1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Kettani, A. Kumar, R.A. 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 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 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 N 13 N N N 14 N C N 15 N O N 16 N N N 17 N C N 18 N N N 19 N C N 20 N C N 21 N H N 22 N H 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 O N 36 N P N 37 N O N 38 N O N 39 N O N 40 N C N 41 R C N 42 N O N 43 S C N 44 N O N 45 N C N 46 R C Y 47 N N Y 48 N C Y 49 N N Y 50 N C N 51 N C N 52 N O N 53 N N N 54 N C N 55 N N N 56 N N Y 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 N 84 N N N 85 N C N 86 N O N 87 N N N 88 N C N 89 N O N 90 N C N 91 N C 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 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 N 25 N sing N 26 N doub N 27 N sing N 28 N doub N 29 N sing N 30 N sing N 31 N sing N 32 N sing N 33 N doub N 34 N sing N 35 N sing N 36 N sing N 37 N sing N 38 N doub N 39 N sing N 40 N sing N 41 N sing 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 Y 59 N sing Y 60 N sing Y 61 N doub N 62 N sing Y 63 N sing N 64 N sing Y 65 N doub 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 sing N 77 N doub 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 N 97 N sing N 98 N sing N 99 N sing N 100 N doub N 101 N sing N 102 N sing N 103 N sing N 104 N doub N 105 N sing N 106 N sing N 107 N doub N 108 N sing N 109 N sing N 110 N sing N 111 N sing UK J.Mol.Biol. JMOBAK 0070 0022-2836 254 638 656 10.1006/jmbi.1995.0644 7500339 Solution structure of a DNA quadruplex containing the fragile X syndrome triplet repeat. 1995 10.2210/pdb1a6h/pdb pdb_00001a6h 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 3421.219 DNA (5'-D(GP*CP*GP*GP*TP*TP*TP*GP*CP*GP*G)-3') 2 syn polymer no no (DG)(DC)(DG)(DG)(DT)(DT)(DT)(DG)(DC)(DG)(DG) GCGGTTTGCGG A,B polydeoxyribonucleotide n n n n n n n n n n n database_2 pdbx_database_status pdbx_nmr_software pdbx_struct_assembly pdbx_struct_oper_list chem_comp_atom chem_comp_bond repository Initial release Version format compliance Version format compliance Data collection Database references Derived calculations Other Data collection 1 0 1998-06-17 1 1 2008-03-24 1 2 2011-07-13 1 3 2022-02-16 1 4 2024-05-22 