0.023758 0.013717 0.000000 0.000000 0.027433 0.000000 0.000000 0.000000 0.007686 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. 4.01032 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. 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. 0009-0003-6281-4798 Essex, J. 0000-0003-4131-1203 Szostak, J.W. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 18 90.000 90.000 120.000 42.091 42.091 130.113 199631.840 C9 H13 N2 O9 P 324.181 L-URIDINE-5'-MONOPHOSPHATE L-RNA linking C10 H14 N5 O7 P 347.221 y ADENOSINE-5'-MONOPHOSPHATE 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 C11 H14 N5 O7 P 359.232 n [(1R,3R,4R,7S)-7-HYDROXY-3-(ADENIN-9-YL)-2,5-DIOXABICYCLO[2.2.1]HEPT-1-YL]METHYL DIHYDROGEN PHOSPHATE RNA linking 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 S C N 8 N O N 9 R C N 10 N O N 11 S C N 12 N O N 13 S C N 14 N N N 15 N C N 16 N O N 17 N N N 18 N C N 19 N O N 20 N C N 21 N C N 22 N H N 23 N H 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 O N 36 N P N 37 N O N 38 N O N 39 N O N 40 N C N 41 R C N 42 N O N 43 S C N 44 N O N 45 R C N 46 N O N 47 R C Y 48 N N Y 49 N C Y 50 N N Y 51 N C Y 52 N C N 53 N N Y 54 N N Y 55 N C Y 56 N N Y 57 N C N 58 N H N 59 N H 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 O N 73 N P N 74 N O N 75 N O N 76 N O N 77 N C N 78 R C N 79 N O N 80 S C N 81 N O N 82 R C N 83 N O N 84 R C N 85 N N N 86 N C N 87 N O N 88 N N N 89 N C N 90 N N N 91 N C N 92 N C N 93 N H N 94 N H N 95 N H 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 O N 108 N P N 109 N O N 110 N O N 111 N O N 112 N C N 113 R C N 114 N O N 115 S C N 116 N O N 117 R C N 118 N O N 119 R C Y 120 N N Y 121 N C Y 122 N N Y 123 N C N 124 N C N 125 N O N 126 N N N 127 N C N 128 N N N 129 N N Y 130 N C N 131 N H N 132 N H N 133 N H 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 O N 146 N H N 147 N H N 148 N P N 149 N O N 150 N O N 151 N C N 152 S C N 153 N C Y 154 N N Y 155 N C Y 156 N C Y 157 N N Y 158 N C Y 159 N C N 160 R C N 161 N N N 162 R C N 163 R C Y 164 N C Y 165 N N N 166 N O N 167 N O Y 168 N N N 169 N O N 170 N O N 171 N O N 172 N H 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 186 N O N 187 N P N 188 N O N 189 N O N 190 N O N 191 N C N 192 R C N 193 N O N 194 S C N 195 N O N 196 R C N 197 N O N 198 R C N 199 N N N 200 N C N 201 N O N 202 N N N 203 N C N 204 N O N 205 N C N 206 N C N 207 N H N 208 N H N 209 N H N 210 N H N 211 N H N 212 N H N 213 N H N 214 N H N 215 N H N 216 N H N 217 N H N 218 N H N 219 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 N 25 N sing N 26 N sing N 27 N doub N 28 N sing N 29 N sing N 30 N sing N 31 N doub N 32 N sing N 33 N doub N 34 N sing N 35 N sing N 36 N sing N 37 N sing N 38 N doub N 39 N sing N 40 N sing N 41 N sing N 42 N sing 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 Y 