0.025800 0.000000 0.000000 0.000000 0.024963 0.000000 0.000000 0.000000 0.029647 0.00000 0.00000 0.00000 Yuan, H. Quintana, J. Dickerson, R.E. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 8 90.00 90.00 90.00 38.760 40.060 33.730 Ca 2 40.078 CALCIUM ION 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 H2 O 18.015 WATER non-polymer N 1 N CA N 2 N O N 3 N P N 4 N O N 5 N O N 6 N O N 7 N C N 8 R C N 9 N O N 10 S C N 11 N O N 12 N C 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 O N 39 N P N 40 N O N 41 N O N 42 N O N 43 N C N 44 R C N 45 N O N 46 S C N 47 N O N 48 N C N 49 R C N 50 N N N 51 N C N 52 N O N 53 N N N 54 N C N 55 N N N 56 N C N 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 N C N 83 R C Y 84 N N Y 85 N C Y 86 N N Y 87 N C N 88 N C N 89 N O N 90 N N N 91 N C N 92 N N N 93 N N Y 94 N C 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 O N 110 N P N 111 N O N 112 N O N 113 N O N 114 N C N 115 R C N 116 N O N 117 S C N 118 N O N 119 N C N 120 R C N 121 N N N 122 N C N 123 N O N 124 N N N 125 N C N 126 N O N 127 N C N 128 N C N 129 N C 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 H N 145 N O N 146 N H N 147 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 US Biochemistry BICHAW 0033 0006-2960 31 8009 8021 10.1021/bi00149a035 1510987 Alternative structures for alternating poly(dA-dT) tracts: the structure of the B-DNA decamer C-G-A-T-A-T-A-T-C-G. 1992 US J.Biol.Chem. JBCHA3 0071 0021-9258 266 8861 8883 The Structure of B-Helical C-G-A-T-C-G-A-T-C-G and Comparison with C-C-A-A-C-G-T-T-G-G. The Effect of Base Pair Reversals 1991 UK J.Mol.Biol. JMOBAK 0070 0022-2836 217 201 214 Analysis of Local Helix Geometry in Three B-DNA Decamers and Eight Dodecamers 1991 10.2210/pdb1d56/pdb pdb_00001d56 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 273.00 1 DIFFRACTOMETER RIGAKU AFC-5R x-ray 1 1.0 ROTATING ANODE 3044.017 DNA (5'-D(*CP*GP*AP*TP*AP*TP*AP*TP*CP*G)-3') 2 syn polymer 40.078 CALCIUM ION 1 syn non-polymer 18.015 water 94 nat water no no (DC)(DG)(DA)(DT)(DA)(DT)(DA)(DT)(DC)(DG) CGATATATCG A,B polydeoxyribonucleotide n n n n n n n n n n 2.15 42.81 VAPOR DIFFUSION, SITTING DROP 6.90 pH 6.90, VAPOR DIFFUSION, SITTING DROP, temperature 277.00K 277.00 WATER 1 MPD 1 CA ACETATE 1 SPERMINE_HCL 1 WATER 2 MPD 2 3.502 1 19 A 1 B 20 2.115 A_DC1:DG20_B 1 -2.400 0.222 