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_database_status.process_site _pdbx_nmr_software.name 1998-06-17 SPRSDE Y BNL 1998-02-25 REL ALL CONFORMERS PRESENTED 4 4 IN D(2)O: NOESY COSY-45 COSY-90 TOCSY (1)H-(31)P COSY (1H)-(13)C HMQC. NOESY BUILDUP AT 50 100 150 200 AND 300 ; IN H(2)O: NOESY (80 AND 250 MS) (1)H-(15)N HMQC 6.5 317 K A SET OF FOUR STRUCTURES WERE OBTAINED USING METRIC MATRIX DISTANCE GEOMETRY, AND SUBSEQUENTLY REFINED BY DISTANCE-RESTRAINED MOLECULAR DYNAMICS USING A SET OF INTER-PROTON DISTANCES AND DIHEDRAL ANGLE RESTRAINTS DERIVED FROM THE NMR DATA. THE FOUR DISTANCE-REFINED STRUCTURES WERE REFINED FURTHER USING RELAXATION-MATRIX BASED NOE INTENSITY-RESTRAINED MOLECULAR DYNAMICS. ALL CALCULATIONS WERE CARRIED OUT USING THE X-PLOR PROGRAM. THE FINAL FOUR STRUCTURES WERE OBTAINED BY CONJUGATE GRADIENT MINIMIZATION OF THE STRUCTURES OBTAINED BY RELAXATION MATRIX BASED NOE INTENSITY-RESTRAINED MOLECULAR DYNAMICS. THE UNWEIGHTED R(1/6) VALUE WAS USED TO MONITOR THE REFINEMENT. THE R(1/6)-FACTOR IS DEFINED: R(1/6) = SUM{|I(OBS)^(1/6) - K*I(CALC)^(1/6)|} / SUM{I(OBS)^(1/6)}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refinement X-PLOR structure solution VARIAN VNMR VNMR structure solution Felix structure solution X-PLOR 500 Varian VARIAN UNITY PLUS 600 Varian VARIAN UNITY PLUS G 1 n 1 DG 1 A C 2 n 2 DC 2 A G 3 n 3 DG 3 A G 4 n 4 DG 4 A T 5 n 5 DT 5 A T 6 n 6 DT 6 A T 7 n 7 DT 7 A G 8 n 8 DG 8 A C 9 n 9 DC 9 A G 10 n 10 DG 10 A G 11 n 11 DG 11 A G 1 n 1 DG 1 B C 2 n 2 DC 2 B G 3 n 3 DG 3 B G 4 n 4 DG 4 B T 5 n 5 DT 5 B T 6 n 6 DT 6 B T 7 n 7 DT 7 B G 8 n 8 DG 8 B C 9 n 9 DC 9 B G 10 n 10 DG 10 B G 11 n 11 DG 11 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 H2' OP2 DG DT 4 6 1.44 1 A A H2' OP2 DG DT 4 6 1.52 1 4.43 0.30 108.30 112.73 A A A O4' C1' N9 DG DG DG 1 1 1 N 1 -6.79 0.80 105.90 99.11 A A A O4' C1' C2' DC DC DC 2 2 2 N 1 -4.99 0.70 102.20 97.21 A A A C4' C3' C2' DG DG DG 3 3 3 N 1 7.93 1.20 102.50 110.43 A A A C3' C2' C1' DG DG DG 4 4 4 N 1 4.58 0.30 108.30 112.88 A A A O4' C1' N9 DG DG DG 4 4 4 N 1 4.38 0.30 108.30 112.68 A A A O4' C1' N1 DT DT DT 5 5 5 N 1 10.26 1.20 115.70 125.96 A A A C5' C4' C3' DT DT DT 6 6 6 N 1 3.12 0.30 108.30 111.42 A A A O4' C1' N1 DT DT DT 6 6 6 N 1 5.62 0.60 119.00 124.62 A A A C4 C5 C7 DT DT DT 6 6 6 N 1 -7.44 0.60 122.90 115.46 