60 N sing Y 61 N sing Y 62 N doub N 63 N sing Y 64 N sing Y 65 N sing Y 66 N doub N 67 N sing Y 68 N doub N 69 N sing N 70 N sing Y 71 N sing Y 72 N doub N 73 N sing Y 74 N sing N 75 N sing N 76 N sing N 77 N doub N 78 N sing 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 N 100 N sing N 101 N doub N 102 N sing N 103 N doub N 104 N sing N 105 N sing N 106 N sing N 107 N sing N 108 N doub N 109 N sing N 110 N sing N 111 N sing N 112 N sing N 113 N doub N 114 N sing N 115 N sing N 116 N sing 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 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 Y 135 N sing Y 136 N sing Y 137 N doub N 138 N sing Y 139 N sing N 140 N sing Y 141 N doub N 142 N doub N 143 N sing N 144 N sing N 145 N sing N 146 N sing N 147 N doub N 148 N sing N 149 N sing N 150 N sing N 151 N sing N 152 N sing N 153 N sing N 154 N sing N 155 N doub N 156 N sing N 157 N sing N 158 N sing N 159 N sing 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 Y 170 N sing Y 171 N sing N 172 N sing Y 173 N doub N 174 N sing Y 175 N doub Y 176 N sing Y 177 N sing Y 178 N sing N 179 N sing Y 180 N doub 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 Y 189 N sing Y 190 N doub N 191 N sing N 192 N sing N 193 N sing N 194 N sing N 195 N sing N 196 N doub N 197 N sing N 198 N sing N 199 N sing N 200 N sing N 201 N sing N 202 N sing N 203 N sing N 204 N sing N 205 N sing N 206 N sing N 207 N sing N 208 N sing N 209 N sing N 210 N sing N 211 N sing N 212 N sing N 213 N sing N 214 N sing N 215 N sing N 216 N sing N 217 N sing N 218 N sing N 219 N sing N 220 N doub N 221 N sing N 222 N sing N 223 N sing N 224 N doub N 225 N sing N 226 N doub N 227 N sing N 228 N sing To Be Published 0353 Effects of Chemically Activated L-Nucleotides on Nonenzymatic RNA Copying 0009-0003-6281-4798 0000-0001-9094-9882 0000-0001-8799-3444 0000-0003-4131-1203 10.2210/pdb36ll/pdb pdb_000036ll 100 1 N PIXEL 2025-12-20 DECTRIS EIGER X 16M Double crystal cryo-cooled Si(111) SINGLE WAVELENGTH M x-ray 1 1.0332 1.0 23-ID-B APS 1.0332 SYNCHROTRON APS BEAMLINE 23-ID-B 5095.074 RNA (16-mer) 1 syn polymer 18.015 water 46 nat water no yes AGAGA(LCA)GAUC(0U)UCUCU AGAGAAGAUCUUCUCU A polyribonucleotide n n n n n n n n n n n n n n n n 1 2.11 41.80 VAPOR DIFFUSION, SITTING DROP 7.0 0.04 M Lithium chloride, 0.08 M Strontium chloride hexahydrate, 0.04 M Sodium cacodylate trihydrate pH 7.0, 30%v/v (+/-)-2-Methyl-2,4-pentanediol, 0.012 M Spermine tetrahydrochloride 291 -1.595 1 20 A 1 A 16 -0.237 A_A1:U16_A 1 -6.847 0.027 0.237 -0.124 -0.774 1 19 A 2 A 15 1.690 A_G2:C15_A 2 -16.994 -0.325 0.135 -0.198 1.206 1 20 A 3 A 14 1.081 A_A3:U14_A 3 -14.467 0.164 0.124 -0.061 -3.787 1 19 A 4 A 13 0.181 A_G4:C13_A 4 -17.782 -0.147 0.104 -0.175 -7.417 1 20 A 5 A 12 2.596 A_A5:U12_A 5 -17.196 0.174 0.031 -0.099 -14.974 1 20 A 6 