1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Escaja, N. Gelpi, J.L. Orozco, M. Rico, M. Pedroso, E. Gonzalez, C. 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 US J.Am.Chem.Soc. JACSAT 0004 0002-7863 125 5654 5662 10.1021/ja0344157 12733903 Four-stranded DNA structure stabilized by a novel G:C:A:T tetrad. 2003 US J.Am.Chem.Soc. JACSAT 0004 0002-7863 122 12732 12742 10.1021/ja002778q Dimeric solution structure of two cyclic octamers: Four stranded DNA structures stabilized by A:T:A:T and C:G:C:G tetrads 2000 US J.Am.Chem.Soc. JACSAT 0004 0002-7863 120 2176 2177 10.1021/ja973691g NMR STRUCTURE OF TWO CYCLIC OLIGONUCLEOTIDES. A MONOMER DIMER EQUILIBRIUM BETWEEN DUMBELLL AND QUADRUPLEX STRUCTURES 1998 10.2210/pdb1n96/pdb pdb_00001n96 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 1 SINGLE WAVELENGTH M 1 1.0 2377.579 CYCLIC OLIGONUCLEOTIDE D(CGCTCATT) 2 syn polymer no no (DC)(DG)(DC)(DT)(DC)(DA)(DT)(DT) CGCTCATT A,B polydeoxyribonucleotide n n n n n n n n -0.974 1 19 A 2 B 3 1.316 A_DG2:DC3_B 1 0.121 -0.493 -0.266 -0.223 1.133 1 19 A 3 B 2 -0.488 A_DC3:DG2_B 2 3.539 0.359 -0.306 -0.222 25.473 1 20 A 6 B 7 -0.892 A_DA6:DT7_B 3 -7.659 0.241 0.406 -0.109 -4.870 1 20 A 7 B 6 -7.349 A_DT7:DA6_B 4 -15.899 -0.251 0.871 -0.283 3.004 29.962 A A 2 3 6.995 B B 3 2 3.178 3.608 -0.168 -1.276 AA_DG2DC3:DG2DC3_BB 1 0.237 -0.460 29.748 -3.173 0.371 3.729 36.967 A A 6 7 37.819 B B 7 6 4.388 22.375 -0.608 0.269 AA_DA6DT7:DA6DT7_BB 2 -3.762 6.358 29.379 -3.787 0.251 database_2 pdbx_nmr_software pdbx_struct_assembly pdbx_struct_oper_list struct_conn repository Initial release Version format compliance Version format compliance Data collection Database references Derived calculations 1 0 2003-05-13 1 1 2008-04-28 1 2 2011-07-13 1 3 2022-02-23 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_nmr_software.name _struct_conn.pdbx_leaving_atom_flag _struct_conn.ptnr1_auth_comp_id _struct_conn.ptnr1_auth_seq_id _struct_conn.ptnr1_label_atom_id _struct_conn.ptnr1_label_comp_id _struct_conn.ptnr1_label_seq_id _struct_conn.ptnr2_auth_comp_id _struct_conn.ptnr2_auth_seq_id _struct_conn.ptnr2_label_atom_id _struct_conn.ptnr2_label_comp_id _struct_conn.ptnr2_label_seq_id RCSB Y RCSB 2002-11-22 REL 10 10 2D NOESY DQF-COSY 7.0 1 atm 278 K see references relaxation