1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 0000-0002-5397-9481 D'Souza, V.D. 0000-0001-5985-5714 Balskus, E.P. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic C11 H16 F N5 O6 P 1 364.247 [(2~{R},3~{R},4~{S},5~{R})-5-(6-azanyl-3-methyl-purin-9-yl)-4-fluoranyl-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate non-polymer C35 H39 N9 O6 S2 745.871 N-({4-[(2R)-2-amino-2-{4-[(2-{(4Z)-2-methyl-4-[(5S)-5-methylpyrrolidin-2-ylidene]-5-oxo-4,5-dihydro-1H-pyrrol-3-yl}acetamido)acetyl]-1,3-thiazol-2-yl}acetyl]-1,3-thiazol-2-yl}methyl)-2-{(4Z)-2-methyl-4-[(5S)-5-methylpyrrolidin-2-ylidene]-5-oxo-4,5-dihydro-1H-pyrrol-3-yl}acetamide non-polymer C10 H14 N5 O6 P 331.222 y 2'-DEOXYADENOSINE-5'-MONOPHOSPHATE DNA linking C9 H14 N3 O7 P 307.197 y 2'-DEOXYCYTIDINE-5'-MONOPHOSPHATE DNA linking C10 H14 N5 O7 P 347.221 y 2'-DEOXYGUANOSINE-5'-MONOPHOSPHATE DNA linking C10 H15 N2 O8 P 322.208 y THYMIDINE-5'-MONOPHOSPHATE DNA linking Y 1 N C Y 2 N C Y 3 N C Y 4 N C N 5 N P N 6 N O N 7 N O N 8 N O Y 9 N N Y 10 N N N 11 N C Y 12 N N N 13 N N Y 14 N N Y 15 N C N 16 N F N 17 S C N 18 N C N 19 R C N 20 N O N 21 R C N 22 R C N 23 N O 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 H N 39 N O N 40 N H N 41 N N N 42 N N N 43 N C N 44 N C N 45 N N N 46 N C N 47 N O N 48 N C N 49 N C N 50 N C N 51 N C N 52 S C N 53 N C N 54 N N N 55 N C N 56 N C N 57 N C N 58 N O N 59 N N N 60 N C N 61 N C N 62 N O Y 63 N C Y 64 N N Y 65 N C Y 66 N S Y 67 N C N 68 N C N 69 N N N 70 N C N 71 N O Y 72 N C Y 73 N C Y 74 N C Y 75 N N Y 76 N S N 77 N C N 78 N C N 79 N N N 80 N C N 81 N O N 82 N C N 83 N C N 84 N C N 85 N C N 86 S C N 87 N C N 88 N C N 89 N C N 90 N C N 91 N O 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 H N 108 N H N 109 N H N 110 N H N 111 N H N 112 N H N 113 N H N 114 N H N 115 N H N 116 N H N 117 N H N 118 N H N 119 N H N 120 N H N 121 N H N 122 N H N 123 N H N 124 N H N 125 N H N 126 N H N 127 N H N 128 N H N 129 N H N 130 N H N 131 N H N 132 N O N 133 N P N 134 N O N 135 N O N 136 N O N 137 N C N 138 R C N 139 N O N 140 S C N 141 N O N 142 N C N 143 R C Y 144 N N Y 145 N C Y 146 N N Y 147 N C Y 148 N C N 149 N N Y 150 N N Y 151 N C Y 152 N N Y 153 N C 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 H N 161 N H N 162 N H N 163 N H N 164 N H N 165 N H N 166 N H N 167 N H N 168 N O N 169 N P N 170 N O N 171 N O N 172 N O N 173 N C N 174 R C N 175 N O N 176 S C N 177 N O N 178 N C N 179 R C N 180 N N N 181 N C N 182 N O N 183 N N N 184 N C N 185 N N N 186 N C N 187 N C 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 N 197 N H N 198 N H N 199 N H N 200 N H N 201 N H N 202 N O N 203 N P N 204 N O N 205 N O N 206 N O N 207 N C N 208 R C