N C Y 206 N N Y 207 N C N 208 N H N 209 N H N 210 N H N 211 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 N 41 N sing N 42 N doub N 43 N sing N 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 sing N 54 N sing N 55 N sing N 56 N sing N 57 N sing N 58 N sing N 59 N sing N 60 N sing N 61 N sing N 62 N sing N 63 N sing N 64 N sing N 65 N sing N 66 N doub N 67 N sing N 68 N doub N 69 N sing N 70 N sing N 71 N sing N 72 N sing N 73 N doub N 74 N sing N 75 N sing N 76 N sing N 77 N sing N 78 N doub N 79 N sing N 80 N sing N 81 N sing 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 Y 100 N sing Y 101 N sing Y 102 N doub N 103 N sing Y 104 N sing N 105 N sing Y 106 N doub 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 doub N 117 N sing N 118 N sing N 119 N sing N 120 N sing N 121 N sing N 122 N sing N 123 N doub N 124 N sing N 125 N sing N 126 N sing N 127 N sing N 128 N doub 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 N 139 N sing N 140 N sing N 141 N sing N 142 N sing N 143 N sing N 144 N sing N 145 N sing N 146 N sing N 147 N sing N 148 N sing N 149 N sing Y 150 N sing Y 151 N sing Y 152 N doub N 153 N sing Y 154 N sing N 155 N sing Y 156 N doub N 157 N doub N 158 N sing N 159 N sing N 160 N sing N 161 N sing N 162 N doub 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 doub 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 sing N 184 N sing N 185 N sing N 186 N sing N 187 N sing N 188 N sing N 189 N sing N 190 N sing N 191 N sing N 192 N sing N 193 N sing N 194 N doub N 195 N sing N 196 N sing N 197 N sing N 198 N doub N 199 N sing N 200 N doub N 201 N sing N 202 N sing Y 203 N sing Y 204 N sing N 205 N sing Y 206 N sing Y 207 N doub Y 208 N sing N 209 N sing N 210 N doub Y 211 N sing Y 212 N sing N 213 N sing N 214 N doub Y 215 N sing Y 216 N sing Y 217 N doub N 218 N sing To Be Published 0353 Crystal structure of xanthine/guanine RNA aptamer 10.2210/pdb9m6c/pdb pdb_00009m6c 100 1 N PIXEL 2022-12-18 DECTRIS PILATUS3 6M SINGLE WAVELENGTH M x-ray 1 0.97915 1.0 BL18U1 SSRF 0.97915 SYNCHROTRON SSRF BEAMLINE BL18U1 10249.092 RNA (32-MER) 3 syn polymer 523.180 GUANOSINE-5'-TRIPHOSPHATE 3 syn non-polymer 152.111 XANTHINE 3 syn non-polymer 137.327 BARIUM ION 5 syn non-polymer 18.015 water 5 nat water no no GGCACGUGUAUUACCCUAGUGGUCGACGUGCC GGCACGUGUAUUACCCUAGUGGUCGACGUGCC A,B,C polyribonucleotide n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n 1 2.24 44.99 VAPOR DIFFUSION, HANGING DROP 7.2 0.08 M Potassium chloride 0.02 M Barium chloride dehydrate 32% v/v (+/-)-2-Methyl-2,4-pentanediol 0.012 M Spermine tetrahydrochloride 291 -7.896 1 19 A 2 A 31 0.733 A_G2:C31_A 1 -2.598 -0.180 -0.553 -0.183 0.794 1 19 A 3 A 30 3.925 A_C3:G30_A 2 -2.107 0.226 -0.275 -0.128 -5.031 1 20 A 4 A 29 5.345 A_A4:U29_A 3 -7.012 -0.042 0.118 -0.140 1.923 1 19 A 5 A 28 2.581 A_C5:G28_A 4 -6.245 0.234 0.153 -0.189 -4.849 1 19 A 6 A 27 2.835 A_G6:C27_A 5 -9.791 -0.234 -0.434 -0.146 3.855 1 20 A 7 A 26 0.810 A_U7:A26_A 6 -10.255 0.004 -0.280 -0.126 -23.626 2 3 A 8 A 25 -176.522 A_G8:G25_A 7 3.050 1.054 -0.344 1.511 2.680 1 20 A 13 A 23 -2.754 A_A13:U23_A 8 0.631 0.110 -0.099 0.028 1.528 