A A A C6 C5 C7 DT DT DT 6 6 6 N 1 9.02 1.20 119.70 128.72 A A A C3' O3' P DT DT DT 6 6 7 Y 1 2.53 0.30 108.30 110.83 A A A O4' C1' N1 DT DT DT 7 7 7 N 1 -5.24 0.60 122.90 117.66 A A A C6 C5 C7 DT DT DT 7 7 7 N 1 -5.05 0.70 102.20 97.15 A A A C4' C3' C2' DG DG DG 8 8 8 N 1 -4.49 0.70 108.00 103.51 A A A O4' C1' N1 DC DC DC 9 9 9 N 1 4.53 0.30 108.30 112.83 B B B O4' C1' N9 DG DG DG 1 1 1 N 1 -6.80 0.80 105.90 99.10 B B B O4' C1' C2' DC DC DC 2 2 2 N 1 -5.12 0.70 102.20 97.08 B B B C4' C3' C2' DG DG DG 3 3 3 N 1 7.70 1.20 102.50 110.20 B B B C3' C2' C1' DG DG DG 4 4 4 N 1 4.50 0.30 108.30 112.80 B B B O4' C1' N9 DG DG DG 4 4 4 N 1 4.37 0.30 108.30 112.67 B B B O4' C1' N1 DT DT DT 5 5 5 N 1 10.28 1.20 115.70 125.98 B B B C5' C4' C3' DT DT DT 6 6 6 N 1 2.88 0.30 108.30 111.18 B B B O4' C1' N1 DT DT DT 6 6 6 N 1 5.39 0.60 119.00 124.39 B B B C4 C5 C7 DT DT DT 6 6 6 N 1 -7.29 0.60 122.90 115.61 B B B C6 C5 C7 DT DT DT 6 6 6 N 1 9.11 1.20 119.70 128.81 B B B C3' O3' P DT DT DT 6 6 7 Y 1 2.58 0.30 108.30 110.88 B B B O4' C1' N1 DT DT DT 7 7 7 N 1 -5.26 0.60 122.90 117.64 B B B C6 C5 C7 DT DT DT 7 7 7 N 1 -5.12 0.70 102.20 97.08 B B B C4' C3' C2' DG DG DG 8 8 8 N 1 -4.42 0.70 108.00 103.58 B B B O4' C1' N1 DC DC DC 9 9 9 N 2 4.80 0.30 108.30 113.10 A A A O4' C1' N9 DG DG DG 1 1 1 N 2 -6.58 1.00 110.10 103.52 A A A C1' O4' C4' DC DC DC 2 2 2 N 2 -5.92 0.80 105.90 99.98 A A A O4' C1' C2' DG DG DG 3 3 3 N 2 -4.51 0.70 102.20 97.69 A A A C4' C3' C2' DG DG DG 4 4 4 N 2 8.89 0.30 108.30 117.19 A A A O4' C1' N9 DG DG DG 4 4 4 N 2 14.69 2.00 112.30 126.99 A A A C4' C3' O3' DT DT DT 5 5 5 N 2 -7.18 0.80 105.90 98.72 A A A O4' C1' C2' DT DT DT 5 5 5 N 2 9.04 1.20 115.70 124.74 A A A C5' C4' C3' DT DT DT 6 6 6 N 2 5.52 0.60 119.00 124.52 A A A C4 C5 C7 DT DT DT 6 6 6 N 2 -7.84 0.60 122.90 115.06 A A A C6 C5 C7 DT DT DT 6 6 6 N 2 -5.27 0.60 122.90 117.63 A A A C6 C5 C7 DT DT DT 7 7 7 N 2 7.28 1.20 119.70 126.98 A A A C3' O3' P DT DT DG 7 7 8 Y 2 -4.39 0.70 102.20 97.81 A A A C4' C3' C2' DG DG DG 8 8 8 N 2 -5.38 0.70 108.00 102.62 A A A O4' C1' N1 DC DC DC 9 9 9 N 2 4.77 0.30 108.30 113.07 B B B O4' C1' N9 DG DG DG 1 1 1 N 2 -6.64 1.00 110.10 103.46 B B B C1' O4' C4' DC DC DC 2 2 2 N 2 -5.92 0.80 105.90 99.98 B B B O4' C1' C2' DG DG DG 3 3 3 N 2 -4.49 0.70 102.20 97.71 B B B C4' C3' C2' DG