1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Lin, C.H. Patel, D.J. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 1 90.00 90.00 90.00 1.000 1.000 1.000 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 C26 H27 N3 O8 509.508 4-HYDROXY-2,8-DIMETHYL-1-OXO-6-(4,5,6-TRIMETHOXY-1H-INDOLE-2-CARBONYL)-1,2,3,6,7,8-HEXAHYDRO-3,6-DIAZA-AS-INDACENE-2-CARBOXYLIC ACID METHYL ESTER DUOCARMYCIN A 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 N C N 12 R C Y 13 N N Y 14 N C Y 15 N N Y 16 N C Y 17 N C N 18 N N Y 19 N N Y 20 N C Y 21 N N Y 22 N C 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 H N 36 N H N 37 N O N 38 N P N 39 N O N 40 N O N 41 N O N 42 N C N 43 R C N 44 N O N 45 S C N 46 N O N 47 N C N 48 R C N 49 N N N 50 N C N 51 N O N 52 N N N 53 N C N 54 N N N 55 N C N 56 N C N 57 N H 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 O N 72 N P N 73 N O N 74 N O N 75 N O N 76 N C N 77 R C N 78 N O N 79 S C N 80 N O N 81 N C N 82 R C Y 83 N N Y 84 N C Y 85 N N Y 86 N C N 87 N C N 88 N O N 89 N N N 90 N C N 91 N N N 92 N N Y 93 N C 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 O N 109 N P N 110 N O N 111 N O N 112 N O N 113 N C N 114 R C N 115 N O N 116 S C N 117 N O N 118 N C N 119 R C N 120 N N N 121 N C N 122 N O N 123 N N N 124 N C N 125 N O N 126 N C N 127 N C N 128 N C N 129 N H N 130 N H 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 N N 145 R C N 146 N C Y 147 N C Y 148 N C Y 149 N C Y 150 N C Y 151 N C Y 152 N C N 153 N C N 154 S C N 155 N C N 156 N N N 157 N C Y 158 N C Y 159 N C Y 160 N C Y 161 N C Y 162 N C Y 163 N C Y 164 N C Y 165 N C Y 166 N N N 167 N O N 168 N C N 169 N O N 170 N C N 171 N O N 172 N C N 173 N O N 174 N O N 175 N O N 176 N C N 177 N C N 178 N O N 179 N O N 180 N C N 181 N H N 182 N H N 183 N H 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 N 197 N H N 198 N H N 199 N H N 200 N H N 201 N H N 202 N H N 203 N H N 204 N H N 205 N H N 206 N H N 207 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 Y 24 N sing Y 25 N sing Y 26 N doub N 27 N sing Y 28 N sing Y 29 N sing Y 30 N doub N 31 N sing Y 32 N doub N 33 N sing N 34 N sing Y 35 N sing Y 36 N doub N 37 N sing Y 38 N sing N 39 N sing N 40 N sing N 41 N doub 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 N 60 N sing N 61 N sing N 62 N sing N 63 N sing N 64 N doub N 65 N sing N 66 N doub N 67 N sing N 68 N sing N 69 N sing N 70 N sing N 71 N doub N 72 N sing N 73 N sing N 74 N sing N 75 N sing N 76 N doub N 77 N sing 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 Y 97 N sing Y 98 N sing Y 99 N doub N 100 N sing Y 101 N sing N 102 N sing Y 103 N doub N 104 N doub N 105 N sing N 106 N sing N 107 N sing N 108 N sing N 109 N doub N 