1 19 A 14 A 22 3.506 A_C14:G22_A 9 -3.826 0.202 -0.081 -0.106 1.156 1 19 A 15 A 21 -1.282 A_C15:G21_A 10 0.893 0.110 0.026 -0.135 2.527 1 19 A 16 A 19 2.653 A_C16:G19_A 11 -2.772 0.205 0.323 -0.164 -14.361 1 19 B 2 B 31 3.131 B_G2:C31_B 12 -6.478 -0.232 -0.995 -0.290 -1.333 1 19 B 3 B 30 2.654 B_C3:G30_B 13 -2.718 0.179 -0.583 -0.184 -4.060 1 20 B 4 B 29 3.003 B_A4:U29_B 14 -6.503 -0.090 0.205 -0.181 0.314 1 19 B 5 B 28 4.738 B_C5:G28_B 15 -6.508 0.229 0.125 -0.094 -6.743 1 19 B 6 B 27 3.410 B_G6:C27_B 16 -8.716 -0.230 -0.196 -0.117 4.131 1 20 B 7 B 26 1.765 B_U7:A26_B 17 -7.261 0.012 -0.153 -0.108 -21.112 2 3 B 8 B 25 -173.854 B_G8:G25_B 18 2.189 1.173 -0.388 1.170 2.199 1 20 B 13 B 23 -1.743 B_A13:U23_B 19 1.758 0.070 0.124 0.006 -0.154 1 19 B 14 B 22 2.250 B_C14:G22_B 20 0.213 0.183 0.134 -0.127 0.128 1 19 B 15 B 21 1.651 B_C15:G21_B 21 3.185 0.182 0.134 -0.114 5.527 1 19 B 16 B 19 4.071 B_C16:G19_B 22 0.226 0.165 0.267 -0.111 -3.504 1 19 C 2 C 31 -4.055 C_G2:C31_C 23 4.020 -0.178 -0.779 -0.190 4.588 1 19 C 3 C 30 0.018 C_C3:G30_C 24 0.962 0.150 -0.521 -0.127 -3.916 1 20 C 4 C 29 1.890 C_A4:U29_C 25 -4.678 0.007 0.300 -0.116 1.994 1 19 C 5 C 28 0.574 C_C5:G28_C 26 -3.731 0.188 0.340 -0.193 -3.545 1 19 C 6 C 27 0.815 C_G6:C27_C 27 -11.241 -0.210 -0.042 -0.154 1.819 1 20 C 7 C 26 1.470 C_U7:A26_C 28 -13.103 -0.007 0.157 -0.124 -18.967 2 3 C 8 C 25 -170.870 C_G8:G25_C 29 2.248 1.167 -0.271 1.088 -1.854 1 20 C 13 C 23 -0.927 C_A13:U23_C 30 -1.001 0.077 -0.118 -0.023 -0.822 1 19 C 14 C 22 2.094 C_C14:G22_C 31 -5.546 0.172 0.021 -0.135 -2.773 1 19 C 15 C 21 -0.155 C_C15:G21_C 32 1.734 0.202 0.120 -0.162 2.971 1 19 C 16 C 19 5.373 C_C16:G19_C 33 3.149 0.157 0.486 -0.164 2.827 34.623 A A 2 3 7.436 A A 31 30 3.017 4.414 0.795 -1.146 AA_G2C3:G30C31_AA 1 -1.076 1.812 34.333 -2.535 -1.484 2.095 35.919 A A 3 4 27.449 A A 30 29 3.036 16.325 0.130 -1.371 AA_C3A4:U29G30_AA 2 -2.882 4.846 31.978 -4.167 -0.554 2.860 32.580 A A 4 5 7.035 A A 29 28 3.002 3.936 -0.320 -1.123 AA_A4C5:G28U29_AA 3 -1.448 2.588 32.317 -2.619 0.343 1.944 35.532 A A 5 6 28.762 A A 28 27 3.052 16.861 0.085 -1.633 AA_C5G6:C27G28_AA 4 3.237 -5.522 31.227 -4.689 0.247 3.015 33.182 A A 6 7 5.663 A A 27 26 3.153 3.229 -0.514 -1.134 AA_G6U7:A26C27_AA 5 0.991 -1.738 33.015 -2.498 1.058 0.667 -178.887 A A 7 8 78.438 A A 26 25 -0.846 -156.378 3.501 -0.290 AA_U7G8:G25A26_AA 6 -86.328 -43.301 -71.914 0.105 1.773 -3.695 -161.471 A A 8 13 14.710 A A 25 23 -1.139 -27.684 -4.632 4.986 AA_G8A13:U23G25_AA 7 -155.327 -82.535 -66.711 -2.755 -1.061 3.028 34.508 A A 13 14 4.174 A A 23 22 3.172 2.474 0.457 -1.943 AA_A13C14:G22U23_AA 8 -0.081 0.137 34.422 -3.640 -0.782 2.805 34.298 A A 14 15 10.839 A A 22 21 3.261 6.353 -0.732 -1.937 AA_C14C15:G21G22_AA 9 2.298 -3.920 33.646 -4.219 1.580 3.088 19.665 A A 15 16 7.365 A A 21 19 3.329 2.507 -0.651 -1.324 AA_C15C16:G19G21_AA 10 1.220 -3.585 19.468 -5.069 2.487 2.855 33.584 B B 2 3 4.140 B B 31 30 2.953 2.388 0.244 -0.975 BB_G2C3:G30C31_BB 11 -2.364 4.098 33.420 -2.036 -0.766 2.197 36.449 B B 3 4 25.205 B B 30 29 2.986 15.216 -0.101 -1.220 BB_C3A4:U29G30_BB 12 -6.790 11.247 32.533 -3.727 -0.630 2.941 30.937 B B 4 