DG DG 4 4 4 N 2 8.87 0.30 108.30 117.17 B B B O4' C1' N9 DG DG DG 4 4 4 N 2 14.70 2.00 112.30 127.00 B B B C4' C3' O3' DT DT DT 5 5 5 N 2 -7.19 0.80 105.90 98.71 B B B O4' C1' C2' DT DT DT 5 5 5 N 2 8.95 1.20 115.70 124.65 B B B C5' C4' C3' DT DT DT 6 6 6 N 2 5.60 0.60 119.00 124.60 B B B C4 C5 C7 DT DT DT 6 6 6 N 2 -7.82 0.60 122.90 115.08 B B B C6 C5 C7 DT DT DT 6 6 6 N 2 -5.34 0.60 122.90 117.56 B B B C6 C5 C7 DT DT DT 7 7 7 N 2 7.30 1.20 119.70 127.00 B B B C3' O3' P DT DT DG 7 7 8 Y 2 -4.35 0.70 102.20 97.85 B B B C4' C3' C2' DG DG DG 8 8 8 N 2 -5.31 0.70 108.00 102.69 B B B O4' C1' N1 DC DC DC 9 9 9 N 3 6.10 0.30 108.30 114.40 A A A O4' C1' N9 DG DG DG 1 1 1 N 3 -6.55 1.00 110.10 103.55 A A A C1' O4' C4' DC DC DC 2 2 2 N 3 -6.85 0.80 105.90 99.05 A A A O4' C1' C2' DC DC DC 2 2 2 N 3 -6.33 0.70 102.20 95.87 A A A C4' C3' C2' DG DG DG 3 3 3 N 3 5.68 0.30 108.30 113.98 A A A O4' C1' N9 DG DG DG 4 4 4 N 3 -2.82 0.40 104.50 101.68 A A A O4' C4' C3' DT DT DT 5 5 5 N 3 15.00 2.00 112.30 127.30 A A A C4' C3' O3' DT DT DT 5 5 5 N 3 -5.13 0.80 105.90 100.77 A A A O4' C1' C2' DT DT DT 5 5 5 N 3 5.00 0.30 108.30 113.30 A A A O4' C1' N1 DT DT DT 5 5 5 N 3 9.29 1.20 115.70 124.99 A A A C5' C4' C3' DT DT DT 6 6 6 N 3 6.43 0.60 119.00 125.43 A A A C4 C5 C7 DT DT DT 6 6 6 N 3 -8.43 0.60 122.90 114.47 A A A C6 C5 C7 DT DT DT 6 6 6 N 3 8.01 1.20 119.70 127.71 A A A C3' O3' P DT DT DT 6 6 7 Y 3 -2.77 0.40 104.50 101.73 A A A O4' C4' C3' DT DT DT 7 7 7 N 3 7.20 1.20 115.70 122.90 A A A C5' C4' C3' DT DT DT 7 7 7 N 3 -5.81 0.60 122.90 117.09 A A A C6 C5 C7 DT DT DT 7 7 7 N 3 -7.64 1.00 110.10 102.46 A A A C1' O4' C4' DC DC DC 9 9 9 N 3 6.13 0.30 108.30 114.43 B B B O4' C1' N9 DG DG DG 1 1 1 N 3 -6.59 1.00 110.10 103.51 B B B C1' O4' C4' DC DC DC 2 2 2 N 3 -6.81 0.80 105.90 99.09 B B B O4' C1' C2' DC DC DC 2 2 2 N 3 -6.27 0.70 102.20 95.93 B B B C4' C3' C2' DG DG DG 3 3 3 N 3 5.61 0.30 108.30 113.91 B B B O4' C1' N9 DG DG DG 4 4 4 N 3 -2.77 0.40 104.50 101.73 B B B O4' C4' C3' DT DT DT 5 5 5 N 3 15.01 2.00 112.30 127.31 B B B C4' C3' O3' DT DT DT 5 5 5 N 3 -5.10 0.80 105.90 100.80 B B B O4' C1' C2' DT DT DT 5 5 5 N 3 5.05 0.30 108.30 113.35 B B B O4' C1' N1 DT DT DT 5 5 5 N 3 9.17 1.20 115.70 124.87 B B B C5' C4' C3' DT DT DT 6 6 6 N 3 6.43 0.60 119.00 125.43 B B B C4 C5 C7 DT