110 N sing N 111 N sing N 112 N sing N 113 N sing N 114 N sing N 115 N doub 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 doub N 139 N sing N 140 N sing N 141 N sing N 142 N doub N 143 N sing N 144 N sing N 145 N doub 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 doub Y 158 N doub Y 159 N sing Y 160 N sing Y 161 N doub N 162 N sing Y 163 N sing N 164 N sing Y 165 N doub 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 doub Y 180 N doub Y 181 N sing Y 182 N sing N 183 N sing Y 184 N doub Y 185 N sing Y 186 N sing N 187 N sing Y 188 N doub N 189 N sing Y 190 N sing N 191 N sing Y 192 N doub N 193 N sing Y 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 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 doub N 213 N sing N 214 N sing N 215 N sing N 216 N sing N 217 N sing UK J.Mol.Biol. JMOBAK 0070 0022-2836 248 162 179 10.1006/jmbi.1995.0209 7731041 Solution structure of the covalent duocarmycin A-DNA duplex complex. 1995 10.2210/pdb107d/pdb pdb_0000107d 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 2039.359 DNA (5'-D(*CP*CP*TP*TP*TP*TP*C)-3') 1 syn polymer 2195.487 DNA (5'-D(*GP*AP*AP*AP*AP*GP*G)-3') 1 syn polymer CHEMICALLY SYNTHESIZED 509.508 4-HYDROXY-2,8-DIMETHYL-1-OXO-6-(4,5,6-TRIMETHOXY-1H-INDOLE-2-CARBONYL)-1,2,3,6,7,8-HEXAHYDRO-3,6-DIAZA-AS-INDACENE-2-CARBOXYLIC ACID METHYL ESTER 1 syn non-polymer DEOXYRIBONUCLEIC ACID DEOXYRIBONUCLEIC ACID no no (DC)(DC)(DT)(DT)(DT)(DT)(DC) CCTTTTC A polydeoxyribonucleotide no no (DG)(DA)(DA)(DA)(DA)(DG)(DG) GAAAAGG B polydeoxyribonucleotide n n n n n n n n n n n n n n 3.839 1 19 A 1 B 14 -0.998 A_DC1:DG14_B 1 -3.256 0.473 -0.285 -0.264 -1.193 1 19 A 2 B 13 -2.815 A_DC2:DG13_B 2 -6.733 0.466 -0.032 -0.220 2.465 1 20 A 3 B 12 -9.859 A_DT3:DA12_B 3 -14.247 -0.679 -0.275 0.151 7.883 1 20 A 4 B 11 6.447 A_DT4:DA11_B 4 -27.323 -0.233 -0.064 -0.117 -3.567 1 20 A 5 B 10 7.911 A_DT5:DA10_B 5 -26.784 -0.126 -0.100 -0.207 -4.502 1 20 A 6 B 9 -4.255 A_DT6:DA9_B 6 -6.098 0.217 0.212 -0.131 5.168 1 19 A 7 B 8 -0.701 A_DC7:DG8_B 7 -10.630 0.738 -0.343 -0.307 3.569 37.417 A A 1 2 -1.446 B B 14 13 3.455 -0.926 -1.346 -0.311 AA_DC1DC2:DG13DG14_BB 1 -3.521 5.497 37.246 -0.354 1.601 3.243 31.573 A A 2 3 -1.450 B B 13 12 3.278 -0.783 0.360 1.543 AA_DC2DT3:DA12DG13_BB 2 6.643 -12.297 30.874 2.983 0.582 2.841 33.878 A A 3 4 3.588 B B 12 11 2.871 2.089 0.726 -0.148 AA_DT3DT4:DA11DA12_BB 3 -0.712 1.222 33.808 -0.548 -1.347 3.283 43.317 A A 4 5 -4.675 B B 11 10 3.313 -3.434 0.440 0.652 AA_DT4DT5:DA10DA11_BB 4 6.797 -9.252 42.674 1.223 0.077 3.160 33.642 A A 5 6 1.362 B B 10 9 3.157 0.788 -0.207 -0.127 AA_DT5DT6:DA9DA10_BB 5 -1.785 3.085 33.587 -0.344 0.076 2.984 41.194 A A 6 7 -0.786 B B 9 8 2.847 -0.551 1.084 