N 209 N O N 210 S C N 211 N O N 212 N C N 213 R C Y 214 N N Y 215 N C Y 216 N N Y 217 N C N 218 N C N 219 N O N 220 N N N 221 N C N 222 N N N 223 N N Y 224 N C N 225 N H N 226 N H N 227 N H N 228 N H N 229 N H N 230 N H N 231 N H N 232 N H N 233 N H N 234 N H N 235 N H N 236 N H N 237 N H N 238 N H N 239 N O N 240 N P N 241 N O N 242 N O N 243 N O N 244 N C N 245 R C N 246 N O N 247 S C N 248 N O N 249 N C N 250 R C N 251 N N N 252 N C N 253 N O N 254 N N N 255 N C N 256 N O N 257 N C N 258 N C N 259 N C N 260 N H N 261 N H N 262 N H N 263 N H N 264 N H N 265 N H N 266 N H N 267 N H N 268 N H N 269 N H N 270 N H N 271 N H N 272 N H N 273 N H N 274 N H N 1 N sing N 2 N sing Y 3 N doub Y 4 N sing N 5 N doub N 6 N sing Y 7 N doub Y 8 N sing Y 9 N sing Y 10 N sing N 11 N sing N 12 N sing Y 13 N doub Y 14 N sing N 15 N sing N 16 N sing Y 17 N doub Y 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 sing N 28 N sing N 29 N sing N 30 N sing N 31 N sing N 32 N sing N 33 N sing N 34 N sing N 35 N sing N 36 N sing N 37 N sing N 38 N sing N 39 N sing N 40 N sing N 41 N sing N 42 N sing N 43 N doub 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 Z doub N 52 N sing N 53 N sing N 54 N sing N 55 N doub N 56 N sing N 57 N sing N 58 N doub N 59 N sing N 60 N sing N 61 N sing N 62 N sing N 63 N sing N 64 N doub N 65 N doub N 66 N sing N 67 N sing N 68 N sing N 69 N sing N 70 N sing N 71 Z doub N 72 N doub N 73 N doub N 74 N sing N 75 N sing N 76 N sing N 77 N sing Y 78 N sing Y 79 N doub N 80 N sing N 81 N doub N 82 N sing N 83 N sing Y 84 N doub N 85 N sing Y 86 N doub Y 87 N sing N 88 N sing N 89 N sing Y 90 N sing Y 91 N sing Y 92 N sing N 93 N sing Y 94 N doub N 95 N doub N 96 N sing N 97 N sing N 98 N sing Y 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 sing N 106 N sing N 107 N sing N 108 N sing N 109 N sing N 110 N sing N 111 N sing N 112 N sing N 113 N sing 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 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 doub 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 N 150 N sing N 151 N sing 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 sing N 160 N sing N 161 N sing Y 162 N sing Y 163 N sing Y 164 N doub N 165 N sing Y 166 N sing Y 167 N sing Y 168 N doub N 169 N sing Y 170 N doub N 171 N sing N 172 N sing Y 173 N sing Y 174 N doub N 175 N sing Y 176 N sing N 177 N sing N 178 N sing N 179 N doub 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 sing N 195 N sing N 196 N sing N 197 N sing N 198 N sing N 199 N sing N 200 N sing N 201 N sing N 202 N doub N 203 N sing N 204 N doub N 205 N sing N 206 N sing N 207 N sing N 208 N sing N 209 N doub N 210 N sing N 211 N sing N 