0.017498 0.000000 0.000000 0.000000 0.017498 0.000000 0.000000 0.000000 0.022967 0.00000 0.00000 0.00000 Xiong, Y. Sundaralingam, M. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 8 90.0 90.0 90.0 57.15 57.15 43.54 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 Ca 2 40.078 CALCIUM ION non-polymer C10 H14 N5 O8 P 363.221 y GUANOSINE-5'-MONOPHOSPHATE RNA linking H2 O 18.015 WATER non-polymer 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 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 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 R C N 49 N O N 50 R C N 51 N N N 52 N C N 53 N O N 54 N N N 55 N C N 56 N N N 57 N C N 58 N C 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 H N 73 N CA 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 O N 113 N H N 114 N H N 115 N O N 116 N P N 117 N O N 118 N O N 119 N O N 120 N C N 121 R C N 122 N O N 123 S C N 124 N O N 125 R C N 126 N O N 127 R C N 128 N N N 129 N C N 130 N O N 131 N N N 132 N C N 133 N O N 134 N C N 135 N C 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 H N 146 N H N 147 N H N 148 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 sing N 117 N sing N 118 N sing N 119 N sing N 120 N doub 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 sing N 142 N sing N 143 N sing N 144 N doub N 145 N sing N 146 N sing N 147 N sing N 148 N doub N 149 N sing N 150 N doub N 151 N sing N 152 N sing UK RNA RNARFU 2122 1355-8382 6 1316 1324 10.1017/S135583820000090X 10999608 Two crystal forms of helix II of Xenopus laevis 5S rRNA with a cytosine bulge. 2000 10.2210/pdb1dqf/pdb pdb_00001dqf 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 263 1 IMAGE PLATE RIGAKU RAXIS IIC SINGLE WAVELENGTH M x-ray 1 1.5418 1.0 1.5418 ROTATING ANODE RIGAKU RU300 2806.735 RNA (5'-R(*GP*CP*CP*AP*CP*CP*CP*UP*G)-3') HELIX II OF 5S RRNA 1 syn polymer 3231.988 RNA (5'-R(*CP*AP*GP*GP*GP*UP*CP*GP*GP*C)-3') 1 syn polymer 40.078 CALCIUM ION 2 syn non-polymer 18.015 water 38 nat water no no GCCACCCUG GCCACCCUG A polyribonucleotide no no CAGGGUCGGC CAGGGUCGGC B polyribonucleotide n n n n n n n n n n n n n n n n n n n 1 2.94 58.21 VAPOR DIFFUSION, HANGING DROP 6.0 MGCL2, CACL2, CACODYLATE, MPD, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K 298 MGCL2 1 CACL2 1 CACODYLATE 1 MPD 1 MPD 2 11.945 1 19 A 1 B 19 1.508 A_G1:C19_B 1 -12.477 -0.448 0.549 -0.147 10.886 1 19 A 2 B 18 1.853 A_C2:G18_B 2 -13.820 0.362 0.018 -0.150 6.954 1 19 A 3 B 17 -0.708 A_C3:G17_B 3 -10.273 0.248 -0.144 -0.401 7.747 1 20 A 4 B 15 -2.155 A_A4:U15_B 4 -9.525 0.363 0.191 -0.402 12.344 1 19 A 5 B 14 -1.511 A_C5:G14_B 5 -14.323 0.657 -0.031 -0.634 4.483 1 19 A 6 B 13 2.366 A_C6:G13_B 6 -11.154 0.117 -0.088 -0.447 3.139 1 19 A 7 B 12 0.187 A_C7:G12_B 7 -8.227 0.247 -0.141 -0.290 0.373 1 20 A 8 B 11 2.182 A_U8:A11_B 8 -12.010 -0.149 -0.086 -0.385 -7.880 1 19 A 9 B 10 6.108 A_G9:C10_B 9 -13.675 -0.569 0.042 -0.002 -2.556 B 16 B 18 64.865 B_C16:G18_B 10 -3.697 0.163 0.198 3.099 -2.556 B 16 B 18 64.865 B_C16:G18_B 11 -3.697 0.163 0.198 3.099 3.236 35.568 A A 1 2 4.508 B B 19 18 3.359 2.751 -0.863 -1.410 AA_G1C2:G18C19_BB 1 0.306 -0.501 35.463 -2.713 1.457 2.631 32.681 A A 2 3 14.715 B B 18 17 3.254 8.196 0.340 -2.130 AA_C2C3:G17G18_BB 2 -0.404 0.726 31.661 -5.083 -0.668 2.903 38.929 A A 3 4 9.252 B B 17 15 3.270 6.128 0.385 -1.722 AA_C3A4:U15G17_BB 3 -4.745 7.164 38.179 -3.292 -1.126 2.996 38.314 A A 4 5 8.428 B B 15 14 3.185 5.513 0.100 -1.153 AA_A4C5:G14U15_BB 4 0.914 -1.397 37.920 -2.412 -0.044 3.135 28.290 A A 5 6 10.676 B B 14 13 3.516 5.190 -0.296 -1.815 AA_C5C6:G13G14_BB 5 -0.284 0.585 27.818 -4.947 0.539 2.836 32.382 A A 6 7 14.454 B B 13 12 3.361 7.981 -0.276 -1.805 AA_C6C7:G12G13_BB 6 -0.969 1.755 31.394 -4.591 0.331 2.874 31.988 A A 7 8 13.219 B B 12 11 3.287 7.224 0.518 -1.569 AA_C7U8:A11G12_BB 7 0.915 -1.675 31.170 -4.094 -0.782 3.010 30.275 A A 8 9 15.413 B B 11 10 3.552 7.953 0.329 -1.696 AA_U8G9:C10A11_BB 8 2.065 -4.001 29.164 -4.891 -0.203 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 Atomic model Data collection Database references Derived calculations 1 0 2000-11-13 1 1 2008-04-27 1 2 2011-07-13 1 3 2011-11-16 1 4 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_comp_id _pdbx_struct_conn_angle.ptnr1_auth_seq_id _pdbx_struct_conn_angle.ptnr1_label_asym_id _pdbx_struct_conn_angle.ptnr1_label_atom_id _pdbx_struct_conn_angle.ptnr1_label_comp_id _pdbx_struct_conn_angle.ptnr1_label_seq_id _pdbx_struct_conn_angle.ptnr1_symmetry _pdbx_struct_conn_angle.ptnr3_auth_asym_id _pdbx_struct_conn_angle.ptnr3_auth_comp_id _pdbx_struct_conn_angle.ptnr3_auth_seq_id _pdbx_struct_conn_angle.ptnr3_label_asym_id _pdbx_struct_conn_angle.ptnr3_label_atom_id _pdbx_struct_conn_angle.ptnr3_label_comp_id _pdbx_struct_conn_angle.ptnr3_label_seq_id _pdbx_struct_conn_angle.ptnr3_symmetry _pdbx_struct_conn_angle.value _struct_conn.pdbx_dist_value _struct_conn.ptnr1_auth_asym_id _struct_conn.ptnr1_auth_comp_id _struct_conn.ptnr1_auth_seq_id _struct_conn.ptnr1_label_asym_id _struct_conn.ptnr1_label_atom_id _struct_conn.ptnr1_label_comp_id _struct_conn.ptnr1_label_seq_id _struct_conn.ptnr1_symmetry _struct_conn.ptnr2_auth_asym_id _struct_conn.ptnr2_auth_comp_id _struct_conn.ptnr2_auth_seq_id _struct_conn.ptnr2_label_asym_id _struct_conn.ptnr2_label_atom_id _struct_conn.ptnr2_label_comp_id _struct_conn.ptnr2_label_seq_id _struct_conn.ptnr2_symmetry _struct_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id RCSB Y RCSB 2000-01-04 REL REL CA CALCIUM ION HOH water CA 201 3 CA CA 201 B CA 202 3 CA CA 202 B WAT 102 4 HOH HOH 102 A WAT 113 4 HOH HOH 113 A WAT 114 4 HOH HOH 114 A WAT 115 4 HOH HOH 115 A WAT 123 4 HOH HOH 123 A WAT 124 4 HOH HOH 124 A WAT 125 4 HOH HOH 125 A WAT 127 4 HOH HOH 127 A WAT 128 4 HOH HOH 128 A WAT 132 4 HOH HOH 132 A WAT 134 4 HOH HOH 134 A WAT 137 4 HOH HOH 137 A WAT 101 4 HOH HOH 101 B WAT 103 4 HOH HOH 103 B WAT 104 4 HOH HOH 104 B WAT 105 4 HOH HOH 105 B WAT 106 4 HOH HOH 106 B WAT 107 4 HOH HOH 107 B WAT 108 4 HOH HOH 108 B WAT 109 4 HOH HOH 109 B WAT 110 4 HOH HOH 110 B WAT 111 4 HOH HOH 111 B WAT 112 4 HOH HOH 112 B WAT 116 4 HOH HOH 116 B WAT 117 4 HOH HOH 117 B WAT 118 4 HOH HOH 118 B WAT 119 4 HOH HOH 119 B WAT 120 4 HOH HOH 120 B WAT 121 4 HOH HOH 121 B WAT 122 4 HOH HOH 122 B WAT 126 4 HOH HOH 126 B WAT 129 4 HOH HOH 129 B WAT 130 4 HOH HOH 130 B WAT 131 4 HOH HOH 131 B WAT 133 4 HOH HOH 133 B WAT 135 4 HOH HOH 135 B WAT 136 4 HOH HOH 136 B WAT 138 4 HOH HOH 138 B G 1 n 1 G 1 A C 2 n 2 C 2 A C 3 n 3 C 3 A A 4 n 4 A 4 A C 5 n 5 C 5 A C 6 n 6 C 6 A C 7 n 7 C 7 A U 8 n 8 U 8 A G 9 n 9 G 9 A C 10 n 1 C 10 B A 11 n 2 A 11 B G 12 n 3 G 12 B G 13 n 4 G 13 B G 14 n 5 G 14 B U 15 n 6 U 15 B C 16 n 7 C 16 B G 17 n 8 G 17 B G 18 n 9 G 18 B C 19 n 10 C 19 B author_defined_assembly 2 dimeric A U 8 A OP1 U 8 5_645 B CA 201 C CA CA 1_555 B C 19 B O3' C 10 1_555 100.6 A U 8 A OP1 U 8 5_645 B CA 201 C CA CA 1_555 B C 19 B O2' C 10 1_555 83.6 B C 19 B O3' C 10 1_555 B CA 201 C CA CA 1_555 B C 19 B O2' C 10 1_555 72.1 A U 8 A OP1 U 8 5_645 B CA 201 C CA CA 1_555 B HOH 101 F O HOH 1_555 91.6 B C 19 B O3' C 10 1_555 B CA 201 C CA CA 1_555 B HOH 101 F O HOH 1_555 74.9 B C 19 B O2' C 10 1_555 B CA 201 C CA CA 1_555 B HOH 101 F O HOH 1_555 145.1 A U 8 A OP1 U 8 5_645 B CA 201 C CA CA 1_555 B HOH 105 F O HOH 1_555 164.2 B C 19 B O3' C 10 1_555 B CA 201 C CA CA 1_555 B HOH 105 F O HOH 1_555 89.7 B C 19 B O2' C 10 1_555 B CA 201 C CA CA 1_555 B HOH 105 F O HOH 1_555 88.3 B HOH 101 F O HOH 1_555 B CA 201 C CA CA 1_555 B HOH 105 F O HOH 1_555 102.8 A U 8 A OP1 U 8 5_645 B CA 201 C CA CA 1_555 B HOH 106 F O HOH 1_555 82.3 B C 19 B O3' C 10 1_555 B CA 201 C CA CA 1_555 B HOH 106 F O HOH 1_555 143.2 B C 19 B O2' C 10 1_555 B CA 201 C CA CA 1_555 B HOH 106 F O HOH 1_555 71.8 B HOH 101 F O HOH 1_555 B CA 201 C CA CA 1_555 B HOH 106 F O