A 11 4.495 A_LCA6:0U11_A 6 -2.070 -0.065 -0.525 -0.118 -4.742 1 19 A 7 A 10 1.799 A_G7:C10_A 7 -8.552 -0.353 -0.071 -0.114 -1.943 1 20 A 8 A 9 3.561 A_A8:U9_A 8 -12.405 -0.115 -0.002 -0.128 1.943 1 20 A 9 A 8 3.561 A_U9:A8_A 9 -12.405 0.115 -0.002 -0.128 4.742 1 19 A 10 A 7 1.799 A_C10:G7_A 10 -8.552 0.353 -0.071 -0.114 14.974 1 20 A 11 A 6 4.495 A_0U11:LCA6_A 11 -2.070 0.065 -0.525 -0.118 7.417 1 20 A 12 A 5 2.596 A_U12:A5_A 12 -17.196 -0.174 0.031 -0.099 3.787 1 19 A 13 A 4 0.181 A_C13:G4_A 13 -17.782 0.147 0.104 -0.175 -1.206 1 20 A 14 A 3 1.081 A_U14:A3_A 14 -14.467 -0.164 0.124 -0.061 0.774 1 19 A 15 A 2 1.690 A_C15:G2_A 15 -16.994 0.325 0.135 -0.198 1.595 1 20 A 16 A 1 -0.237 A_U16:A1_A 16 -6.847 -0.027 0.237 -0.124 2.923 34.355 A A 1 2 8.915 A A 16 15 3.152 5.247 -0.165 -1.301 AA_A1G2:C15U16_AA 1 0.207 -0.351 33.963 -2.969 0.309 2.980 34.981 A A 2 3 7.519 A A 15 14 3.150 4.508 -0.006 -1.166 AA_G2A3:U14C15_AA 2 0.192 -0.320 34.698 -2.579 0.038 2.694 31.274 A A 3 4 19.407 A A 14 13 3.314 10.270 0.369 -1.435 AA_A3G4:C13U14_AA 3 1.998 -3.775 29.513 -4.502 -0.327 2.931 37.675 A A 4 5 14.080 A A 13 12 3.280 9.010 0.126 -1.134 AA_G4A5:U12C13_AA 4 0.622 -0.972 36.614 -2.882 -0.118 3.474 33.086 A A 5 6 6.921 A A 12 11 3.469 3.855 1.021 -0.978 AA_A5LCA6:0U11U12_AA 5 11.460 -20.575 30.856 -2.433 0.338 1.855 27.111 A A 6 7 31.390 A A 11 10 3.033 13.993 0.154 -1.408 AA_LCA6G7:C100U11_AA 6 -3.031 6.800 23.083 -5.867 -0.949 2.529 32.733 A A 7 8 17.168 A A 10 9 3.151 9.542 -0.001 -1.730 AA_G7A8:U9C10_AA 7 -0.476 0.856 31.344 -4.531 -0.071 2.708 33.402 A A 8 9 15.046 A A 9 8 3.101 8.557 0.000 -1.182 AA_A8U9:A8U9_AA 8 0.000 0.000 32.318 -3.337 0.000 2.529 32.733 A A 9 10 17.168 A A 8 7 3.151 9.542 0.001 -1.730 AA_U9C10:G7A8_AA 9 0.476 -0.856 31.344 -4.531 0.071 1.855 27.111 A A 10 11 31.390 A A 7 6 3.033 13.993 -0.154 -1.408 AA_C100U11:LCA6G7_AA 10 3.031 -6.800 23.083 -5.867 0.949 3.474 33.086 A A 11 12 6.921 A A 6 5 3.469 3.855 -1.021 -0.978 AA_0U11U12:A5LCA6_AA 11 -11.460 20.575 30.856 -2.433 -0.338 2.931 37.675 A A 12 13 14.080 A A 5 4 3.280 9.010 -0.126 -1.134 AA_U12C13:G4A5_AA 12 -0.622 0.972 36.614 -2.882 0.118 2.694 31.274 A A 13 14 19.407 A A 4 3 3.314 10.270 -0.369 -1.435 AA_C13U14:A3G4_AA 13 -1.998 3.775 29.513 -4.502 0.327 2.980 34.981 A A 14 15 7.519 A A 3 2 3.150 4.508 0.006 -1.166 AA_U14C15:G2A3_AA 14 -0.192 0.320 34.698 -2.579 -0.038 2.923 34.355 A A 15 16 8.915 A A 2 1 3.152 5.247 0.165 -1.301 AA_C15U16:A1G2_AA 15 -0.207 0.351 33.963 -2.969 -0.309 repository Initial release 1 0 2026-07-01 United States Howard Hughes Medical Institute (HHMI) United States National Science Foundation (NSF, United States) 2325198 jwszostak@uchicago.edu 0000-0003-4131-1203 Jack Szostak W. principal investigator/group leader N RCSB Y RCSB 2026-06-16 REL REL 0U 0U SUBJECT OF INVESTIGATION HOH water 