matrix calculations restrained molecular dynamics 5mM d<pCGCTCATT>, phosphate buffer, 100 mM NaCl 90%H20, 10%D2O 5mM d<pCGCTCATT>, phosphate buffer, 100 mM NaCl 100% D2O T.L. James iterative matrix relaxation MARDIGRAS P. Guntert structure solution DYANA 1.5 D. Pearlman refinement Amber 5.1 600 Bruker DMX C 1 n 1 DC 1 A G 2 n 2 DG 2 A C 3 n 3 DC 3 A T 4 n 4 DT 4 A C 5 n 5 DC 5 A A 6 n 6 DA 6 A T 7 n 7 DT 7 A T 8 n 8 DT 8 A C 1 n 1 DC 1 B G 2 n 2 DG 2 B C 3 n 3 DC 3 B T 4 n 4 DT 4 B C 5 n 5 DC 5 B A 6 n 6 DA 6 B T 7 n 7 DT 7 B T 8 n 8 DT 8 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 6 B C4' DC 5 WRONG HAND 7 B C4' DC 5 WRONG HAND 7 B C3' DC 5 WRONG HAND 8 B C4' DC 1 WRONG HAND 8 B C3' DC 1 WRONG HAND 9 B C4' DC 5 WRONG HAND 9 B C3' DC 5 WRONG HAND 1 A DC 1 0.080 SIDE CHAIN 1 A DT 4 0.119 SIDE CHAIN 1 A DC 5 0.120 SIDE CHAIN 1 A DA 6 0.107 SIDE CHAIN 1 B DT 4 0.110 SIDE CHAIN 1 B DA 6 0.080 SIDE CHAIN 1 B DT 8 0.078 SIDE CHAIN 2 A DT 8 0.059 SIDE CHAIN 2 B DT 8 0.094 SIDE CHAIN 3 A DA 6 0.069 SIDE CHAIN 3 A DT 8 0.080 SIDE CHAIN 3 B DT 4 0.089 SIDE CHAIN 3 B DA 6 0.062 SIDE CHAIN 4 A DT 4 0.071 SIDE CHAIN 4 A DC 5 0.101 SIDE CHAIN 4 A DA 6 0.088 SIDE CHAIN 4 B DC 5 0.102 SIDE CHAIN 5 B DT 4 0.073 SIDE CHAIN 6 A DC 5 0.074 SIDE CHAIN 6 B DC 5 0.116 SIDE CHAIN 6 B DT 8 0.064 SIDE CHAIN 7 A DC 5 0.078 SIDE CHAIN 7 A DT 8 0.069 SIDE CHAIN 7 B DT 8 0.091 SIDE CHAIN 8 A DA 6 0.065 SIDE CHAIN 8 A DT 8 0.083 SIDE CHAIN 8 B DT 7 0.078 SIDE CHAIN 9 A DT 8 0.058 SIDE CHAIN 10 A DT 4 0.094 SIDE CHAIN 10 A DT 8 0.082 SIDE CHAIN 10 B DT 4 0.087 SIDE CHAIN 10 B DT 8 0.084 SIDE CHAIN 1 7.86 1.10 109.80 117.66 A A A C5' C4' O4' DG DG DG 2 2 2 N 1 3.53 0.30 108.30 111.83 A A A O4' C1' N1 DT DT DT 4 4 4 N 1 -3.84 0.60 122.90 119.06 A A A C6 C5 C7 DT DT DT 4 4 4 N 1 3.43 0.30 108.30 111.73 A A A O4' C1' N1 DC DC DC 5 5 5 N 1 3.85 0.60 119.00 122.85 A A A C4 C5 C7 DT DT DT 7 7 7 N 1 -5.38 0.60 122.90 117.52 A A A C6 C5 C7 DT DT DT 7 7 7 N 1 3.19 0.30 108.30 111.49 A A A O4' C1' N1 DT DT DT 8 8 8 N 1 -4.69 0.70 108.00 103.31 B B B O4' C1' N9 DG DG DG 2 2 2 N 1 4.80 0.30 108.30 113.10 B B B O4' C1' N1 DT DT DT 4 4 4 N 1 -5.20 0.60 122.90 117.70 B B B C6 C5 C7 DT DT DT 4 4 4 N 1 2.17 0.30 108.30 110.47 B B B O4' C1' N1 DC DC DC 5 5 5 N 1 3.81 0.60 119.00 122.81 