0.046 AA_DT6DC7:DG8DA9_BB 6 6.945 -9.914 40.626 0.119 -0.868 database_2 pdbx_database_status pdbx_struct_assembly pdbx_struct_oper_list struct_site chem_comp_atom chem_comp_bond entity pdbx_entity_src_syn repository Initial release Version format compliance Version format compliance Database references Derived calculations Other Data collection Source and taxonomy Structure summary 1 0 1995-05-08 1 1 2008-03-24 1 2 2011-07-13 1 3 2022-02-16 1 4 2024-03-13 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_database_status.process_site _struct_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id _entity.details Y BNL 1995-01-17 REL DUO 4-HYDROXY-2,8-DIMETHYL-1-OXO-6-(4,5,6-TRIMETHOXY-1H-INDOLE-2-CARBONYL)-1,2,3,6,7,8-HEXAHYDRO-3,6-DIAZA-AS-INDACENE-2-CARBOXYLIC ACID METHYL ESTER CHEMICALLY SYNTHESIZED sample CHEMICALLY SYNTHESIZED sample DUOCARMYCIN A WAS PROVIDED BY KYOWA HAKKO KOGYO CO., JAPAN. 4 TWO STARTING STRUCTURES WERE GENERATED BY MANUALLY DOCKING THE DRUG ONTO A- AND B-FORM DNA USING INSIGHT II AND WERE SUBSEQUENTLY REFINED BY DISTANCE-RESTRAINED MOLECULAR DYNAMICS USING A SET OF INTER-PROTON DISTANCE RESTRAINTS DERIVED FROM THE 2-D NMR DATA. ONE INITIAL VELOCITY SEED WAS USED FOR EACH STARTING STRUCTURE WHICH YIELDS TWO DISTANCE-REFINED STRUCTURES. THEY WERE REFINED FURTHER WITH TWO INITIAL VELOCITIES USING RELAXATION-MATRIX BASED NOE INTENSITY-RESTRAINED MOLECULAR DYNAMICS TO GENERATE THE FINAL FOUR STRUCTURES. THE FINAL FOUR STRUCTURES WERE OBTAINED BY TAKING THE AVERAGE COORDINATES OF THE LAST 1.0 PS OF THE DYNAMICS DURING RELAXATION MATRIX REFINEMENT AND ENERGY MINIMIZED. THE R(1/6) VALUE WAS USED TO REFINE THE STRUCTURE DURING RELAXATION MATRIX REFINEMENT. THE SUMMATIONS RUN THROUGH ALL OBSERVED, QUANTIFIABLE NOE CROSSPEAKS IN NOESY SPECTRA RECORDED IN D2O AND MIXING TIMES OF 40, 80, 120 AND 160 MS. THE R(1/6) FACTOR AND THE RMS DEVIATIONS FROM IDEAL GEOMETRY FOR THE FOUR FINAL STRUCTURES ARE: MODEL1-MODEL4 R(1/6) FACTOR 0.042-0.045 BOND (ANG) 0.009-0.010 ANGLES (DEG) 3.078-3.780 IMPROPERS (DEG) 0.310-0.321. THE STRUCTURE HAS APPROXIMATE TWO-FOLD SYMMETRY RELATING THE TWO STRANDS OF THE DNA WITH THE SYMMETRY AXIS PERPENDICULAR TO THE HELICAL AXIS. THE TRANSFORMATION MATRIX WAS CALCULATED FOR THE AVERAGED STRUCTURE OF THE FOUR MODELS. MOLECULAR DYNAMICS, MATRIX RELAXATION BRUNGER refinement X-PLOR DUO 15 3 DUO DUO 15 B C 1 n 1 DC 1 A C 2 n 2 DC 2 A T 3 n 3 DT 3 A T 4 n 4 DT 4 A T 5 n 5 DT 5 A T 6 n 6 DT 6 A C 7 n 7 DC 7 A G 8 n 1 DG 8 B A 9 n 2 DA 9 B A 10 n 3 DA 10 B A 11 n 4 DA 11 B A 12 n 5 DA 12 B G 13 n 6 DG 13 B G 14 n 7 DG 14 B author_defined_assembly 2 dimeric 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 B B N3 C10 DA DUO 12 15 1.41 