5 5.673 B B 29 28 3.087 3.021 0.116 -1.349 BB_A4C5:G28U29_BB 13 -0.603 1.132 30.787 -3.068 -0.325 1.726 35.733 B B 5 6 31.662 B B 28 27 2.917 18.520 -0.022 -1.543 BB_C5G6:C27G28_BB 14 2.431 -4.157 30.599 -4.573 0.306 2.873 32.387 B B 6 7 7.359 B B 27 26 3.067 4.092 -0.410 -1.168 BB_G6U7:A26C27_BB 15 1.823 -3.279 32.084 -2.752 1.028 -0.572 177.616 B B 7 8 -77.893 B B 26 25 -1.330 -153.750 3.111 -1.159 BB_U7G8:G25A26_BB 16 -88.928 45.053 1.569 -1.392 -1.086 -3.687 -161.033 B B 8 13 12.521 B B 25 23 -0.802 -23.511 -4.707 5.152 BB_G8A13:U23G25_BB 17 -155.634 -82.886 -65.544 -2.795 -1.171 3.035 35.092 B B 13 14 4.689 B B 23 22 3.202 2.824 0.026 -1.982 BB_A13C14:G22U23_BB 18 -1.080 1.794 34.966 -3.691 -0.198 2.762 33.242 B B 14 15 10.058 B B 22 21 3.120 5.723 -0.252 -1.748 BB_C14C15:G21G22_BB 19 2.036 -3.578 32.698 -3.924 0.750 2.686 20.039 B B 15 16 13.791 B B 21 19 3.130 4.754 -0.761 -1.538 BB_C15C16:G19G21_BB 20 -0.132 0.383 19.472 -6.412 2.132 2.696 34.289 C C 2 3 12.004 C C 31 30 3.037 7.022 0.275 -1.240 CC_G2C3:G30C31_CC 21 -2.900 4.958 33.461 -3.082 -0.870 1.703 39.051 C C 3 4 33.365 C C 30 29 3.019 21.114 -0.069 -1.601 CC_C3A4:U29G30_CC 22 -5.309 8.389 32.618 -4.415 -0.404 2.989 32.642 C C 4 5 4.254 C C 29 28 3.084 2.389 -0.342 -1.329 CC_A4C5:G28U29_CC 23 -0.793 1.412 32.548 -2.750 0.481 2.259 34.205 C C 5 6 22.502 C C 28 27 3.043 12.909 0.046 -1.530 CC_C5G6:C27G28_CC 24 2.931 -5.109 31.611 -4.323 0.313 3.237 34.338 C C 6 7 1.423 C C 27 26 3.279 0.839 -0.227 -1.149 CC_G6U7:A26C27_CC 25 1.706 -2.891 34.287 -2.076 0.651 0.337 -178.782 C C 7 8 77.484 C C 26 25 -0.150 -154.716 3.298 -0.647 CC_U7G8:G25A26_CC 26 -86.577 -43.359 -126.512 0.343 1.638 -3.911 -161.419 C C 8 13 11.349 C C 25 23 -0.881 -21.329 -4.843 5.271 CC_G8A13:U23G25_CC 27 -156.517 -83.280 -64.725 -2.849 -1.143 3.137 34.319 C C 13 14 1.301 C C 23 22 3.173 0.768 0.342 -1.847 CC_A13C14:G22U23_CC 28 0.525 -0.890 34.307 -3.247 -0.500 2.750 34.845 C C 14 15 10.880 C C 22 21 3.123 6.480 -0.493 -1.739 CC_C14C15:G21G22_CC 29 0.562 -0.944 34.252 -3.796 0.900 2.832 21.480 C C 15 16 12.312 C C 21 19 3.165 4.553 -0.593 -1.376 CC_C15C16:G19G21_CC 30 -1.090 2.948 20.970 -5.398 1.184 repository Initial release 1 0 2026-09-23 China National Natural Science Foundation of China (NSFC) 32171191 huanglin36@mail.sysu.edu.cn 0000-0002-2121-365X Lin Huang principal investigator/group leader N PDBJ Y PDBC 2025-03-07 REL REL XAN XAN SUBJECT OF INVESTIGATION GTP GUANOSINE-5'-TRIPHOSPHATE XAN XANTHINE BA BARIUM ION HOH water 32630 synthetic construct sample 1 32 Y N 9M69 XBA12-XAN structure PDB experimental model GTP 1 2 GTP GTP 101 A XAN 102 3 XAN XAN 102 A BA 2 4 BA BA 103 A GTP 1 2 GTP GTP 101 B XAN 102 3 XAN XAN 102 B BA 1 4 BA BA 103 B BA 5 4 BA BA 104 B GTP 1 2 GTP GTP 101 C XAN 102 3 XAN XAN 102 C BA 3 4 BA BA 103 C BA 4 4 BA BA 104 C HOH 4 5 HOH HOH 201 A HOH 3 5 HOH HOH 201 B HOH 5 5 HOH HOH 202 B HOH 1 5 HOH HOH 203 B HOH 2 5 HOH HOH 201 C n 1 1 A G 2 n 2 G 2 A C 3 n 3 C 3 A A 4 n 4 A 4 A C 5 n 5 C 5 A G 6 n 6 G 6 A U 7 n 7 U 7 A G 8 n 8 G 8 A U 9 n 9 U 9 A A 10 n 10 A 10 A U 11 n 11 U 11 A U 12 n 12 U 12 A A 13 n 13 A 13 A C 14 n 14 C 14 A C 15 n 15 C 