B B B C4 C5 C7 DT DT DT 7 7 7 N 1 -5.65 0.60 122.90 117.25 B B B C6 C5 C7 DT DT DT 7 7 7 N 1 4.10 0.30 108.30 112.40 B B B O4' C1' N1 DT DT DT 8 8 8 N 2 -5.93 0.70 108.00 102.07 A A A O4' C1' N9 DG DG DG 2 2 2 N 2 3.04 0.30 108.30 111.34 A A A O4' C1' N1 DT DT DT 4 4 4 N 2 -4.61 0.60 122.90 118.29 A A A C6 C5 C7 DT DT DT 4 4 4 N 2 4.06 0.60 119.00 123.06 A A A C4 C5 C7 DT DT DT 7 7 7 N 2 -5.51 0.60 122.90 117.39 A A A C6 C5 C7 DT DT DT 7 7 7 N 2 3.03 0.30 108.30 111.33 A A A O4' C1' N1 DT DT DT 8 8 8 N 2 -5.63 0.70 108.00 102.37 B B B O4' C1' N9 DG DG DG 2 2 2 N 2 5.71 0.30 108.30 114.01 B B B O4' C1' N1 DT DT DT 4 4 4 N 2 -4.89 0.60 122.90 118.01 B B B C6 C5 C7 DT DT DT 4 4 4 N 2 4.00 0.30 108.30 112.30 B B B O4' C1' N1 DC DC DC 5 5 5 N 2 1.95 0.30 108.30 110.25 B B B O4' C1' N9 DA DA DA 6 6 6 N 2 3.91 0.60 119.00 122.91 B B B C4 C5 C7 DT DT DT 7 7 7 N 2 -5.78 0.60 122.90 117.12 B B B C6 C5 C7 DT DT DT 7 7 7 N 2 5.22 0.30 108.30 113.52 B B B O4' C1' N1 DT DT DT 8 8 8 N 3 -4.90 0.70 108.00 103.10 A A A O4' C1' N9 DG DG DG 2 2 2 N 3 2.34 0.30 108.30 110.64 A A A O4' C1' N1 DT DT DT 4 4 4 N 3 -4.21 0.60 122.90 118.69 A A A C6 C5 C7 DT DT DT 4 4 4 N 3 -5.06 0.70 121.90 116.84 A A A N3 C2 O2 DC DC DC 5 5 5 N 3 -5.20 0.60 122.90 117.70 A A A C6 C5 C7 DT DT DT 7 7 7 N 3 4.52 0.30 108.30 112.82 A A A O4' C1' N1 DT DT DT 8 8 8 N 3 7.21 1.10 109.80 117.01 B B B C5' C4' O4' DG DG DG 2 2 2 N 3 -5.14 0.70 108.00 102.86 B B B O4' C1' N9 DG DG DG 2 2 2 N 3 5.25 0.30 108.30 113.56 B B B O4' C1' N1 DT DT DT 4 4 4 N 3 -4.70 0.60 122.90 118.20 B B B C6 C5 C7 DT DT DT 4 4 4 N 3 3.83 0.30 108.30 112.13 B B B O4' C1' N1 DC DC DC 5 5 5 N 3 3.19 0.50 117.70 120.89 B B B C5 C6 N1 DA DA DA 6 6 6 N 3 -4.84 0.60 122.90 118.06 B B B C6 C5 C7 DT DT DT 7 7 7 N 3 3.94 0.30 108.30 112.24 B B B O4' C1' N1 DT DT DT 8 8 8 N 4 3.47 0.30 108.30 111.77 A A A O4' C1' N1 DC DC DC 1 1 1 N 4 -5.02 0.70 108.00 102.98 A A A O4' C1' N9 DG DG DG 2 2 2 N 4 2.06 0.30 108.30 110.36 A A A O4' C1' N1 DT DT DT 4 4 4 N 4 4.93 0.30 108.30 113.23 A A A O4' C1' N1 DC DC DC 5 5 5 N 4 -3.09 0.50 117.00 113.91 A A A C4 C5 C6 DA DA DA 6 6 6 N 4 -3.77 0.60 118.60 114.83 A A A N1 C6 N6 DA DA DA 6 6 6 N 4 -5.21 0.60 122.90 117.69 A A A C6 C5 C7 DT DT DT 7 7 7 N 4 3.55 0.30 108.30 111.85 A A A O4' C1' N1 DT