0.179 -0.238 12.241 1 19 A 2 B 19 -0.674 A_DG2:DC19_B 2 -12.644 -0.144 0.209 -0.311 0.421 1 20 A 3 B 18 -0.734 A_DA3:DT18_B 3 -14.344 0.214 -0.171 -0.023 11.515 1 20 A 4 B 17 2.032 A_DT4:DA17_B 4 -15.116 -0.150 -0.146 -0.202 -3.202 1 20 A 5 B 16 1.539 A_DA5:DT16_B 5 -2.096 0.229 0.179 -0.075 2.755 1 20 A 6 B 15 1.264 A_DT6:DA15_B 6 -5.760 -0.181 -0.110 -0.153 2.729 1 20 A 7 B 14 -4.685 A_DA7:DT14_B 7 -15.697 0.243 0.161 -0.265 4.069 1 20 A 8 B 13 2.465 A_DT8:DA13_B 8 -16.757 0.029 -0.143 -0.196 -6.878 1 19 A 9 B 12 -5.389 A_DC9:DG12_B 9 -11.518 0.322 0.206 -0.275 0.814 1 19 A 10 B 11 0.015 A_DG10:DC11_B 10 5.205 -0.328 0.013 -0.002 3.213 34.808 A A 1 2 -1.535 B B 20 19 3.245 -0.918 -0.544 0.808 AA_DC1DG2:DC19DG20_BB 1 0.636 -1.063 34.791 1.488 1.005 3.666 42.833 A A 2 3 -5.608 B B 19 18 3.663 -4.088 0.229 -0.125 AA_DG2DA3:DT18DC19_BB 2 2.207 -3.027 42.592 0.287 -0.066 2.943 30.190 A A 3 4 5.481 B B 18 17 3.026 2.851 0.699 -0.566 AA_DA3DT4:DA17DT18_BB 3 -0.747 1.436 30.049 -1.617 -1.480 3.646 42.383 A A 4 5 0.393 B B 17 16 3.648 0.284 -0.017 0.070 AA_DT4DA5:DT16DA17_BB 4 -1.844 2.551 42.344 0.064 -0.186 3.006 23.620 A A 5 6 16.367 B B 16 15 3.251 6.593 -0.317 -0.177 AA_DA5DT6:DA15DT16_BB 5 3.128 -7.765 22.480 -2.590 1.797 3.351 46.332 A A 6 7 -5.061 B B 15 14 3.417 -3.974 -0.665 1.175 AA_DT6DA7:DT14DA15_BB 6 -3.696 4.708 46.031 1.843 0.519 3.275 31.945 A A 7 8 -6.139 B B 14 13 3.225 -3.367 0.466 -0.352 AA_DA7DT8:DA13DT14_BB 7 3.317 -6.048 31.603 -0.030 -0.247 3.548 40.981 A A 8 9 1.763 B B 13 12 3.554 1.233 -0.085 -0.103 AA_DT8DC9:DG12DA13_BB 8 -2.463 3.520 40.893 -0.294 -0.170 3.231 36.813 A A 9 10 0.236 B B 12 11 3.189 0.149 0.694 0.880 AA_DC9DG10:DC11DG12_BB 9 2.499 -3.960 36.731 1.373 -0.766 chem_comp_atom chem_comp_bond database_2 pdbx_struct_conn_angle struct_conn struct_site repository Initial release Version format compliance Version format compliance Data collection Database references Derived calculations 1 0 1992-09-15 1 1 2008-05-22 1 2 2011-07-13 1 3 2024-02-07 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_struct_conn_angle.ptnr1_auth_asym_id _pdbx_struct_conn_angle.ptnr1_auth_seq_id _pdbx_struct_conn_angle.ptnr1_label_asym_id _pdbx_struct_conn_angle.ptnr3_auth_asym_id _pdbx_struct_conn_angle.ptnr3_auth_seq_id _pdbx_struct_conn_angle.ptnr3_label_asym_id _pdbx_struct_conn_angle.value _struct_conn.pdbx_dist_value _struct_conn.ptnr2_auth_asym_id _struct_conn.ptnr2_auth_seq_id _struct_conn.ptnr2_label_asym_id _struct_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id BNL Y NDB 1992-02-19 REL REL CA CALCIUM ION HOH water OC7 21 2 CA CA 21 A HOH 22 3 HOH HOH 22 A HOH 23 3 HOH HOH 23 A HOH 25 3 HOH HOH 25 A HOH 26 3 HOH HOH 26 A HOH 27 3 HOH HOH 27 A HOH 28 3 HOH HOH 28 A HOH 30 3 HOH HOH 30 A HOH 33 3 HOH HOH 33 A HOH 35 3 HOH HOH 35 A HOH 37 3 HOH HOH 37 A HOH 38 3 HOH HOH 38 A HOH 40 3 HOH HOH 40 A HOH 41 3 HOH HOH 41 A HOH 44 3 HOH HOH 44 A HOH 46 3 HOH HOH 46 A HOH 47 3 HOH HOH 47 A HOH 51 3 HOH HOH 51 A HOH 52 3 HOH HOH 52 A HOH 53 3 HOH HOH 53 A HOH 55 3 HOH HOH 55 A HOH 57 3 HOH HOH 57 A HOH 59 3 HOH HOH 59 A HOH 60 3 HOH HOH 60 A HOH 62 3 HOH HOH 62 A HOH 65 3 HOH HOH 65 A HOH 68 3 HOH HOH 68 A HOH 69 3 HOH HOH 69 A HOH 70 3 HOH HOH 70 A HOH 72 3 HOH HOH 72 A HOH 73 3 HOH HOH 73 A HOH 74 3 HOH HOH 74 A HOH 75 3 HOH HOH 75 A HOH 76 3 HOH HOH 76 A HOH 77 3 HOH HOH 77 A HOH 78 3 HOH HOH 78 A HOH 80 3 HOH HOH 80 A HOH 82 3 HOH HOH 82 A HOH 83 3 HOH HOH 83 A HOH 84 3 HOH HOH 84 A HOH 89 3 HOH HOH 89 A HOH 92 3 HOH HOH 92 A HOH 93 3 HOH HOH 93 A HOH 94 3 HOH HOH 94 A HOH 96 3 HOH HOH 96 A HOH 98 3 HOH HOH 98 A HOH 99 3 HOH HOH 99 A HOH 101 3 HOH HOH 101 A HOH 103 3 HOH HOH 103 A OC7 21 3 HOH HOH 109 A OC7 21 3 HOH HOH 110 A OC7 21 3 HOH HOH 111 A OC7 21 3 HOH HOH 112 A OC7 21 3 HOH HOH 113 A OC7 21 3 HOH HOH 115 A HOH 24 3 HOH HOH 24 B HOH 29 3 HOH HOH 29 B HOH 31 3 HOH HOH 31 B HOH 32 3 HOH HOH 32 B HOH 34 3 HOH HOH 34 B HOH 36 3 HOH HOH 36 B HOH 39 3 HOH HOH 39 B HOH 42 3 HOH HOH 42 B HOH 43 3 HOH HOH 43 B HOH 45 3 HOH HOH 45 B HOH 48 3 HOH HOH 48 B HOH 49 3 HOH HOH 49 B HOH 50 3 HOH HOH 50 B HOH 54 3 HOH HOH 54 B HOH 56 3 HOH HOH 56 B HOH 58 3 HOH HOH 58 B HOH 61 3 HOH HOH 61 B HOH 63 3 HOH HOH 63 B HOH 64 3 HOH HOH 64 B HOH 66 3 HOH HOH 66 B HOH 67 3 HOH HOH 67 B HOH 71 3 HOH HOH 71 B HOH 79 3 HOH HOH 79 B HOH 81 3 HOH HOH 81 B HOH 85 3 HOH HOH 85 B HOH 86 3 HOH HOH 86 B HOH 87 3 HOH HOH 87 B HOH 88 3 HOH HOH 88 B HOH 90 3 HOH HOH 90 B HOH 91 3 HOH HOH 91 B HOH 95 3 HOH HOH 95 B HOH 97 3 HOH HOH 97 B HOH 100 3 HOH HOH 100 B HOH 102 3 HOH HOH 102 B HOH 104 3 HOH HOH 104 B HOH 105 3 HOH HOH 105 B HOH 106 3 HOH HOH 106 B HOH 107 3 HOH HOH 107 B HOH 108 3 HOH HOH 108 B OC7 21 