212 N sing N 213 N sing N 214 N doub N 215 N sing N 216 N sing N 217 N sing N 218 N sing N 219 N sing N 220 N sing N 221 N sing N 222 N sing N 223 N sing N 224 N sing N 225 N sing N 226 N sing N 227 N sing N 228 N sing N 229 N sing N 230 N sing N 231 N sing N 232 N sing N 233 N sing N 234 N sing Y 235 N sing Y 236 N sing Y 237 N doub N 238 N sing Y 239 N sing N 240 N sing Y 241 N doub N 242 N doub N 243 N sing N 244 N sing N 245 N sing N 246 N sing N 247 N doub N 248 N sing N 249 N sing N 250 N sing N 251 N sing N 252 N sing N 253 N doub N 254 N sing N 255 N sing N 256 N sing N 257 N sing N 258 N sing N 259 N sing N 260 N sing N 261 N sing N 262 N sing N 263 N sing N 264 N sing N 265 N sing N 266 N sing N 267 N sing N 268 N sing N 269 N sing N 270 N sing N 271 N sing N 272 N sing N 273 N sing N 274 N sing N 275 N sing N 276 N doub N 277 N sing N 278 N sing N 279 N sing N 280 N doub N 281 N sing N 282 N sing N 283 N doub N 284 N sing N 285 N sing N 286 N sing N 287 N sing US Science SCIEAS 0038 1095-9203 390 eady3571 eady3571 10.1126/science.ady3571 41343624 The specificity and structure of DNA cross-linking by the gut bacterial genotoxin colibactin. 2025 0000-0001-9134-1246 0000-0001-8001-9534 0009-0009-0345-778X 0000-0002-2537-8371 0000-0001-7677-2902 0009-0001-4096-853X 0000-0001-8445-5368 0000-0001-9342-0191 0000-0002-7686-0504 0000-0002-0067-3083 0000-0002-5397-9481 0000-0001-5985-5714 10.2210/pdb9oso/pdb pdb_00009oso 10.13018/BMR31249 4313.816 DNA-COLIBACTIN 2 man polymer 745.871 N-({4-[(2R)-2-amino-2-{4-[(2-{(4Z)-2-methyl-4-[(5S)-5-methylpyrrolidin-2-ylidene]-5-oxo-4,5-dihydro-1H-pyrrol-3-yl}acetamido)acetyl]-1,3-thiazol-2-yl}acetyl]-1,3-thiazol-2-yl}methyl)-2-{(4Z)-2-methyl-4-[(5S)-5-methylpyrrolidin-2-ylidene]-5-oxo-4,5-dihydro-1H-pyrrol-3-yl}acetamide 1 syn non-polymer no yes (DC)(DG)(DC)(DG)(DA)(A1CEB)(DT)(DA)(DT)(DT)(DC)(DG)(DC)(DG) CGCGAXTATTCGCG A,B polydeoxyribonucleotide n n n n n n n n n n n n n n sample 1 14 562 Escherichia coli 562 Escherichia coli Biological sequence 9.456 1 19 A 101 B 214 0.607 A_DC101:DG214_B 1 8.587 -0.536 -0.022 0.055 17.225 1 19 A 102 B 213 2.292 A_DG102:DC213_B 2 -5.635 -0.919 0.016 -0.222 12.990 1 19 A 103 B 212 2.897 A_DC103:DG212_B 3 -10.917 -0.070 -0.198 0.046 -0.155 1 19 A 104 B 211 2.061 A_DG104:DC211_B 4 -15.023 -0.732 0.124 -0.237 1.218 1 20 A 105 B 210 -4.774 A_DA105:DT210_B 5 -10.048 -0.262 0.733 -0.351 -2.819 1 20 A 107 B 208 3.348 A_DT107:DA208_B 6 -12.774 -0.475 -0.030 -0.064 -21.665 1 20 A 108 B 207 0.659 A_DA108:DT207_B 7 -15.415 0.312 -0.227 -0.008 6.270 1 20 A 110 B 205 -7.876 A_DT110:DA205_B 8 -31.754 -0.312 -0.645 -0.035 -8.100 1 19 A 111 B 204 3.295 A_DC111:DG204_B 9 -17.524 0.696 0.104 -0.245 -17.985 1 19 A 112 B 203 2.467 A_DG112:DC203_B 10 -4.559 0.305 0.141 0.061 -16.251 1 19 A 113 B 202 0.525 A_DC113:DG202_B 11 0.200 0.882 0.325 -0.148 -15.854 1 19 A 114 B 201 0.850 A_DG114:DC201_B 12 -6.079 0.312 0.021 0.085 2.718 32.748 A A 101 102 9.902 B B 214 213 2.884 5.557 -0.183 -0.776 AA_DC101DG102:DC213DG214_BB 1 -0.455 0.810 32.282 -2.202 0.256 3.235 37.761 A A 102 103 6.402 B B 213 212 3.318 4.136 -0.146 -0.589 AA_DG102DC103:DG212DC213_BB 2 0.564 -0.874 37.538 -1.446 0.299 2.689 35.494 A A 103 104 24.612 B B 212 211 3.229 14.571 -0.415 -0.731 AA_DC103DG104:DC211DG212_BB 3 -2.743 4.632 32.340 -3.226 0.300 2.966 39.616 A A 104 105 6.497 B B 211 210 3.005 4.374 -0.410 -0.451 AA_DG104DA105:DT210DC211_BB 4 -6.877 10.215 38.802 -1.138 -0.138 3.049 44.828 A A 107 108 22.130 B B 208 207 3.473 16.517 -0.335 -0.569 AA_DT107DA108:DT207DA208_BB 5 0.270 -0.362 41.820 -2.300 0.465 5.920 59.026 A A 108 110 7.633 B B 207 205 5.963 7.500 -0.937 0.443 AA_DA108DT110:DA205DT207_BB 6 3.216 -3.273 58.509 -0.251 1.252 3.358 42.055 A A 110 111 13.455 B B 205 204 3.593 9.578 0.980 -0.598 AA_DT110DC111:DG204DA205_BB 7 -0.803 1.128 40.991 -1.902 -1.456 2.625 37.208 A A 111 112 21.226 B B 204 203 3.067 13.264 0.165 -0.739 AA_DC111DG112:DC203DG204_BB 8 0.787 -1.260 34.833 -2.748 -0.165 3.171 36.496 A A 112 113 5.389 B B 203 202 3.248 3.371 -0.156 -0.719 AA_DG112DC113:DG202DC203_BB 9 0.107 -0.171 36.345 -1.607 0.263 3.539 36.606 A A 113 114 -10.461 B B 202 201 3.479 -6.524 -0.265 -0.951 AA_DC113DG114:DC201DG202_BB 10 4.232 -6.786 35.798 -0.541 1.053 citation citation_author repository Initial release Database references 1 0 2025-11-19 1 1 2025-12-17 _citation.journal_volume _citation.page_first _citation.page_last _citation.pdbx_database_id_PubMed _citation.title _citation_author.identifier_ORCID _citation_author.name United States National Institutes of Health/National Cancer Institute (NIH/NCI) R01CA208834 United States Howard Hughes Medical Institute (HHMI) 55108516 dsouza@g.harvard.edu 0000-0002-5397-9481 Victoria D'Souza M principal investigator/group leader balskus@chemistry.harvard.edu 0000-0001-5985-5714 Emily Balskus P principal investigator/group leader The specificity and structure of DNA crosslinking by a gut bacterial genotoxin N RCSB N RCSB 2025-05-25 REL REL A1CEB A1CEB SUBJECT OF INVESTIGATION A1CEC A1CEC SUBJECT OF INVESTIGATION A1CEC N-({4-[(2R)-2-amino-2-{4-[(2-{(4Z)-2-methyl-4-[(5S)-5-methylpyrrolidin-2-ylidene]-5-oxo-4,5-dihydro-1H-pyrrol-3-yl}acetamido)acetyl]-1,3-thiazol-2-yl}acetyl]-1,3-thiazol-2-yl}methyl)-2-{(4Z)-2-methyl-4-[(5S)-5-methylpyrrolidin-2-ylidene]-5-oxo-4,5-dihydro-1H-pyrrol-3-yl}acetamide Y N structures with the lowest