DT DT 8 8 8 N 4 3.05 0.30 108.30 111.35 B B B O4' C1' N1 DC DC DC 1 1 1 N 4 8.31 1.20 115.70 124.01 B B B C5' C4' C3' DG DG DG 2 2 2 N 4 -4.71 0.70 108.00 103.29 B B B O4' C1' N9 DG DG DG 2 2 2 N 4 5.66 0.30 108.30 113.96 B B B O4' C1' N1 DT DT DT 4 4 4 N 4 -4.43 0.60 122.90 118.47 B B B C6 C5 C7 DT DT DT 4 4 4 N 4 4.98 0.30 108.30 113.28 B B B O4' C1' N1 DC DC DC 5 5 5 N 4 2.63 0.30 108.30 110.93 B B B O4' C1' N9 DA DA DA 6 6 6 N 4 -4.58 0.60 122.90 118.32 B B B C6 C5 C7 DT DT DT 7 7 7 N 4 3.84 0.30 108.30 112.14 B B B O4' C1' N1 DT DT DT 8 8 8 N 5 2.25 0.30 108.30 110.55 A A A O4' C1' N1 DC DC DC 1 1 1 N 5 2.43 0.30 108.30 110.73 A A A O4' C1' N1 DT DT DT 4 4 4 N 5 -3.65 0.60 122.90 119.25 A A A C6 C5 C7 DT DT DT 4 4 4 N 5 -4.24 0.70 102.20 97.96 A A A C4' C3' C2' DC DC DC 5 5 5 N 5 2.47 0.30 108.30 110.77 A A A O4' C1' N1 DC DC DC 5 5 5 N 5 4.16 0.60 119.00 123.16 A A A C4 C5 C7 DT DT DT 7 7 7 N 5 -5.64 0.60 122.90 117.26 A A A C6 C5 C7 DT DT DT 7 7 7 N 5 3.39 0.30 108.30 111.69 A A A O4' C1' N1 DT DT DT 8 8 8 N 5 8.17 1.10 109.80 117.97 B B B C5' C4' O4' DG DG DG 2 2 2 N 5 3.07 0.50 113.10 116.17 B B B N7 C8 N9 DG DG DG 2 2 2 N 5 -4.03 0.60 122.90 118.87 B B B C6 C5 C7 DT DT DT 4 4 4 N 5 3.67 0.30 108.30 111.97 B B B O4' C1' N1 DC DC DC 5 5 5 N 5 3.98 0.60 119.00 122.98 B B B C4 C5 C7 DT DT DT 7 7 7 N 5 -5.43 0.60 122.90 117.47 B B B C6 C5 C7 DT DT DT 7 7 7 N 5 3.42 0.30 108.30 111.72 B B B O4' C1' N1 DT DT DT 8 8 8 N 6 9.14 1.10 109.80 118.94 A A A C5' C4' O4' DG DG DG 2 2 2 N 6 3.23 0.30 108.30 111.53 A A A O4' C1' N1 DT DT DT 4 4 4 N 6 -3.88 0.60 122.90 119.02 A A A C6 C5 C7 DT DT DT 4 4 4 N 6 2.93 0.30 108.30 111.23 A A A O4' C1' N1 DC DC DC 5 5 5 N 6 3.70 0.60 118.90 122.60 A A A N1 C2 O2 DC DC DC 5 5 5 N 6 -4.29 0.70 121.90 117.61 A A A N3 C2 O2 DC DC DC 5 5 5 N 6 3.76 0.60 119.00 122.76 A A A C4 C5 C7 DT DT DT 7 7 7 N 6 -5.56 0.60 122.90 117.34 A A A C6 C5 C7 DT DT DT 7 7 7 N 6 2.36 0.30 108.30 110.66 A A A O4' C1' N1 DT DT DT 8 8 8 N 6 2.26 0.30 108.30 110.56 B B B O4' C1' N1 DC DC DC 1 1 1 N 6 -5.94 0.70 108.00 102.06 B B B O4' C1' N9 DG DG DG 2 2 2 N 6 3.16 0.30 108.30 111.46 B B B O4' C1' N1 DT DT DT 4 4 4 N 6 -3.98 0.60 122.90 118.92 B B B C6 C5 C7 DT DT DT 4 4 4 N 6 10.46 1.10 109.80 120.26 B B B C5' C4' O4' DC DC DC 5 5 5 N 6 -8.52 