3 HOH HOH 114 B C 1 n 1 DC 1 A G 2 n 2 DG 2 A A 3 n 3 DA 3 A T 4 n 4 DT 4 A A 5 n 5 DA 5 A T 6 n 6 DT 6 A A 7 n 7 DA 7 A T 8 n 8 DT 8 A C 9 n 9 DC 9 A G 10 n 10 DG 10 A C 11 n 1 DC 11 B G 12 n 2 DG 12 B A 13 n 3 DA 13 B T 14 n 4 DT 14 B A 15 n 5 DA 15 B T 16 n 6 DT 16 B A 17 n 7 DA 17 B T 18 n 8 DT 18 B C 19 n 9 DC 19 B G 20 n 10 DG 20 B author_defined_assembly 2 dimeric A HOH 109 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 110 D O HOH 1_555 92.1 A HOH 109 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 111 D O HOH 1_555 80.3 A HOH 110 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 111 D O HOH 1_555 74.0 A HOH 109 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 112 D O HOH 1_555 86.2 A HOH 110 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 112 D O HOH 1_555 172.0 A HOH 111 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 112 D O HOH 1_555 98.0 A HOH 109 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 113 D O HOH 1_555 65.4 A HOH 110 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 113 D O HOH 1_555 102.1 A HOH 111 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 113 D O HOH 1_555 145.5 A HOH 112 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 113 D O HOH 1_555 84.3 A HOH 109 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 115 D O HOH 1_555 132.5 A HOH 110 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 115 D O HOH 1_555 95.7 A HOH 111 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 115 D O HOH 1_555 146.6 A HOH 112 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 115 D O HOH 1_555 91.3 A HOH 113 D O HOH 1_555 A CA 21 C CA CA 1_555 A HOH 115 D O HOH 1_555 67.1 A HOH 109 D O HOH 1_555 A CA 21 C CA CA 1_555 B HOH 114 E O HOH 1_555 156.8 A HOH 110 D O HOH 1_555 A CA 21 C CA CA 1_555 B HOH 114 E O HOH 1_555 84.9 A HOH 111 D O HOH 1_555 A CA 21 C CA CA 1_555 B HOH 114 E O HOH 1_555 76.7 A HOH 112 D O HOH 1_555 A CA 21 C CA CA 1_555 B HOH 114 E O HOH 1_555 93.6 A HOH 113 D O HOH 1_555 A CA 21 C CA CA 1_555 B HOH 114 E O HOH 1_555 137.7 A HOH 115 D O HOH 1_555 A CA 21 C CA CA 1_555 B HOH 114 E O HOH 1_555 70.6 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 -4.80 0.80 109.40 104.60 A A A O5' C5' C4' DC DC DC 1 1 1 N 1 3.79 0.30 108.30 112.09 A A A O4' C1' N1 DC DC DC 1 1 1 N 1 -6.12 0.80 109.40 103.28 A A A O5' C5' C4' DG