DT DT 6 6 6 N 3 -8.43 0.60 122.90 114.47 B B B C6 C5 C7 DT DT DT 6 6 6 N 3 8.08 1.20 119.70 127.78 B B B C3' O3' P DT DT DT 6 6 7 Y 3 -2.84 0.40 104.50 101.66 B B B O4' C4' C3' DT DT DT 7 7 7 N 3 7.27 1.20 115.70 122.97 B B B C5' C4' C3' DT DT DT 7 7 7 N 3 -5.67 0.60 122.90 117.23 B B B C6 C5 C7 DT DT DT 7 7 7 N 3 -7.61 1.00 110.10 102.49 B B B C1' O4' C4' DC DC DC 9 9 9 N 3 -4.80 0.80 105.90 101.10 B B B O4' C1' C2' DG DG DG 11 11 11 N 4 3.95 0.30 108.30 112.25 A A A O4' C1' N9 DG DG DG 1 1 1 N 4 -6.85 1.00 110.10 103.25 A A A C1' O4' C4' DC DC DC 2 2 2 N 4 -5.12 0.80 105.90 100.78 A A A O4' C1' C2' DG DG DG 4 4 4 N 4 3.81 0.30 108.30 112.11 A A A O4' C1' N9 DG DG DG 4 4 4 N 4 -5.98 0.80 105.90 99.92 A A A O4' C1' C2' DT DT DT 5 5 5 N 4 1.98 0.30 108.30 110.28 A A A O4' C1' N1 DT DT DT 5 5 5 N 4 -3.64 0.60 122.90 119.26 A A A C6 C5 C7 DT DT DT 5 5 5 N 4 2.96 0.30 108.30 111.26 A A A O4' C1' N1 DT DT DT 6 6 6 N 4 -5.10 0.60 122.90 117.80 A A A C6 C5 C7 DT DT DT 6 6 6 N 4 -3.91 0.60 122.90 118.99 A A A C6 C5 C7 DT DT DT 7 7 7 N 4 -6.76 0.80 105.90 99.14 A A A O4' C1' C2' DC DC DC 9 9 9 N 4 -2.77 0.40 104.50 101.73 A A A O4' C4' C3' DG DG DG 10 10 10 N 4 -6.73 1.00 110.10 103.37 A A A C1' O4' C4' DG DG DG 10 10 10 N 4 3.99 0.30 108.30 112.29 B B B O4' C1' N9 DG DG DG 1 1 1 N 4 -6.79 1.00 110.10 103.31 B B B C1' O4' C4' DC DC DC 2 2 2 N 4 -5.03 0.80 105.90 100.87 B B B O4' C1' C2' DG DG DG 4 4 4 N 4 4.06 0.30 108.30 112.36 B B B O4' C1' N9 DG DG DG 4 4 4 N 4 -6.01 0.80 105.90 99.89 B B B O4' C1' C2' DT DT DT 5 5 5 N 4 2.01 0.30 108.30 110.31 B B B O4' C1' N1 DT DT DT 5 5 5 N 4 2.93 0.30 108.30 111.23 B B B O4' C1' N1 DT DT DT 6 6 6 N 4 -4.96 0.60 122.90 117.94 B B B C6 C5 C7 DT DT DT 6 6 6 N 4 -4.00 0.60 122.90 118.90 B B B C6 C5 C7 DT DT DT 7 7 7 N 4 -6.81 0.80 105.90 99.09 B B B O4' C1' C2' DC DC DC 9 9 9 N 4 -2.83 0.40 104.50 101.67 B B B O4' C4' C3' DG DG DG 10 10 10 N 4 -6.75 1.00 110.10 103.35 B B B C1' O4' C4' DG DG DG 10 10 10 N 1 A A C5 C7 DT DT 5 5 0.037 0.006 1.496 1.533 N 1 A A C5 C7 DT DT 6 6 0.056 0.006 1.496 1.552 N 1 A A C5' C4' DT DT 7 7 0.064 0.007 1.512 1.576 N 1 B B C5 C7 DT DT 5 5 0.039 0.006 1.496 1.535 N 1 B B C5 C7 DT DT 6 6 0.052 0.006 1.496 1.548 N 1 B B C5' C4' DT DT 7 7 0.066 0.007 1.512 1.578 N 2 A A C5 C7 DT DT 5 5 0.039 0.006 1.496 1.535 N 