0.70 102.20 93.68 B B B C4' C3' C2' DC DC DC 5 5 5 N 6 5.97 0.30 108.30 114.27 B B B O4' C1' N1 DC DC DC 5 5 5 N 6 4.28 0.60 118.90 123.18 B B B N1 C2 O2 DC DC DC 5 5 5 N 6 -5.49 0.70 121.90 116.41 B B B N3 C2 O2 DC DC DC 5 5 5 N 6 3.90 0.60 119.00 122.90 B B B C4 C5 C7 DT DT DT 7 7 7 N 6 -5.76 0.60 122.90 117.14 B B B C6 C5 C7 DT DT DT 7 7 7 N 6 3.28 0.30 108.30 111.58 B B B O4' C1' N1 DT DT DT 8 8 8 N 7 -5.43 0.70 108.00 102.57 A A A O4' C1' N9 DG DG DG 2 2 2 N 7 2.12 0.30 108.30 110.42 A A A O4' C1' N1 DT DT DT 4 4 4 N 7 -4.21 0.60 122.90 118.69 A A A C6 C5 C7 DT DT DT 4 4 4 N 7 6.81 0.30 108.30 115.11 A A A O4' C1' N1 DC DC DC 5 5 5 N 7 3.95 0.60 119.00 122.95 A A A C4 C5 C7 DT DT DT 7 7 7 N 7 -5.70 0.60 122.90 117.20 A A A C6 C5 C7 DT DT DT 7 7 7 N 7 3.81 0.30 108.30 112.11 A A A O4' C1' N1 DT DT DT 8 8 8 N 7 -4.53 0.70 108.00 103.47 B B B O4' C1' N9 DG DG DG 2 2 2 N 7 -3.80 0.60 122.90 119.10 B B B C6 C5 C7 DT DT DT 4 4 4 N 7 3.82 0.60 119.00 122.82 B B B C4 C5 C7 DT DT DT 7 7 7 N 7 -5.68 0.60 122.90 117.22 B B B C6 C5 C7 DT DT DT 7 7 7 N 7 4.99 0.30 108.30 113.29 B B B O4' C1' N1 DT DT DT 8 8 8 N 8 2.38 0.30 108.30 110.68 A A A O4' C1' N1 DC DC DC 1 1 1 N 8 -5.19 0.70 108.00 102.81 A A A O4' C1' N9 DG DG DG 2 2 2 N 8 3.97 0.30 108.30 112.27 A A A O4' C1' N1 DT DT DT 4 4 4 N 8 -4.54 0.60 122.90 118.36 A A A C6 C5 C7 DT DT DT 4 4 4 N 8 -4.89 0.60 122.90 118.01 A A A C6 C5 C7 DT DT DT 7 7 7 N 8 4.61 0.30 108.30 112.91 A A A O4' C1' N1 DT DT DT 8 8 8 N 8 3.14 0.30 108.30 111.44 B B B O4' C1' N1 DT DT DT 4 4 4 N 8 -4.34 0.60 122.90 118.56 B B B C6 C5 C7 DT DT DT 4 4 4 N 8 4.32 0.30 108.30 112.62 B B B O4' C1' N9 DA DA DA 6 6 6 N 8 4.00 0.60 119.00 123.00 B B B C4 C5 C7 DT DT DT 7 7 7 N 8 -5.36 0.60 122.90 117.54 B B B C6 C5 C7 DT DT DT 7 7 7 N 8 2.52 0.30 108.30 110.82 B B B O4' C1' N1 DT DT DT 8 8 8 N 9 -5.02 0.70 108.00 102.98 A A A O4' C1' N9 DG DG DG 2 2 2 N 9 2.76 0.30 108.30 111.06 A A A O4' C1' N1 DT DT DT 4 4 4 N 9 -4.10 0.60 122.90 118.80 A A A C6 C5 C7 DT DT DT 4 4 4 N 9 4.62 0.60 119.00 123.62 A A A C4 C5 C7 DT DT DT 7 7 7 N 9 -6.21 0.60 122.90 116.69 A A A C6 C5 C7 DT DT DT 7 7 7 N 9 3.06 0.30 108.30 111.36 A A A O4' C1' N1 DT DT DT 8 8 8 N 9 5.19 0.30 108.30 113.49 B B B O4' C1' N1 DC DC DC 1 1 1 N 9 -5.76 0.70 108.00 102.24 B B B