DG DG 2 2 2 N 1 -11.88 1.60 120.90 109.02 A A A P O5' C5' DG DG DG 2 2 2 N 1 3.21 0.50 111.50 114.71 A A A C5 C6 N1 DG DG DG 2 2 2 N 1 13.31 1.20 119.70 133.01 A A A C3' O3' P DG DG DA 2 2 3 Y 1 4.00 0.60 118.60 122.60 A A A C6 N1 C2 DA DA DA 3 3 3 N 1 -3.50 0.50 117.70 114.20 A A A C5 C6 N1 DA DA DA 3 3 3 N 1 5.41 0.60 118.60 124.01 A A A N1 C6 N6 DA DA DA 3 3 3 N 1 -6.97 0.80 109.40 102.43 A A A O5' C5' C4' DT DT DT 4 4 4 N 1 3.83 0.60 114.60 118.43 A A A N1 C2 N3 DT DT DT 4 4 4 N 1 -4.93 0.60 127.20 122.27 A A A C2 N3 C4 DT DT DT 4 4 4 N 1 3.86 0.60 115.20 119.06 A A A N3 C4 C5 DT DT DT 4 4 4 N 1 -5.18 0.80 109.40 104.22 A A A O5' C5' C4' DA DA DA 5 5 5 N 1 -3.17 0.50 129.30 126.13 A A A N1 C2 N3 DA DA DA 5 5 5 N 1 -5.84 0.80 102.40 96.56 A A A C3' C2' C1' DT DT DT 6 6 6 N 1 3.24 0.30 108.30 111.54 A A A O4' C1' N1 DT DT DT 6 6 6 N 1 -6.32 0.60 127.20 120.88 A A A C2 N3 C4 DT DT DT 6 6 6 N 1 5.36 0.60 115.20 120.56 A A A N3 C4 C5 DT DT DT 6 6 6 N 1 -4.88 0.60 119.90 115.02 A A A N3 C4 O4 DT DT DT 6 6 6 N 1 3.87 0.60 118.60 122.47 A A A C6 N1 C2 DA DA DA 7 7 7 N 1 -3.11 0.50 117.70 114.59 A A A C5 C6 N1 DA DA DA 7 7 7 N 1 3.99 0.60 118.60 122.59 A A A N1 C6 N6 DA DA DA 7 7 7 N 1 10.68 1.20 119.70 130.38 A A A C3' O3' P DA DA DT 7 7 8 Y 1 -6.17 0.80 109.40 103.23 A A A O5' C5' C4' DT DT DT 8 8 8 N 1 11.94 1.20 119.70 131.64 A A A C3' O3' P DT DT DC 8 8 9 Y 1 -6.14 0.80 109.40 103.26 A A A O5' C5' C4' DC DC DC 9 9 9 N 1 3.20 0.50 119.90 123.10 A A A C2 N3 C4 DC DC DC 9 9 9 N 1 -4.67 0.60 125.10 120.43 A A A C6 N1 C2 DG DG DG 10 10 10 N 1 3.63 0.50 111.50 115.13 A A A C5 C6 N1 DG DG DG 10 10 10 N 1 -6.00 0.80 102.40 96.40 B B B C3' C2' C1' DC DC DC 11 11 11 N 1 -7.05 0.80 109.40 102.35 B B B O5' C5' C4' DG DG DG 12 12 12 N 1 9.67 1.20 119.70 129.36 B B B C3' O3' P DG DG DA 12 12 13 Y 1 3.74 0.60 118.60 122.34 B B B C6 N1 C2 DA DA DA 13 13 13 N 1 -3.32 0.50 129.30 125.98 B B B N1 C2 N3 DA DA DA 13 13 13 N 1 8.25 1.20 119.70 127.95 B B B C3' O3' P DA DA DT 13 13 14 Y 1 -9.77 0.80 109.40 99.63 B B B O5' C5' C4' DT DT DT 14 14 14 N 1 4.45 0.60 114.60 119.05 B B B N1 C2 N3 DT DT DT 14 14 14 N 1 -5.34 0.60 127.20 121.86 B B B C2 N3 C4 DT DT DT 14 14 14 N 1 3.93 0.60 115.20 119.13 B B B N3 C4 C5 DT DT DT 14 14 14 N 1 -5.00 0.70 108.00 103.00 B B B O4' C1' N9 DA DA DA 15 15 15 N 1 -6.23 0.80 109.40 103.17 