HOH 1_555 141.9 B HOH 105 F O HOH 1_555 B CA 201 C CA CA 1_555 B HOH 106 F O HOH 1_555 82.2 A U 8 A OP1 U 8 5_645 B CA 201 C CA CA 1_555 B HOH 120 F O HOH 1_555 101.1 B C 19 B O3' C 10 1_555 B CA 201 C CA CA 1_555 B HOH 120 F O HOH 1_555 142.2 B C 19 B O2' C 10 1_555 B CA 201 C CA CA 1_555 B HOH 120 F O HOH 1_555 141.0 B HOH 101 F O HOH 1_555 B CA 201 C CA CA 1_555 B HOH 120 F O HOH 1_555 73.9 B HOH 105 F O HOH 1_555 B CA 201 C CA CA 1_555 B HOH 120 F O HOH 1_555 76.9 B HOH 106 F O HOH 1_555 B CA 201 C CA CA 1_555 B HOH 120 F O HOH 1_555 70.5 A G 9 A OP1 G 9 5_645 B CA 202 D CA CA 1_555 A G 9 A OP1 G 9 3_645 102.9 A G 9 A OP1 G 9 5_645 B CA 202 D CA CA 1_555 B C 19 B OP1 C 10 1_555 90.3 A G 9 A OP1 G 9 3_645 B CA 202 D CA CA 1_555 B C 19 B OP1 C 10 1_555 98.2 A G 9 A OP1 G 9 5_645 B CA 202 D CA CA 1_555 B C 19 B OP1 C 10 8_666 98.2 A G 9 A OP1 G 9 3_645 B CA 202 D CA CA 1_555 B C 19 B OP1 C 10 8_666 90.3 B C 19 B OP1 C 10 1_555 B CA 202 D CA CA 1_555 B C 19 B OP1 C 10 8_666 166.4 A G 9 A OP1 G 9 5_645 B CA 202 D CA CA 1_555 B HOH 107 F O HOH 1_555 168.2 A G 9 A OP1 G 9 3_645 B CA 202 D CA CA 1_555 B HOH 107 F O HOH 1_555 88.0 B C 19 B OP1 C 10 1_555 B CA 202 D CA CA 1_555 B HOH 107 F O HOH 1_555 83.6 B C 19 B OP1 C 10 8_666 B CA 202 D CA CA 1_555 B HOH 107 F O HOH 1_555 86.1 A G 9 A OP1 G 9 5_645 B CA 202 D CA CA 1_555 B HOH 107 F O HOH 8_666 88.0 A G 9 A OP1 G 9 3_645 B CA 202 D CA CA 1_555 B HOH 107 F O HOH 8_666 168.2 B C 19 B OP1 C 10 1_555 B CA 202 D CA CA 1_555 B HOH 107 F O HOH 8_666 86.1 B C 19 B OP1 C 10 8_666 B CA 202 D CA CA 1_555 B HOH 107 F O HOH 8_666 83.6 B HOH 107 F O HOH 1_555 B CA 202 D CA CA 1_555 B HOH 107 F O HOH 8_666 81.6 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 B CA 202 D CA 1 B HOH 122 F HOH 1 B G 14 0.073 SIDE CHAIN 0.2210000 0.2040000 0.2040000 2.2 10.0 404 3962 3757 8.5 94.9 RANDOM 1 THROUGHOUT 2.0 MOLECULAR REPLACEMENT CNS 2.2 10.0 38 439 2 399 0 0.008 1.26 2.2 25.57 1DQF 3962 3757 2.0 1.0 0.0770000 1 14 5.6 94.8 phasing AMoRE refinement CNS 0.9 data reduction DENZO data scaling SCALEPACK CRYSTAL STRUCTURE OF HELIX II OF THE X. LAEVIS SOMATIC 5S RRNA WITH A CYTOSINE BULGE IN TWO CONFORMATIONS 1 N N 2 N N 3 N N 3 N N 4 N N 4 N N metalc 2.437 A U 8 A OP1 U 8 5_645 B CA 201 C CA CA 1_555 metalc 2.166 A G 9 A OP1 G 9 5_645 B CA 202 D CA CA 1_555 metalc 2.166 A G 9 A OP1 G 9 3_645 B CA 202 D CA CA 1_555 metalc 2.361 B C 19 B O3' C 10 1_555 B CA 201 C CA CA 1_555 metalc 2.643 B C 19 B O2' C 10 1_555 B CA 201 C CA CA 1_555 metalc 2.253 B C 19 B OP1 C 10 1_555 B CA 202 D CA CA 1_555 metalc 2.253 B C 19 B OP1 C 10 8_666 B CA 