15 A C 16 n 16 C 16 A U 17 n 17 U 17 A A 18 n 18 A 18 A G 19 n 19 G 19 A U 20 n 20 U 20 A G 21 n 21 G 21 A G 22 n 22 G 22 A U 23 n 23 U 23 A C 24 n 24 C 24 A G 25 n 25 G 25 A A 26 n 26 A 26 A C 27 n 27 C 27 A G 28 n 28 G 28 A U 29 n 29 U 29 A G 30 n 30 G 30 A C 31 n 31 C 31 A C 32 n 32 C 32 A n 1 1 B G 2 n 2 G 2 B C 3 n 3 C 3 B A 4 n 4 A 4 B C 5 n 5 C 5 B G 6 n 6 G 6 B U 7 n 7 U 7 B G 8 n 8 G 8 B U 9 n 9 U 9 B A 10 n 10 A 10 B U 11 n 11 U 11 B U 12 n 12 U 12 B A 13 n 13 A 13 B C 14 n 14 C 14 B C 15 n 15 C 15 B C 16 n 16 C 16 B U 17 n 17 U 17 B A 18 n 18 A 18 B G 19 n 19 G 19 B U 20 n 20 U 20 B G 21 n 21 G 21 B G 22 n 22 G 22 B U 23 n 23 U 23 B C 24 n 24 C 24 B G 25 n 25 G 25 B A 26 n 26 A 26 B C 27 n 27 C 27 B G 28 n 28 G 28 B U 29 n 29 U 29 B G 30 n 30 G 30 B C 31 n 31 C 31 B C 32 n 32 C 32 B n 1 1 C G 2 n 2 G 2 C C 3 n 3 C 3 C A 4 n 4 A 4 C C 5 n 5 C 5 C G 6 n 6 G 6 C U 7 n 7 U 7 C G 8 n 8 G 8 C U 9 n 9 U 9 C A 10 n 10 A 10 C U 11 n 11 U 11 C U 12 n 12 U 12 C A 13 n 13 A 13 C C 14 n 14 C 14 C C 15 n 15 C 15 C C 16 n 16 C 16 C U 17 n 17 U 17 C A 18 n 18 A 18 C G 19 n 19 G 19 C U 20 n 20 U 20 C G 21 n 21 G 21 C G 22 n 22 G 22 C U 23 n 23 U 23 C C 24 n 24 C 24 C G 25 n 25 G 25 C A 26 n 26 A 26 C C 27 n 27 C 27 C G 28 n 28 G 28 C U 29 n 29 U 29 C G 30 n 30 G 30 C C 31 n 31 C 31 C C 32 n 32 C 32 C 2.17086157694 -3.08540528559 6.17029174111 4.24927225996 -2.48331748691 5.66344611858 1.1601416707 4.13245868387 1.49242466733 -1.66300866048 -2.24120902624 -0.0441359080542 0.766493262252 0.404957665676 0.890577940415 0.857568839085 0.307871075114 -0.0861778029279 1.99577838762 -0.264144069622 0.845136382043 refined -40.6144231512 -14.7500909201 -5.21757726726 X-RAY DIFFRACTION 6.01377624588 4.53565657489 -0.815017672885 3.82142392196 -0.202838938751 8.06474494781 -0.163023963618 1.96272239078 1.54570119692 -0.464143105913 0.110769653132 2.81715696489 -0.79367197139 -1.28869748474 0.133020661158 0.923426851553 0.310263888012 0.269839915771 1.51690593634 0.468157946037 1.29514308397 refined -48.4586436205 -3.98349258865 2.67227398399 X-RAY DIFFRACTION 3.64895442523 0.977663949006 -1.34825767385 2.21595151807 0.310985177788 5.60344207228 -0.145650256643 2.22628670968 -0.97845982193 -0.468563122396 -0.513643052566 -0.445232044566 1.54852691265 0.0071118673597 0.544504562224 0.939774838192 0.133995832913 0.278221406425 1.37904214727 -0.227903985873 0.919000692706 refined -35.8490840257 -18.7799032441 -2.6053181918 X-RAY DIFFRACTION 4.76375968097 0.836797807082 0.419401944304 1.26504877418 2.41995885976 4.77387843096 -0.00717217287984 -0.469755345118 2.36325402849 0.265315317469 0.151699072764 -2.16908459955 -0.377002971861 1.36510106223 -0.512453735104 1.22402314134 0.286065765949 0.317005821695 0.849957374769 0.289227992523 2.46490856319 refined -47.5457210588 -32.1431535264 -6.70491757186 X-RAY DIFFRACTION 7.61041707521 2.36168168345 2.08878628096 9.0099777457 -3.15553400761 8.60467174212 -0.679815099131 -0.408150812449 0.308379168169 -0.0369874309009 0.518495988629 1.13654932106 0.0815693577063 -0.434140839935 0.153154832362 1.00708284369 0.137613614388 0.0737141916344 0.75610423938 -0.00548906261822 