B B B O5' C5' C4' DT DT DT 16 16 16 N 1 -6.46 0.80 102.40 95.94 B B B C3' C2' C1' DT DT DT 16 16 16 N 1 2.94 0.30 108.30 111.24 B B B O4' C1' N1 DT DT DT 16 16 16 N 1 -5.76 0.60 127.20 121.44 B B B C2 N3 C4 DT DT DT 16 16 16 N 1 4.64 0.60 115.20 119.84 B B B N3 C4 C5 DT DT DT 16 16 16 N 1 -4.63 0.60 119.90 115.27 B B B N3 C4 O4 DT DT DT 16 16 16 N 1 9.16 1.20 110.70 119.86 B B B O5' P OP1 DA DA DA 17 17 17 N 1 -2.78 0.40 104.50 101.72 B B B O4' C4' C3' DA DA DA 17 17 17 N 1 -7.53 1.00 110.10 102.57 B B B C1' O4' C4' DA DA DA 17 17 17 N 1 -3.32 0.50 129.30 125.98 B B B N1 C2 N3 DA DA DA 17 17 17 N 1 4.33 0.60 118.60 122.93 B B B N1 C6 N6 DA DA DA 17 17 17 N 1 9.22 1.20 119.70 128.92 B B B C3' O3' P DA DA DT 17 17 18 Y 1 -9.43 1.50 119.60 110.17 B B B OP1 P OP2 DT DT DT 18 18 18 N 1 -5.53 0.80 109.40 103.87 B B B O5' C5' C4' DT DT DT 18 18 18 N 1 16.28 1.20 119.70 135.98 B B B C3' O3' P DT DT DC 18 18 19 Y 1 -2.82 0.40 121.90 119.08 B B B N3 C4 C5 DC DC DC 19 19 19 N 1 2.38 0.30 108.30 110.68 B B B O4' C1' N9 DG DG DG 20 20 20 N 1 -4.07 0.60 125.10 121.03 B B B C6 N1 C2 DG DG DG 20 20 20 N 1 3.84 0.50 111.50 115.34 B B B C5 C6 N1 DG DG DG 20 20 20 N 1 A A O4' C1' DT DT 4 4 0.071 0.011 1.420 1.491 N 1 A A O4' C4' DT DT 4 4 -0.063 0.010 1.446 1.383 N 1 A A O4' C1' DA DA 5 5 0.070 0.011 1.420 1.490 N 1 A A C4 O4 DT DT 6 6 0.054 0.009 1.228 1.282 N 1 A A C5' C4' DC DC 9 9 0.051 0.007 1.512 1.563 N 1 A A C2' C1' DC DC 9 9 -0.065 0.010 1.518 1.453 N 1 A A O4' C1' DC DC 9 9 0.091 0.011 1.420 1.511 N 1 A A O4' C4' DC DC 9 9 -0.091 0.010 1.446 1.355 N 1 B B C2' C1' DA DA 13 13 -0.063 0.010 1.518 1.455 N 1 B B O4' C1' DA DA 13 13 0.070 0.011 1.420 1.490 N 1 B B O4' C1' DT DT 14 14 0.091 0.011 1.420 1.511 N 1 B B O4' C4' DT DT 14 14 -0.070 0.010 1.446 1.376 N 1 B B C6 N6 DA DA 15 15 -0.048 0.008 1.335 1.287 N 1 B B C2' C1' DA DA 17 17 -0.079 0.010 1.518 1.439 N 1 B B O4' C1' DA DA 17 17 0.070 0.011 1.420 1.490 N 1 B B N1 C2 DA DA 17 17 0.057 0.009 1.339 1.396 N 1 A B O O HOH HOH 25 90 1.52 1_555 4_455 0.1780000 1.700 8.000 3683 1 2.000 TR isotropic TR isotropic 1.700 8.000 87 499 8 404 0 fix fix 1.700 8.000 1D56 6166 3683 2.000 1 refinement NUCLSQ ALTERNATIVE STRUCTURES FOR ALTERNATING POLY(DA-DT) TRACTS: THE STRUCTURE OF THE B-DNA DECAMER C-G-A-T-A-T-A-T-C-G 1 N N 1 N N 2 N N 3 N N 3 N N metalc 2.411 A CA 21 C CA