energy 50 10 isotropic 1 2D 1H-1H NOESY isotropic 1 2D 1H-15N HSQC isotropic 1 2D 1H-13C HSQC isotropic 1 2D 1H-1H NOESY 1.5 ug/uL natural abundance 10 mM natural abundance 10 mM natural abundance 1.5 ug/uL [U-100% 13C; U-100% 15N] 10 mM natural abundance 10 mM natural abundance 1.5 ug/uL [U-100% 13C; U-100% 15N] 10 mM natural abundance 10 mM natural abundance 1.5 ug/uL natural abundance 10 mM natural abundance 10 mM natural abundance 10 mM Tris 10 mM Nacl mM condition_1 8.2 pH 1 bar 278 K simulated annealing 1 lowest energy 1.5 ug/uL DNA-COLIBACTIN, 10 mM TRIS, 10 mM sodium chloride, 90% H2O/10% D2O H_sample-1 90% H2O/10% D2O solution 1.5 ug/uL [U-100% 13C; U-100% 15N] DNA-COLIBACTIN, 10 mM TRIS, 10 mM sodium chloride, 90% H2O/10% D2O 15N_13C_sample 90% H2O/10% D2O solution 1.5 ug/uL [U-100% 13C; U-100% 15N] DNA-COLIBACTIN, 10 mM TRIS, 10 mM sodium chloride, 100% D2O 15N_13C_sample 100% D2O solution 1.5 ug/uL DNA-COLIBACTIN, 10 mM TRIS, 10 mM sodium chloride, 100% D2O H_sample-2 100% D2O solution Guntert, Mumenthaler and Wuthrich structure calculation CYANA Schwieters, Kuszewski, Tjandra and Clore refinement X-PLOR NIH Bruce Johnson chemical shift assignment NMRFx cryoprobe 700 Bruker AVANCE II ADC 306 2 A1CEC A1CEC 301 A DC 101 n 1 DC 101 A DG 102 n 2 DG 102 A DC 103 n 3 DC 103 A DG 104 n 4 DG 104 A DA 105 n 5 DA 105 A ABN 106 n 6 A1CEB 106 A DT 107 n 7 DT 107 A DA 108 n 8 DA 108 A DT 109 n 9 DT 109 A DT 110 n 10 DT 110 A DC 111 n 11 DC 111 A DG 112 n 12 DG 112 A DC 113 n 13 DC 113 A DG 114 n 14 DG 114 A DC 201 n 1 DC 201 B DG 202 n 2 DG 202 B DC 203 n 3 DC 203 B DG 204 n 4 DG 204 B DA 205 n 5 DA 205 B ABN 206 n 6 A1CEB 206 B DT 207 n 7 DT 207 B DA 208 n 8 DA 208 B DT 209 n 9 DT 209 B DT 210 n 10 DT 210 B DC 211 n 11 DC 211 B DG 212 n 12 DG 212 B DC 213 n 13 DC 213 B DG 214 n 14 DG 214 B author_and_software_defined_assembly 2 dimeric not applicable NMR Distance Restraints 1.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0 1.0 1_555 x,y,z identity operation 0.0 0.0 0.0 5 A DA 108 0.054 SIDE CHAIN 7 B DT 209 0.058 SIDE CHAIN 1 1.91 0.30 108.30 110.21 B B B O4' C1' N1 DT DT DT 209 209 209 N 2 2.22 0.30 108.30 110.52 B B B O4' C1' N1 DT DT DT 209 209 209 N 3 1.93 0.30 108.30 110.23 A A A O4' C1' N1 DT DT DT 110 110 110 N 4 1.84 0.30 108.30 110.14 A A A O4' C1' N1 DT DT DT 107 107 107 N 8 2.02 0.30 108.30 110.32 A A A O4' C1' N1 DT DT DT 110 110 110 N 10 1.99 0.30 108.30 110.29 B B B O4' C1' N1 DT DT DT 209 209 209 N N The specificity and structure of DNA crosslinking by a gut bacterial genotoxin 1 N N 1 N N 2 N N covale 1.608 both A DA 105 A O3' DA 5 1_555 A A1CEB 106 A P A1CEB 6 1_555 covale 1.604 both A A1CEB 106 A O3' A1CEB 6 1_555 A