0.677668251085 refined -63.6366519671 -22.4641401835 -4.63340515254 X-RAY DIFFRACTION 4.85776410809 -0.509281877866 0.0568746428888 2.77425380858 -0.205116686332 4.58174743038 -0.599177439023 -0.238984008762 -1.02081596349 -0.942183374706 0.127525909165 -2.50331664049 1.05396090306 1.06256525501 0.280014279692 1.24657907832 0.210914289342 0.375167737016 0.682914467695 0.15614453589 1.55801916399 refined -51.2329803171 -34.9968471753 -5.33557388756 X-RAY DIFFRACTION 4.18416649465 1.00627957532 1.77729217462 1.45892331219 -1.37209354507 3.62414993022 -0.124985103236 -0.0332261685361 -2.14093095743 -0.616144991333 0.644386497816 -2.09268243775 1.91661981852 1.88197960077 -0.721729834459 1.96661539455 -0.200485279195 0.506407599545 1.31708688259 -0.706281441897 1.82236062671 refined -55.4442746825 -37.3516188251 16.424459681 X-RAY DIFFRACTION 7.37126396699 3.95120865491 -1.48347290834 8.61277881698 -4.85032898131 3.19630706362 -0.498697501319 1.2472846333 -1.04526700345 0.247018823209 0.350577097517 -1.2770672515 -0.482469500142 -0.724269988598 -0.246268600119 1.15766161813 -0.382009715846 0.263897764242 1.09834438874 -0.284841765894 0.734529097685 refined -52.5046008956 -21.2215097693 15.9991014727 X-RAY DIFFRACTION 1.94123920633 -0.956697087198 2.50970317034 2.17118593978 -0.818484712771 4.28595891602 -0.198425015362 1.14830027872 1.48461213135 1.37442335858 -0.30837823353 -1.23769365526 -0.572135887717 0.309747100009 0.558842768337 1.15395385048 -0.163674730871 0.155554254746 0.86452888395 -0.0412345361448 1.11572131968 refined -45.3890134982 -20.6521064644 27.5972600375 X-RAY DIFFRACTION 6.33390299007 1.94810419194 0.62996079367 8.62384425244 2.20733744738 6.19861580838 0.522121710705 1.71040855953 -0.263308707689 0.732797382647 -0.191051339933 -0.448423866504 -1.44764795396 1.41293790472 -0.341912150593 1.36319222305 -0.546910675749 0.62208732185 1.33090695744 -0.20128052439 1.49852153894 refined -38.3420096766 -20.8345763802 16.5676528018 X-RAY DIFFRACTION 8.58853485806 0.388497453905 1.34289043407 5.17593856528 -2.36505076229 3.13865936399 0.895218906411 -0.584593546869 -1.96204507805 -0.231898861692 -0.91888534207 0.438677235962 0.888728250401 -0.444286592824 0.36756374473 1.21012936051 -0.284212819485 0.395274730571 1.08178326069 -0.46145930258 1.36999399547 refined -57.2878917594 -33.9324250641 19.5360682205 X-RAY DIFFRACTION A 2 B A 11 B X-RAY DIFFRACTION 1 chain 'A' and (resid 2 through 11 ) A 12 B A 21 B X-RAY DIFFRACTION 2 chain 'A' and (resid 12 through 21 ) A 22 B A 32 B X-RAY DIFFRACTION 3 chain 'A' and (resid 22 through 32 ) B 2 E B 6 E X-RAY DIFFRACTION 4 chain 'B' and (resid 2 through 6 ) B 7 E B 21 E X-RAY DIFFRACTION 5 chain 'B' and (resid 7 through 21 ) B 22 E B 32 E X-RAY DIFFRACTION 6 chain 'B' and (resid 22 through 32 ) C 2 H C 6 H X-RAY DIFFRACTION 7 chain 'C' and (resid 2 through 6 ) C 7 H C 11 H X-RAY DIFFRACTION 8 chain 'C' and (resid 7 through 11 ) C 12 H C 16 H X-RAY DIFFRACTION 9 chain 'C' and (resid 12 through 16 ) C 17 H C 21 H X-RAY DIFFRACTION 10 chain 'C' and (resid 17 through 21 ) C 22 H C 32 H X-RAY DIFFRACTION 11 chain 'C' and (resid 22 through 32 ) author_defined_assembly 2 dimeric author_defined_assembly 2 dimeric author_defined_assembly 2 dimeric A A 18 A OP1 A 18 1_555 B BA 104 J BA BA 2_455 B U 17 B O2 U 17 1_555 37.5 B G 21 B O6 G 21 1_555 B BA 103 I BA BA 1_555 B HOH 202 P O HOH 1_555 81.5 B G 21 B O6 G 21 1_555 B BA 103 I BA BA 1_555 B HOH 203 P O HOH 1_555 95.7 B HOH 202 P O HOH 1_555 B BA 103 I BA BA 1_555 B HOH 203 P O HOH 1_555 172.7 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 0.0000000000 1.