32630 synthetic construct sample 1 16 Y N 9MDW PDB experimental model HOH 196 2 HOH HOH 101 A HOH 199 2 HOH HOH 102 A HOH 55 2 HOH HOH 103 A HOH 167 2 HOH HOH 104 A HOH 18 2 HOH HOH 105 A HOH 15 2 HOH HOH 106 A HOH 57 2 HOH HOH 107 A HOH 68 2 HOH HOH 108 A HOH 295 2 HOH HOH 109 A HOH 10 2 HOH HOH 110 A HOH 94 2 HOH HOH 111 A HOH 67 2 HOH HOH 112 A HOH 75 2 HOH HOH 113 A HOH 16 2 HOH HOH 114 A HOH 6 2 HOH HOH 115 A HOH 20 2 HOH HOH 116 A HOH 62 2 HOH HOH 117 A HOH 9 2 HOH HOH 118 A HOH 266 2 HOH HOH 119 A HOH 204 2 HOH HOH 120 A HOH 12 2 HOH HOH 121 A HOH 59 2 HOH HOH 122 A HOH 14 2 HOH HOH 123 A HOH 206 2 HOH HOH 124 A HOH 3 2 HOH HOH 125 A HOH 77 2 HOH HOH 126 A HOH 8 2 HOH HOH 127 A HOH 76 2 HOH HOH 128 A HOH 2 2 HOH HOH 129 A HOH 19 2 HOH HOH 130 A HOH 4 2 HOH HOH 131 A HOH 66 2 HOH HOH 132 A HOH 147 2 HOH HOH 133 A HOH 241 2 HOH HOH 134 A HOH 190 2 HOH HOH 135 A HOH 61 2 HOH HOH 136 A HOH 49 2 HOH HOH 137 A HOH 5 2 HOH HOH 138 A HOH 65 2 HOH HOH 139 A HOH 21 2 HOH HOH 140 A HOH 232 2 HOH HOH 141 A HOH 207 2 HOH HOH 142 A HOH 271 2 HOH HOH 143 A HOH 274 2 HOH HOH 144 A HOH 102 2 HOH HOH 145 A HOH 58 2 HOH HOH 146 A A 1 n 1 A 1 A G 2 n 2 G 2 A A 3 n 3 A 3 A G 4 n 4 G 4 A A 5 n 5 A 5 A LCA 6 n 6 LCA 6 A G 7 n 7 G 7 A A 8 n 8 A 8 A U 9 n 9 U 9 A C 10 n 10 C 10 A 0U 11 n 11 0U 11 A U 12 n 12 U 12 A C 13 n 13 C 13 A U 14 n 14 U 14 A C 15 n 15 C 15 A U 16 n 16 U 16 A author_and_software_defined_assembly PISA 2 dimeric mass spectrometry 1420 -5 5850 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 -0.5000000000 0.8660254038 0.0000000000 0.8660254038 0.5000000000 0.0000000000 0.0000000000 0.0000000000 -1.0000000000 4_555 y,x,-z crystal symmetry operation 0.0000000000 0.0000000000 0.0000000000 1 A HOH 121 B HOH 1 A HOH 125 B HOH 1 A HOH 131 B HOH 1 A HOH 138 B HOH 29.93 0.2530 0.2395 0.2409 1.35 24.27 877 7882 8759 10.01 86.76 0.1868 1 FREE R-VALUE 1.36 MOLECULAR REPLACEMENT 35.4503 0.9000 1.1000 GeoStd + Monomer Library + CDL v1.2 FLAT BULK SOLVENT MODEL 1.35 24.27 46 383 120 217 0 0.0054 377 1.0739 587 0.0543 77 0.0096 21 22.6225 229 0.4003 0.2927 1.44 41 371 24.95 0.3188 0.3098 1.55 159 1431 96.36 0.3371 0.3006 1.70 164 1482 99.94 0.2736 0.2786 1.95 168 1504 99.94 0.3191 0.2951 2.45 170 1521 100.00 0.2061 0.1956 24.27 175 1573 97.98 19.67 1.35 24.27 36LL 8765 0.994 1 10.3 6.3 89.3 1.35 1.44 438 0.552 1 refinement PHENIX 1.21.2_5419 data reduction autoPROC 1.0.5 data scaling autoPROC 1.0.5 phasing PHASER 2.8.3 155 trigonal R 3 2 :H R 3 2" x,y,z -y,x-y,z -x+y,-x,z x-y,-y,-z -x,-x+y,-z y,x,-z x+1/3,y+2/3,z+2/3 -y+1/3,x-y+2/3,z+2/3 -x+y+1/3,-x+2/3,z+2/3 x-y+1/3,-y+2/3,-z+2/3 -x+1/3,-x+y+2/3,-z+2/3 y+1/3,x+2/3,-z+2/3 x+2/3,y+1/3,z+1/3 -y+2/3,x-y+1/3,z+1/3 -x+y+2/3,-x+1/3,z+1/3 x-y+2/3,-y+1/3,-z+1/3 -x+2/3,-x+y+1/3,-z+1/3 y+2/3,x+1/3,-z+1/3 N 16mer self-complementary RNA duplex with L-U 