202 D CA CA 1_555 metalc 2.493 B HOH 101 F O HOH 1_555 B CA 201 C CA CA 1_555 metalc 2.217 B HOH 105 F O HOH 1_555 B CA 201 C CA CA 1_555 metalc 2.323 B HOH 106 F O HOH 1_555 B CA 201 C CA CA 1_555 metalc 2.287 B HOH 107 F O HOH 1_555 B CA 202 D CA CA 1_555 metalc 2.287 B HOH 107 F O HOH 8_666 B CA 202 D CA CA 1_555 metalc 2.304 B HOH 120 F O HOH 1_555 B CA 201 C CA CA 1_555 hydrog WATSON-CRICK A G 1 A N1 G 1 1_555 B C 19 B N3 C 10 1_555 hydrog WATSON-CRICK A G 1 A N2 G 1 1_555 B C 19 B O2 C 10 1_555 hydrog WATSON-CRICK A G 1 A O6 G 1 1_555 B C 19 B N4 C 10 1_555 hydrog WATSON-CRICK A C 2 A N3 C 2 1_555 B G 18 B N1 G 9 1_555 hydrog WATSON-CRICK A C 2 A N4 C 2 1_555 B G 18 B O6 G 9 1_555 hydrog WATSON-CRICK A C 2 A O2 C 2 1_555 B G 18 B N2 G 9 1_555 hydrog WATSON-CRICK A C 3 A N3 C 3 1_555 B G 17 B N1 G 8 1_555 hydrog WATSON-CRICK A C 3 A N4 C 3 1_555 B G 17 B O6 G 8 1_555 hydrog WATSON-CRICK A C 3 A O2 C 3 1_555 B G 17 B N2 G 8 1_555 hydrog WATSON-CRICK A A 4 A N1 A 4 1_555 B U 15 B N3 U 6 1_555 hydrog WATSON-CRICK A A 4 A N6 A 4 1_555 B U 15 B O4 U 6 1_555 hydrog WATSON-CRICK A C 5 A N3 C 5 1_555 B G 14 B N1 G 5 1_555 hydrog WATSON-CRICK A C 5 A N4 C 5 1_555 B G 14 B O6 G 5 1_555 hydrog WATSON-CRICK A C 5 A O2 C 5 1_555 B G 14 B N2 G 5 1_555 hydrog WATSON-CRICK A C 6 A N3 C 6 1_555 B G 13 B N1 G 4 1_555 hydrog WATSON-CRICK A C 6 A N4 C 6 1_555 B G 13 B O6 G 4 1_555 hydrog WATSON-CRICK A C 6 A O2 C 6 1_555 B G 13 B N2 G 4 1_555 hydrog WATSON-CRICK A C 7 A N3 C 7 1_555 B G 12 B N1 G 3 1_555 hydrog WATSON-CRICK A C 7 A N4 C 7 1_555 B G 12 B O6 G 3 1_555 hydrog WATSON-CRICK A C 7 A O2 C 7 1_555 B G 12 B N2 G 3 1_555 hydrog WATSON-CRICK A U 8 A N3 U 8 1_555 B A 11 B N1 A 2 1_555 hydrog WATSON-CRICK A U 8 A O4 U 8 1_555 B A 11 B N6 A 2 1_555 hydrog WATSON-CRICK A G 9 A N1 G 9 1_555 B C 10 B N3 C 1 1_555 hydrog WATSON-CRICK A G 9 A N2 G 9 1_555 B C 10 B O2 C 1 1_555 hydrog WATSON-CRICK A G 9 A O6 G 9 1_555 B C 10 B N4 C 1 1_555 hydrog C-G PAIR B C 16 B N4 C 7 1_555 B G 18 B O6 G 9 7_556 hydrog G-C PAIR B G 18 B O6 G 9 1_555 B C 16 B N4 C 7 7_556 RNA DOUBLE HELIX, CYTOSINE BULGE, RNA 1DQF PDB 1 1DQF 1DQF PDB 2 1DQF 1 9 1DQF 1 9 1DQF A 1 1 9 10 19 1DQF 10 19 1DQF B 2 1 10 BINDING SITE FOR RESIDUE CA B 201 B CA 201 Software 6 BINDING SITE FOR RESIDUE CA B 202 B CA 202 Software 6 A U 8 A U 8 6 5_645 B C 19 B C 10 6 1_555 B HOH 101 F HOH 6 1_555 B HOH 105 F HOH 6 1_555 B HOH 106 F HOH 6 1_555 B HOH 120 F HOH 6 1_555 A G 9 A G 9 6 5_645 A G 9 A G 9 6 3_645 B C 19 B C 10 6 8_666 B C 19 B C 10 6 1_555 B HOH 107 F HOH 6 1_555 B HOH 107 F HOH 6 8_666 94 tetragonal P 42 21 2