CA 1_555 A HOH 109 D O HOH 1_555 metalc 2.366 A CA 21 C CA CA 1_555 A HOH 110 D O HOH 1_555 metalc 2.393 A CA 21 C CA CA 1_555 A HOH 111 D O HOH 1_555 metalc 2.448 A CA 21 C CA CA 1_555 A HOH 112 D O HOH 1_555 metalc 2.440 A CA 21 C CA CA 1_555 A HOH 113 D O HOH 1_555 metalc 2.374 A CA 21 C CA CA 1_555 A HOH 115 D O HOH 1_555 metalc 2.399 A CA 21 C CA CA 1_555 B HOH 114 E O HOH 1_555 hydrog WATSON-CRICK A DC 1 A N3 DC 1 1_555 B DG 20 B N1 DG 10 1_555 hydrog WATSON-CRICK A DC 1 A N4 DC 1 1_555 B DG 20 B O6 DG 10 1_555 hydrog WATSON-CRICK A DC 1 A O2 DC 1 1_555 B DG 20 B N2 DG 10 1_555 hydrog WATSON-CRICK A DG 2 A N1 DG 2 1_555 B DC 19 B N3 DC 9 1_555 hydrog WATSON-CRICK A DG 2 A N2 DG 2 1_555 B DC 19 B O2 DC 9 1_555 hydrog WATSON-CRICK A DG 2 A O6 DG 2 1_555 B DC 19 B N4 DC 9 1_555 hydrog WATSON-CRICK A DA 3 A N1 DA 3 1_555 B DT 18 B N3 DT 8 1_555 hydrog WATSON-CRICK A DA 3 A N6 DA 3 1_555 B DT 18 B O4 DT 8 1_555 hydrog WATSON-CRICK A DT 4 A N3 DT 4 1_555 B DA 17 B N1 DA 7 1_555 hydrog WATSON-CRICK A DT 4 A O4 DT 4 1_555 B DA 17 B N6 DA 7 1_555 hydrog WATSON-CRICK A DA 5 A N1 DA 5 1_555 B DT 16 B N3 DT 6 1_555 hydrog WATSON-CRICK A DA 5 A N6 DA 5 1_555 B DT 16 B O4 DT 6 1_555 hydrog WATSON-CRICK A DT 6 A N3 DT 6 1_555 B DA 15 B N1 DA 5 1_555 hydrog WATSON-CRICK A DT 6 A O4 DT 6 1_555 B DA 15 B N6 DA 5 1_555 hydrog WATSON-CRICK A DA 7 A N1 DA 7 1_555 B DT 14 B N3 DT 4 1_555 hydrog WATSON-CRICK A DA 7 A N6 DA 7 1_555 B DT 14 B O4 DT 4 1_555 hydrog WATSON-CRICK A DT 8 A N3 DT 8 1_555 B DA 13 B N1 DA 3 1_555 hydrog WATSON-CRICK A DT 8 A O4 DT 8 1_555 B DA 13 B N6 DA 3 1_555 hydrog WATSON-CRICK A DC 9 A N3 DC 9 1_555 B DG 12 B N1 DG 2 1_555 hydrog WATSON-CRICK A DC 9 A N4 DC 9 1_555 B DG 12 B O6 DG 2 1_555 hydrog WATSON-CRICK A DC 9 A O2 DC 9 1_555 B DG 12 B N2 DG 2 1_555 hydrog WATSON-CRICK A DG 10 A N1 DG 10 1_555 B DC 11 B N3 DC 1 1_555 hydrog WATSON-CRICK A DG 10 A N2 DG 10 1_555 B DC 11 B O2 DC 1 1_555 hydrog WATSON-CRICK A DG 10 A O6 DG 10 1_555 B DC 11 B N4 DC 1 1_555 DNA B-DNA, DOUBLE HELIX, DNA 1D56 PDB 1 1D56 1 10 1D56 1 10 1D56 A 1 1 10 11 20 1D56 11 20 1D56 B 1 1 10 BINDING SITE FOR RESIDUE CA A 21 A CA 21 Software 7 A HOH 109 D HOH 7 1_555 A HOH 110 D HOH 7 1_555 A HOH 111 D HOH 7 1_555 A HOH 112 D HOH 7 1_555 A HOH 113 D HOH 7 1_555 A HOH 115 D HOH 7 1_555 B HOH 114 E HOH 7 1_555 19 P 21 21 21