1 N N 2 N N covale 1.601 both A A 5 A O3' A 5 1_555 A LCA 6 A P LCA 6 1_555 covale 1.605 one A LCA 6 A O3' LCA 6 1_555 A G 7 A P G 7 1_555 covale 1.604 both A C 10 A O3' C 10 1_555 A 0U 11 A P 0U 11 1_555 covale 1.604 both A 0U 11 A O3' 0U 11 1_555 A U 12 A P U 12 1_555 hydrog WATSON-CRICK A A 1 A N1 A 1 1_555 A U 16 A N3 U 16 4_555 hydrog WATSON-CRICK A A 1 A N6 A 1 1_555 A U 16 A O4 U 16 4_555 hydrog WATSON-CRICK A G 2 A N1 G 2 1_555 A C 15 A N3 C 15 4_555 hydrog WATSON-CRICK A G 2 A N2 G 2 1_555 A C 15 A O2 C 15 4_555 hydrog WATSON-CRICK A G 2 A O6 G 2 1_555 A C 15 A N4 C 15 4_555 hydrog WATSON-CRICK A A 3 A N1 A 3 1_555 A U 14 A N3 U 14 4_555 hydrog WATSON-CRICK A A 3 A N6 A 3 1_555 A U 14 A O4 U 14 4_555 hydrog WATSON-CRICK A G 4 A N1 G 4 1_555 A C 13 A N3 C 13 4_555 hydrog WATSON-CRICK A G 4 A N2 G 4 1_555 A C 13 A O2 C 13 4_555 hydrog WATSON-CRICK A G 4 A O6 G 4 1_555 A C 13 A N4 C 13 4_555 hydrog WATSON-CRICK A A 5 A N1 A 5 1_555 A U 12 A N3 U 12 4_555 hydrog WATSON-CRICK A A 5 A N6 A 5 1_555 A U 12 A O4 U 12 4_555 hydrog WATSON-CRICK A LCA 6 A N1 LCA 6 1_555 A 0U 11 A N3 0U 11 4_555 hydrog WATSON-CRICK A LCA 6 A N6 LCA 6 1_555 A 0U 11 A O4 0U 11 4_555 hydrog WATSON-CRICK A G 7 A N1 G 7 1_555 A C 10 A N3 C 10 4_555 hydrog WATSON-CRICK A G 7 A N2 G 7 1_555 A C 10 A O2 C 10 4_555 hydrog WATSON-CRICK A G 7 A O6 G 7 1_555 A C 10 A N4 C 10 4_555 hydrog WATSON-CRICK A A 8 A N1 A 8 1_555 A U 9 A N3 U 9 4_555 hydrog WATSON-CRICK A A 8 A N6 A 8 1_555 A U 9 A O4 U 9 4_555 hydrog WATSON-CRICK A U 9 A N3 U 9 1_555 A A 8 A N1 A 8 4_555 hydrog WATSON-CRICK A U 9 A O4 U 9 1_555 A A 8 A N6 A 8 4_555 hydrog WATSON-CRICK A C 10 A N3 C 10 1_555 A G 7 A N1 G 7 4_555 hydrog WATSON-CRICK A C 10 A N4 C 10 1_555 A G 7 A O6 G 7 4_555 hydrog WATSON-CRICK A C 10 A O2 C 10 1_555 A G 7 A N2 G 7 4_555 hydrog WATSON-CRICK A 0U 11 A N3 0U 11 1_555 A LCA 6 A N1 LCA 6 4_555 hydrog WATSON-CRICK A 0U 11 A O4 0U 11 1_555 A LCA 6 A N6 LCA 6 4_555 hydrog WATSON-CRICK A U 12 A N3 U 12 1_555 A A 5 A N1 A 5 4_555 hydrog WATSON-CRICK A U 12 A O4 U 12 1_555 A A 5 A N6 A 5 4_555 hydrog WATSON-CRICK A C 13 A N3 C 13 1_555 A G 4 A N1 G 4 4_555 hydrog WATSON-CRICK A C 13 A N4 C 13 1_555 A G 4 A O6 G 4 4_555 hydrog WATSON-CRICK A C 13 A O2 C 13 1_555 A G 4 A N2 G 4 4_555 hydrog WATSON-CRICK A U 14 A N3 U 14 1_555 A A 3 A N1 A 3 4_555 hydrog WATSON-CRICK A U 14 A O4 U 14 1_555 A A 3 A N6 A 3 4_555 hydrog WATSON-CRICK A C 15 A N3 C 15 1_555 A G 2 A N1 G 2 4_555 hydrog WATSON-CRICK A C 15 A N4 C 15 1_555 A G 2 A O6 G 2 4_555 hydrog WATSON-CRICK A C 15 A O2 C 15 1_555 A G 2 A N2 G 2 4_555 hydrog WATSON-CRICK A U 16 A N3 U 16 1_555 A A 1 A N1 A 1 4_555 hydrog WATSON-CRICK A U 16 A O4 U 16 1_555 A A 1 A N6 A 1 4_555 RNA Nonenzymatic RNA replication, Chirality, RNA 36LL PDB 1 1 36LL 1 16 36LL 1 16 36LL A 1 1 16 155 H 3 2 R 3 2"