DT 107 A P DT 7 1_555 covale 1.620 none A A1CEB 106 A C28 A1CEB 6 1_555 A A1CEC 301 C C27 A1CEC 1_555 covale 1.525 none A A1CEC 301 C C27' A1CEC 1_555 B A1CEB 206 B C28 A1CEB 6 1_555 covale 1.603 both B DA 205 B O3' DA 5 1_555 B A1CEB 206 B P A1CEB 6 1_555 covale 1.612 both B A1CEB 206 B O3' A1CEB 6 1_555 B DT 207 B P DT 7 1_555 hydrog WATSON-CRICK A DC 101 A N3 DC 1 1_555 B DG 214 B N1 DG 14 1_555 hydrog WATSON-CRICK A DC 101 A N4 DC 1 1_555 B DG 214 B O6 DG 14 1_555 hydrog WATSON-CRICK A DC 101 A O2 DC 1 1_555 B DG 214 B N2 DG 14 1_555 hydrog WATSON-CRICK A DG 102 A N1 DG 2 1_555 B DC 213 B N3 DC 13 1_555 hydrog WATSON-CRICK A DG 102 A N2 DG 2 1_555 B DC 213 B O2 DC 13 1_555 hydrog WATSON-CRICK A DG 102 A O6 DG 2 1_555 B DC 213 B N4 DC 13 1_555 hydrog WATSON-CRICK A DC 103 A N3 DC 3 1_555 B DG 212 B N1 DG 12 1_555 hydrog WATSON-CRICK A DC 103 A N4 DC 3 1_555 B DG 212 B O6 DG 12 1_555 hydrog WATSON-CRICK A DC 103 A O2 DC 3 1_555 B DG 212 B N2 DG 12 1_555 hydrog WATSON-CRICK A DG 104 A N1 DG 4 1_555 B DC 211 B N3 DC 11 1_555 hydrog WATSON-CRICK A DG 104 A N2 DG 4 1_555 B DC 211 B O2 DC 11 1_555 hydrog WATSON-CRICK A DG 104 A O6 DG 4 1_555 B DC 211 B N4 DC 11 1_555 hydrog WATSON-CRICK A DA 105 A N1 DA 5 1_555 B DT 210 B N3 DT 10 1_555 hydrog WATSON-CRICK A DA 105 A N6 DA 5 1_555 B DT 210 B O4 DT 10 1_555 hydrog WATSON-CRICK A DT 107 A N3 DT 7 1_555 B DA 208 B N1 DA 8 1_555 hydrog WATSON-CRICK A DT 107 A O4 DT 7 1_555 B DA 208 B N6 DA 8 1_555 hydrog WATSON-CRICK A DA 108 A N1 DA 8 1_555 B DT 207 B N3 DT 7 1_555 hydrog WATSON-CRICK A DA 108 A N6 DA 8 1_555 B DT 207 B O4 DT 7 1_555 hydrog WATSON-CRICK A DT 110 A N3 DT 10 1_555 B DA 205 B N1 DA 5 1_555 hydrog WATSON-CRICK A DT 110 A O4 DT 10 1_555 B DA 205 B N6 DA 5 1_555 hydrog WATSON-CRICK A DC 111 A N3 DC 11 1_555 B DG 204 B N1 DG 4 1_555 hydrog WATSON-CRICK A DC 111 A N4 DC 11 1_555 B DG 204 B O6 DG 4 1_555 hydrog WATSON-CRICK A DC 111 A O2 DC 11 1_555 B DG 204 B N2 DG 4 1_555 hydrog WATSON-CRICK A DG 112 A N1 DG 12 1_555 B DC 203 B N3 DC 3 1_555 hydrog WATSON-CRICK A DG 112 A N2 DG 12 1_555 B DC 203 B O2 DC 3 1_555 hydrog WATSON-CRICK A DG 112 A O6 DG 12 1_555 B DC 203 B N4 DC 3 1_555 hydrog WATSON-CRICK A DC 113 A N3 DC 13 1_555 B DG 202 B N1 DG 2 1_555 hydrog WATSON-CRICK A DC 113 A N4 DC 13 1_555 B DG 202 B O6 DG 2 1_555 hydrog WATSON-CRICK A DC 113 A O2 DC 13 1_555 B DG 202 B N2 DG 2 1_555 hydrog WATSON-CRICK A DG 114 A N1 DG 14 1_555 B DC 201 B N3 DC 1 1_555 hydrog WATSON-CRICK A DG 114 A N2 DG 14 1_555 B DC 201 B O2 DC 1 1_555 hydrog WATSON-CRICK A DG 114 A O6 DG 14 1_555 B DC 201 B N4 DC 1 1_555 DNA DNA 9OSO PDB 1 1 9OSO 101 114 9OSO 101 114 9OSO A 1 1 14 201 214 9OSO 201 214 9OSO B 1 1 14