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 0.0000000000 -1.0000000000 7_555 y,x,-z crystal symmetry operation 0.0000000000 0.0000000000 0.0000000000 0.0000000000 -1.0000000000 0.0000000000 -1.0000000000 0.0000000000 0.0000000000 0.0000000000 0.0000000000 -1.0000000000 8_446 -y-1,-x-1,-z+1 crystal symmetry operation -107.7300000000 -107.7300000000 47.3900000000 1 A G 1 A G 1 1 Y 1 B G 1 B G 1 1 Y 1 C G 1 C G 1 1 Y 1 B B OP1 O3' G GTP 2 101 1.93 1 A A OP1 O3' G GTP 2 101 1.94 1 5.23 0.70 108.50 113.73 B B B O4' C1' N1 U U U 12 12 12 N 1 7.50 1.20 117.70 125.20 B B B C2 N1 C1' U U U 12 12 12 N 108.22 0.3085 0.2733 0.2751 2.51 35.58 484 9478 9962 4.86 99.80 0.6352 1 FREE R-VALUE 1.35 MOLECULAR REPLACEMENT 45.6079 0.9000 1.1100 GeoStd + Monomer Library + CDL v1.2 FLAT BULK SOLVENT MODEL 2.51 35.58 5 2110 134 1971 0 0.0027 2334 0.8659 3627 0.0394 477 0.0046 99 17.5025 1149 d_2 D A ens_1 X-RAY DIFFRACTION Torsion NCS 0.894257800168 d_3 D A ens_1 X-RAY DIFFRACTION Torsion NCS 1.28681242296 0.5159 0.4261 2.87 157 3068 99.81 0.2909 0.3169 3.62 146 3135 99.70 0.2956 0.2405 35.58 181 3275 99.88 79.54 2.51 35.91 9M6C 9962 0.999 0.092 0.026 1 22.8 25.1 99.9 3.135 2.51 2.58 698 0.530 0.863 1 99.8 refinement PHENIX 1.19.2_4158 data reduction xia2 data scaling xia2 phasing PHASER 94 tetragonal P 42 21 2 P 4n 2n x,y,z -y+1/2,x+1/2,z+1/2 y+1/2,-x+1/2,z+1/2 x+1/2,-y+1/2,-z+1/2 -x+1/2,y+1/2,-z+1/2 -x,-y,z y,x,-z -y,-x,-z N Crystal structure of xanthine/guanine RNA aptamer with xanthine 1 N N 1 N N 1 N N 2 N N 3 N N 4 N N 2 N N 3 N N 4 N N 4 N N 2 N N 3 N N 4 N N 4 N N 5 N N 5 N N 5 N N covale 1.560 both A G 2 A P G 2 1_555 A GTP 101 D O3' GTP 1_555 covale 1.562 both B G 2 B P G 2 1_555 B GTP 101 G O3' GTP 1_555 metalc 2.817 A A 18 A OP1 A 18 1_555 B BA 104 J BA BA 2_455 metalc 3.276 A G 22 A O6 G 22 1_555 A BA 103 F BA BA 1_555 metalc 2.959 B U 17 B O2 U 17 1_555 B BA 104 J BA BA 1_555 metalc 2.943 B G 21 B O6 G 21 1_555 B BA 103 I BA BA 1_555 metalc 2.964 B BA 103 I BA BA 1_555 B HOH 202 P O HOH 1_555 metalc 3.423 B BA 103 I BA BA 1_555 B HOH 203 P O HOH 1_555 metalc 3.447 C A 10 C OP2 A 10 1_555 C BA 103 M BA BA 1_555 hydrog WATSON-CRICK A G 2 A N1 G 2 1_555 A C 31 A N3 C 31 1_555 hydrog WATSON-CRICK A G 2 A N2 G 2 1_555 A C 31 A O2 C 31 1_555 hydrog WATSON-CRICK A G 2 A O6 G 2 1_555 A C 31 A N4 C 31 1_555 hydrog WATSON-CRICK A C 3 A N3 C 3 1_555 A G 30 A N1 G 30 1_555 hydrog WATSON-CRICK A C 3 A N4 C 3 1_555 A G 30 A O6 G 30 1_555 hydrog WATSON-CRICK A C 3 A O2 C 3 1_555 A G 30 A N2 G 30 1_555 hydrog WATSON-CRICK A A 4 A N1 A 4 1_555 A U 29 A N3 U 29 1_555 hydrog WATSON-CRICK A A 4 A N6 A 4 1_555 A U 29 A O4 U 29 1_555 hydrog WATSON-CRICK A C 5 A N3 C 5 