O4' C1' N9 DG DG DG 2 2 2 N 9 -4.78 0.60 122.90 118.12 B B B C6 C5 C7 DT DT DT 4 4 4 N 9 2.09 0.30 108.30 110.39 B B B O4' C1' N1 DC DC DC 5 5 5 N 9 3.05 0.50 117.70 120.75 B B B C5 C6 N1 DA DA DA 6 6 6 N 9 -5.29 0.60 122.90 117.61 B B B C6 C5 C7 DT DT DT 7 7 7 N 9 3.43 0.30 108.30 111.73 B B B O4' C1' N1 DT DT DT 8 8 8 N 10 -4.41 0.70 102.20 97.79 A A A C4' C3' C2' DC DC DC 1 1 1 N 10 6.98 0.30 108.30 115.28 A A A O4' C1' N1 DC DC DC 1 1 1 N 10 3.91 0.30 108.30 112.21 A A A O4' C1' N1 DT DT DT 4 4 4 N 10 -4.88 0.60 122.90 118.02 A A A C6 C5 C7 DT DT DT 4 4 4 N 10 3.80 0.30 108.30 112.10 A A A O4' C1' N1 DC DC DC 5 5 5 N 10 3.67 0.60 119.00 122.67 A A A C4 C5 C7 DT DT DT 7 7 7 N 10 -5.41 0.60 122.90 117.49 A A A C6 C5 C7 DT DT DT 7 7 7 N 10 3.59 0.30 108.30 111.89 A A A O4' C1' N1 DT DT DT 8 8 8 N 10 -4.79 0.70 108.00 103.21 B B B O4' C1' N9 DG DG DG 2 2 2 N 10 5.09 0.30 108.30 113.39 B B B O4' C1' N1 DT DT DT 4 4 4 N 10 -4.82 0.60 122.90 118.08 B B B C6 C5 C7 DT DT DT 4 4 4 N 10 3.13 0.30 108.30 111.43 B B B O4' C1' N1 DC DC DC 5 5 5 N 10 3.05 0.50 117.70 120.75 B B B C5 C6 N1 DA DA DA 6 6 6 N 10 3.72 0.60 119.00 122.72 B B B C4 C5 C7 DT DT DT 7 7 7 N 10 -5.47 0.60 122.90 117.43 B B B C6 C5 C7 DT DT DT 7 7 7 N 10 4.46 0.30 108.30 112.76 B B B O4' C1' N1 DT DT DT 8 8 8 N DIMERIC SOLUTION STRUCTURE OF THE CYCLIC OCTAMER CD(CGCTCATT) 1 N N 1 N N covale 1.607 both A DC 1 A P DC 1 1_555 A DT 8 A O3' DT 8 1_555 covale 1.603 both B DC 1 B P DC 1 1_555 B DT 8 B O3' DT 8 1_555 hydrog WATSON-CRICK A DG 2 A N1 DG 2 1_555 B DC 3 B N3 DC 3 1_555 hydrog WATSON-CRICK A DG 2 A N2 DG 2 1_555 B DC 3 B O2 DC 3 1_555 hydrog WATSON-CRICK A DG 2 A O6 DG 2 1_555 B DC 3 B N4 DC 3 1_555 hydrog WATSON-CRICK A DC 3 A N3 DC 3 1_555 B DG 2 B N1 DG 2 1_555 hydrog WATSON-CRICK A DC 3 A N4 DC 3 1_555 B DG 2 B O6 DG 2 1_555 hydrog WATSON-CRICK A DC 3 A O2 DC 3 1_555 B DG 2 B N2 DG 2 1_555 hydrog WATSON-CRICK A DA 6 A N1 DA 6 1_555 B DT 7 B N3 DT 7 1_555 hydrog WATSON-CRICK A DA 6 A N6 DA 6 1_555 B DT 7 B O4 DT 7 1_555 hydrog WATSON-CRICK A DT 7 A N3 DT 7 1_555 B DA 6 B N1 DA 6 1_555 hydrog WATSON-CRICK A DT 7 A O4 DT 7 1_555 B DA 6 B N6 DA 6 1_555 DNA QUADRUPLEX, FOUR-STRANDED DNA, UNUSUAL DNA, BI-LOOP, DNA 1N96 PDB 1 1N96 1 8 1N96 1 8 1N96 A 1 1 8 1 8 1N96 1 8 1N96 B 1 1 8 1 P 1