2 B B N3 C10 DA DUO 12 15 1.41 3 B B N3 C10 DA DUO 12 15 1.41 4 B B N3 C10 DA DUO 12 15 1.40 1 -5.54 0.80 105.90 100.36 A A A O4' C1' C2' DC DC DC 1 1 1 N 1 9.35 0.30 108.30 117.65 A A A O4' C1' N1 DC DC DC 1 1 1 N 1 3.95 0.60 118.90 122.85 A A A N1 C2 O2 DC DC DC 2 2 2 N 1 5.10 0.30 108.30 113.40 A A A O4' C1' N1 DT DT DT 3 3 3 N 1 -3.66 0.60 122.90 119.24 A A A C6 C5 C7 DT DT DT 3 3 3 N 1 8.54 1.10 109.80 118.34 A A A C5' C4' O4' DT DT DT 4 4 4 N 1 -3.65 0.60 122.30 118.65 A A A N3 C2 O2 DT DT DT 4 4 4 N 1 -3.95 0.60 122.90 118.95 A A A C6 C5 C7 DT DT DT 4 4 4 N 1 -3.79 0.60 122.90 119.11 A A A C6 C5 C7 DT DT DT 5 5 5 N 1 2.20 0.30 108.30 110.50 A A A O4' C1' N1 DT DT DT 6 6 6 N 1 -3.96 0.60 122.90 118.94 A A A C6 C5 C7 DT DT DT 6 6 6 N 1 1.85 0.30 108.30 110.15 B B B O4' C1' N9 DG DG DG 8 8 8 N 1 5.17 0.30 108.30 113.47 B B B O4' C1' N9 DA DA DA 10 10 10 N 1 -5.18 0.80 105.90 100.72 B B B O4' C1' C2' DA DA DA 12 12 12 N 1 5.89 0.30 108.30 114.19 B B B O4' C1' N9 DA DA DA 12 12 12 N 1 8.46 1.20 119.70 128.16 B B B C3' O3' P DG DG DG 13 13 14 Y 1 5.95 0.30 108.30 114.25 B B B O4' C1' N9 DG DG DG 14 14 14 N 2 -5.16 0.80 105.90 100.74 A A A O4' C1' C2' DC DC DC 1 1 1 N 2 4.40 0.30 108.30 112.70 A A A O4' C1' N1 DC DC DC 1 1 1 N 2 3.77 0.60 106.00 109.77 A A A O4' C4' C3' DC DC DC 2 2 2 N 2 4.24 0.60 118.90 123.14 A A A N1 C2 O2 DC DC DC 2 2 2 N 2 7.54 1.20 119.70 127.24 A A A C3' O3' P DT DT DT 3 3 4 Y 2 -3.72 0.60 122.90 119.18 A A A C6 C5 C7 DT DT DT 4 4 4 N 2 3.82 0.30 108.30 112.12 B B B O4' C1' N9 DA DA DA 10 10 10 N 2 5.75 0.30 108.30 114.05 B B B O4' C1' N9 DA DA DA 12 12 12 N 2 8.07 1.20 119.70 127.77 B B B C3' O3' P DG DG DG 13 13 14 Y 2 4.35 0.30 108.30 112.65 B B B O4' C1' N9 DG DG DG 14 14 14 N 3 -5.27 0.80 105.90 100.63 A A A O4' C1' C2' DC DC DC 1 1 1 N 3 9.94 0.30 108.30 118.24 A A A O4' C1' N1 DC DC DC 1 1 1 N 3 3.63 0.60 118.90 122.53 A A A N1 C2 O2 DC DC DC 2 2 2 N 3 2.74 0.30 108.30 111.04 A A A O4' C1' N1 DT DT DT 3 3 3 N 3 7.43 1.10 109.80 117.23 A A A C5' C4' O4' DT DT DT 4 4 4 N 3 -3.94 0.60 122.90 118.96 A A A C6 C5 C7 DT DT DT 4 4 4 N 3 1.85 0.30 108.30 110.15 B B B O4' C1' N9 DG DG DG 8 8 8 N 3 3.09 0.30 108.30 111.39 B B B O4' C1' N9 DA DA DA 10 10 10 N 3 -6.43 0.80 105.90 99.47 B B B O4' C1' C2' DA DA DA 12 12 12 N 3 6.13 0.30 108.30 114.43 B B B O4' C1' N9 DA DA DA 12 12 12 N 3 8.97 1.20 119.70 128.67 B B B C3' O3' P DG DG DG 13 13 14 Y 3 5.35 0.30 108.30 113.65 B B B O4' C1' N9 DG DG DG 14 14 14 N 4 -4.94 0.80 105.90 100.96 A A A O4' C1' C2' DC DC DC 1 1 1 N 4 4.46 0.30 108.30 112.76 A A A O4' C1' N1 DC DC DC 1 1 1 N 4 3.69 0.60 106.00 109.69 A A A O4' C4' C3' DC DC DC 2 2 2 N 4 4.18 0.60 118.90 123.08 A A A N1 C2 O2 DC DC DC 2 2 2 N 4 