1_555 A G 28 A N1 G 28 1_555 hydrog WATSON-CRICK A C 5 A N4 C 5 1_555 A G 28 A O6 G 28 1_555 hydrog WATSON-CRICK A C 5 A O2 C 5 1_555 A G 28 A N2 G 28 1_555 hydrog WATSON-CRICK A G 6 A N1 G 6 1_555 A C 27 A N3 C 27 1_555 hydrog WATSON-CRICK A G 6 A N2 G 6 1_555 A C 27 A O2 C 27 1_555 hydrog WATSON-CRICK A G 6 A O6 G 6 1_555 A C 27 A N4 C 27 1_555 hydrog WATSON-CRICK A U 7 A N3 U 7 1_555 A A 26 A N1 A 26 1_555 hydrog WATSON-CRICK A U 7 A O4 U 7 1_555 A A 26 A N6 A 26 1_555 hydrog TYPE_3_PAIR A G 8 A N1 G 8 1_555 A G 25 A O6 G 25 1_555 hydrog TYPE_3_PAIR A G 8 A O6 G 8 1_555 A G 25 A N1 G 25 1_555 hydrog HOOGSTEEN A U 11 A N3 U 11 1_555 A A 13 A N7 A 13 1_555 hydrog HOOGSTEEN A U 11 A O4 U 11 1_555 A A 13 A N6 A 13 1_555 hydrog WATSON-CRICK A A 13 A N1 A 13 1_555 A U 23 A N3 U 23 1_555 hydrog WATSON-CRICK A A 13 A N6 A 13 1_555 A U 23 A O4 U 23 1_555 hydrog WATSON-CRICK A C 14 A N3 C 14 1_555 A G 22 A N1 G 22 1_555 hydrog WATSON-CRICK A C 14 A N4 C 14 1_555 A G 22 A O6 G 22 1_555 hydrog WATSON-CRICK A C 14 A O2 C 14 1_555 A G 22 A N2 G 22 1_555 hydrog WATSON-CRICK A C 15 A N3 C 15 1_555 A G 21 A N1 G 21 1_555 hydrog WATSON-CRICK A C 15 A N4 C 15 1_555 A G 21 A O6 G 21 1_555 hydrog WATSON-CRICK A C 15 A O2 C 15 1_555 A G 21 A N2 G 21 1_555 hydrog WATSON-CRICK A C 16 A N3 C 16 1_555 A G 19 A N1 G 19 1_555 hydrog WATSON-CRICK A C 16 A N4 C 16 1_555 A G 19 A O6 G 19 1_555 hydrog WATSON-CRICK A C 16 A O2 C 16 1_555 A G 19 A N2 G 19 1_555 hydrog G-U MISPAIR A G 25 A N2 G 25 1_555 C U 20 C O4 U 20 1_555 hydrog WATSON-CRICK B G 2 B N1 G 2 1_555 B C 31 B N3 C 31 1_555 hydrog WATSON-CRICK B G 2 B N2 G 2 1_555 B C 31 B O2 C 31 1_555 hydrog WATSON-CRICK B G 2 B O6 G 2 1_555 B C 31 B N4 C 31 1_555 hydrog WATSON-CRICK B C 3 B N3 C 3 1_555 B G 30 B N1 G 30 1_555 hydrog WATSON-CRICK B C 3 B N4 C 3 1_555 B G 30 B O6 G 30 1_555 hydrog WATSON-CRICK B C 3 B O2 C 3 1_555 B G 30 B N2 G 30 1_555 hydrog WATSON-CRICK B A 4 B N1 A 4 1_555 B U 29 B N3 U 29 1_555 hydrog WATSON-CRICK B A 4 B N6 A 4 1_555 B U 29 B O4 U 29 1_555 hydrog WATSON-CRICK B C 5 B N3 C 5 1_555 B G 28 B N1 G 28 1_555 hydrog WATSON-CRICK B C 5 B N4 C 5 1_555 B G 28 B O6 G 28 1_555 hydrog WATSON-CRICK B C 5 B O2 C 5 1_555 B G 28 B N2 G 28 1_555 hydrog WATSON-CRICK B G 6 B N1 G 6 1_555 B C 27 B N3 C 27 1_555 hydrog WATSON-CRICK B G 6 B N2 G 6 1_555 B C 27 B O2 C 27 1_555 hydrog WATSON-CRICK B G 6 B O6 G 6 1_555 B C 27 B N4 C 27 1_555 hydrog WATSON-CRICK B U 7 B N3 U 7 1_555 B A 26 B N1 A 26 1_555 hydrog WATSON-CRICK B U 7 B O4 U 7 1_555 B A 26 B N6 A 26 1_555 hydrog TYPE_3_PAIR B G 8 B N1 G 8 1_555 B G 25 B O6 G 25 1_555 hydrog TYPE_3_PAIR B G 8 B O6 G 8 1_555 B G 25 B N1 G 25 1_555 hydrog U-A PAIR B U 11 B N3 U 11 1_555 B A 13 B N7 A 13 1_555 hydrog WATSON-CRICK B A 13 B N1 A 13 1_555 B U 23 B N3 U 23 1_555 hydrog WATSON-CRICK B A 13 B N6 A 13 1_555 B U 23 B O4 U 23 1_555 hydrog WATSON-CRICK B C 14 B N3 C 14 1_555 B G 22 B N1 G 22 1_555 hydrog WATSON-CRICK B C 14 B N4 C 14 1_555 B G 22 B O6 G 22 1_555 hydrog WATSON-CRICK B C 14 B O2 C 14 1_555 B G 22 B N2 G 22 1_555 hydrog WATSON-CRICK B C 15 B N3 C 15 1_555 B G 21 B N1 G 21 1_555 hydrog WATSON-CRICK B C 15 B N4 C 15 1_555 B G 21 B O6 G 21 1_555 hydrog WATSON-CRICK B C 15 B O2 C 15 1_555 B G 21 B N2 G 21 1_555 hydrog WATSON-CRICK B C 16 B N3 C 16 1_555 B G 19 B N1 G 19 1_555 hydrog WATSON-CRICK B C 16 B N4 C 16 1_555 B G 19 B O6 G 19 1_555 hydrog WATSON-CRICK B C 16 B O2 C 16 1_555 B G 19 B N2 G 19 1_555 hydrog WATSON-CRICK C G 2 C N1 G 2 1_555 C C 31 C N3 C 31 1_555 hydrog WATSON-CRICK C G 2 C N2 G 2 1_555 C C 31 C O2 C 31 1_555 hydrog WATSON-CRICK C G 2 C O6 G 2 1_555 C C 31 C N4 C 31 1_555 hydrog WATSON-CRICK C C 3 C N3 C 3 1_555 C G 30 C N1 G 30 1_555 hydrog WATSON-CRICK C C 3 C N4 C 3 1_555 C G 30 C O6 G 30 1_555 hydrog WATSON-CRICK C C 3 C O2 C 3 1_555 C G 30 C N2 G 30 1_555 hydrog WATSON-CRICK C A 4 C N1 A 4 1_555 C U 29 C N3 U 29 1_555 hydrog WATSON-CRICK C A 4 C N6 A 4 1_555 C U 29 C O4 U 29 1_555 hydrog WATSON-CRICK C C 5 C N3 C 5 1_555 C G 28 C N1 G 28 1_555 hydrog WATSON-CRICK C C 5 C N4 C 5 1_555 C G 28 C O6 G 28 1_555 hydrog WATSON-CRICK C C 5 C O2 C 5 1_555 C G 28 C N2 G 28 1_555 hydrog WATSON-CRICK C G 6 C N1 G 6 1_555 C C 27 C N3 C 27 1_555 hydrog WATSON-CRICK C G 6 C N2 G 6 1_555 C C 27 C O2 C 27 1_555 hydrog WATSON-CRICK C G 6 C O6 G 6 1_555 C C 27 C N4 C 27 1_555 hydrog WATSON-CRICK C U 7 C N3 U 7 1_555 C A 26 C N1 A 26 1_555 hydrog WATSON-CRICK C U 7 C O4 U 7 1_555 C A 26 C N6 A 26 1_555 hydrog TYPE_3_PAIR C G 8 C N1 G 8 1_555 C G 25 C O6 G 25 1_555 hydrog TYPE_3_PAIR C G 8 C O6 G 8 1_555 C G 25 C N1 G 25 1_555 hydrog HOOGSTEEN C U 11 C N3 U 11 1_555 C A 13 C N7 A 13 1_555 hydrog HOOGSTEEN C U 11 C O4 U 11 1_555 C A 13 C N6 A 13 1_555 hydrog WATSON-CRICK C A 13 C N1 A 13 1_555 C U 23 C N3 U 23 1_555 hydrog WATSON-CRICK C A 13 C N6 A 13 1_555 C U 23 C O4 U 23 1_555 hydrog WATSON-CRICK C C 14 C N3 C 14 1_555 C G 22 C N1 G 22 1_555 hydrog WATSON-CRICK C C 14 C N4 C 14 1_555 C G 22 C O6 G 22 1_555 hydrog WATSON-CRICK C C 14 C O2 C 14 1_555 C G 22 C N2 G 22 1_555 hydrog WATSON-CRICK C C 15 C N3 C 15 1_555 C G 21 C N1 G 21 1_555 hydrog WATSON-CRICK C C 15 C N4 C 15 1_555 C G 21 C O6 G 21 1_555 hydrog WATSON-CRICK C C 15 C O2 C 15 1_555 C G 21 C N2 G 21 1_555 hydrog WATSON-CRICK C C 16 C N3 C 16 1_555 C G 19 C N1 G 19 1_555 hydrog WATSON-CRICK C C 16 C N4 C 16 1_555 C G 19 C O6 G 19 1_555 hydrog WATSON-CRICK C C 16 C O2 C 16 1_555 C G 19 C N2 G 19 1_555 RNA xanthine/guanine RNA aptamer, RNA, xanthine chain "A" chain "B" chain "C" A GTP 101 D GTP A GTP 101 D GTP A G 2 A G 2 A C 3 A C 3 A XAN 102 E XAN A XAN 102 E XAN B GTP 101 G GTP B GTP 101 G GTP B G 2 B G 2 B C 3 B C 3 B XAN 102 H XAN B XAN 102 H XAN C GTP 101 K GTP C GTP 101 K GTP C G 2 C G 2 C C 3 C C 3 C XAN 102 L XAN C XAN 102 L XAN given 0.943183812526 0.0412088328955 -0.32970612351 -0.0987099181259 0.98223238867 -0.159611674732 0.317270622422 0.183088412355 0.930493409654 -17.5616171978 -20.3635883811 11.9072868141 given 0.0200083492135 0.976665880431 0.213830362585 -0.999776851669 0.020994409394 -0.00234129028775 -0.0067759005132 -0.213735801343 0.976868002545 -37.6169174356 -69.3700856221 17.9589406971 9M6C PDB 1 1 9M6C 1 32 9M6C 1 32 9M6C A 1 1 32 1 32 9M6C 1 32 9M6C B 1 1 32 1 32 9M6C 1 32 9M6C C 1 1 32 94 P 42 21 2 P 4n 2n