7.89 1.20 119.70 127.59 A A A C3' O3' P DT DT DT 3 3 4 Y 4 -3.77 0.60 122.90 119.13 A A A C6 C5 C7 DT DT DT 6 6 6 N 4 3.83 0.60 118.90 122.73 A A A N1 C2 O2 DC DC DC 7 7 7 N 4 8.16 1.20 119.70 127.86 B B B C3' O3' P DG DG DA 8 8 9 Y 4 6.23 0.30 108.30 114.53 B B B O4' C1' N9 DA DA DA 9 9 9 N 4 7.79 1.20 119.70 127.49 B B B C3' O3' P DA DA DA 9 9 10 Y 4 6.20 0.30 108.30 114.50 B B B O4' C1' N9 DA DA DA 10 10 10 N 4 -4.32 0.70 102.20 97.88 B B B C4' C3' C2' DA DA DA 12 12 12 N 4 -5.81 0.80 105.90 100.09 B B B O4' C1' C2' DA DA DA 12 12 12 N 4 2.24 0.30 108.30 110.54 B B B O4' C1' N9 DA DA DA 12 12 12 N 4 7.92 1.20 119.70 127.62 B B B C3' O3' P DG DG DG 13 13 14 Y 4 4.10 0.30 108.30 112.40 B B B O4' C1' N9 DG DG DG 14 14 14 N 1 A A C5 C7 DT DT 5 5 0.041 0.006 1.496 1.537 N 2 A A C5 C7 DT DT 3 3 0.038 0.006 1.496 1.534 N 2 A A C5 C7 DT DT 4 4 0.037 0.006 1.496 1.533 N 2 A A C5 C7 DT DT 5 5 0.048 0.006 1.496 1.544 N 2 A A C5 C7 DT DT 6 6 0.036 0.006 1.496 1.532 N 4 A A C5 C7 DT DT 3 3 0.040 0.006 1.496 1.536 N 4 A A C5 C7 DT DT 5 5 0.039 0.006 1.496 1.535 N model building X-PLOR refinement X-PLOR phasing X-PLOR SOLUTION STRUCTURE OF THE COVALENT DUOCARMYCIN A-DNA DUPLEX COMPLEX 1 N N 2 N N 3 N N hydrog WATSON-CRICK A DC 1 A N3 DC 1 1_555 B DG 14 B N1 DG 7 1_555 hydrog WATSON-CRICK A DC 1 A N4 DC 1 1_555 B DG 14 B O6 DG 7 1_555 hydrog WATSON-CRICK A DC 1 A O2 DC 1 1_555 B DG 14 B N2 DG 7 1_555 hydrog WATSON-CRICK A DC 2 A N3 DC 2 1_555 B DG 13 B N1 DG 6 1_555 hydrog WATSON-CRICK A DC 2 A N4 DC 2 1_555 B DG 13 B O6 DG 6 1_555 hydrog WATSON-CRICK A DC 2 A O2 DC 2 1_555 B DG 13 B N2 DG 6 1_555 hydrog WATSON-CRICK A DT 3 A N3 DT 3 1_555 B DA 12 B N1 DA 5 1_555 hydrog WATSON-CRICK A DT 3 A O4 DT 3 1_555 B DA 12 B N6 DA 5 1_555 hydrog WATSON-CRICK A DT 4 A N3 DT 4 1_555 B DA 11 B N1 DA 4 1_555 hydrog WATSON-CRICK A DT 4 A O4 DT 4 1_555 B DA 11 B N6 DA 4 1_555 hydrog WATSON-CRICK A DT 5 A N3 DT 5 1_555 B DA 10 B N1 DA 3 1_555 hydrog WATSON-CRICK A DT 5 A O4 DT 5 1_555 B DA 10 B N6 DA 3 1_555 hydrog WATSON-CRICK A DT 6 A N3 DT 6 1_555 B DA 9 B N1 DA 2 1_555 hydrog WATSON-CRICK A DT 6 A O4 DT 6 1_555 B DA 9 B N6 DA 2 1_555 hydrog WATSON-CRICK A DC 7 A N3 DC 7 1_555 B DG 8 B N1 DG 1 1_555 hydrog WATSON-CRICK A DC 7 A N4 DC 7 1_555 B DG 8 B O6 DG 1 1_555 hydrog WATSON-CRICK A DC 7 A O2 DC 7 1_555 B DG 8 B N2 DG 1 1_555 DNA DNA, DOUBLE HELIX 107D PDB 1 107D 107D PDB 2 107D 1 7 107D 1 7 107D A 1 1 7 8 14 107D 8 14 107D B 2 1 7 BINDING SITE FOR RESIDUE DUO B 15 B DUO 15 Software 9 A DT 4 A DT 4 9 1_555 A DT 5 A DT 5 9 1_555 A DT 6 A DT 6 9 1_555 A DC 7 A DC 7 9 1_555 B DA 10 B DA 3 9 1_555 B DA 11 B DA 4 9 1_555 B DA 12 B DA 5 9 1_555 B DG 13 B DG 6 9 1_555 B DG 14 B DG 7 9 1_555 1 P 1