2 A A C5 C7 DT DT 6 6 0.038 0.006 1.496 1.534 N 2 A A C5' C4' DT DT 7 7 0.050 0.007 1.512 1.562 N 2 B B C5 C7 DT DT 5 5 0.040 0.006 1.496 1.536 N 2 B B C5 C7 DT DT 6 6 0.037 0.006 1.496 1.533 N 2 B B C5' C4' DT DT 7 7 0.049 0.007 1.512 1.561 N 3 A A C5 C7 DT DT 5 5 0.038 0.006 1.496 1.534 N 3 A A C5' C4' DT DT 6 6 0.042 0.007 1.512 1.554 N 3 A A C5 C7 DT DT 6 6 0.045 0.006 1.496 1.541 N 3 B B C5 C7 DT DT 5 5 0.038 0.006 1.496 1.534 N 3 B B C5' C4' DT DT 6 6 0.042 0.007 1.512 1.554 N 3 B B C5 C7 DT DT 6 6 0.044 0.006 1.496 1.540 N model building X-PLOR refinement X-PLOR phasing X-PLOR DNA QUADRUPLEX CONTAINING GCGC TETRAD, NMR, 4 STRUCTURES 1 N N 1 N N hydrog TYPE_6_PAIR A DG 1 A N7 DG 1 1_555 A DG 11 A N2 DG 11 1_555 hydrog TYPE_6_PAIR A DG 1 A O6 DG 1 1_555 A DG 11 A N1 DG 11 1_555 hydrog TYPE_6_PAIR A DG 1 A N1 DG 1 1_555 B DG 4 B O6 DG 4 1_555 hydrog TYPE_6_PAIR A DG 1 A N2 DG 1 1_555 B DG 4 B N7 DG 4 1_555 hydrog WATSON-CRICK A DC 2 A N3 DC 2 1_555 A DG 10 A N1 DG 10 1_555 hydrog WATSON-CRICK A DC 2 A N4 DC 2 1_555 A DG 10 A O6 DG 10 1_555 hydrog WATSON-CRICK A DC 2 A O2 DC 2 1_555 A DG 10 A N2 DG 10 1_555 hydrog DC-DG PAIR A DC 2 A N4 DC 2 1_555 B DG 3 B O6 DG 3 1_555 hydrog WATSON-CRICK A DG 3 A N1 DG 3 1_555 A DC 9 A N3 DC 9 1_555 hydrog WATSON-CRICK A DG 3 A N2 DG 3 1_555 A DC 9 A O2 DC 9 1_555 hydrog WATSON-CRICK A DG 3 A O6 DG 3 1_555 A DC 9 A N4 DC 9 1_555 hydrog DG-DC PAIR A DG 3 A O6 DG 3 1_555 B DC 2 B N4 DC 2 1_555 hydrog TYPE_6_PAIR A DG 4 A N1 DG 4 1_555 A DG 8 A O6 DG 8 1_555 hydrog TYPE_6_PAIR A DG 4 A N2 DG 4 1_555 A DG 8 A N7 DG 8 1_555 hydrog DG-DC PAIR A DG 4 A N1 DG 4 1_555 A DC 9 A N3 DC 9 1_555 hydrog TYPE_6_PAIR A DG 4 A N7 DG 4 1_555 B DG 1 B N2 DG 1 1_555 hydrog TYPE_6_PAIR A DG 4 A O6 DG 4 1_555 B DG 1 B N1 DG 1 1_555 hydrog TYPE_6_PAIR A DG 8 A N1 DG 8 1_555 B DG 11 B O6 DG 11 1_555 hydrog TYPE_6_PAIR A DG 8 A N2 DG 8 1_555 B DG 11 B N7 DG 11 1_555 hydrog DC-DG PAIR A DC 9 A N4 DC 9 1_555 B DG 10 B O6 DG 10 1_555 hydrog DG-DC PAIR A DG 10 A O6 DG 10 1_555 B DC 9 B N4 DC 9 1_555 hydrog TYPE_6_PAIR A DG 11 A N7 DG 11 1_555 B DG 8 B N2 DG 8 1_555 hydrog TYPE_6_PAIR A DG 11 A O6 DG 11 1_555 B DG 8 B N1 DG 8 1_555 hydrog TYPE_6_PAIR B DG 1 B N7 DG 1 1_555 B DG 11 B N2 DG 11 1_555 hydrog TYPE_6_PAIR B DG 1 B O6 DG 1 1_555 B DG 11 B N1 DG 11 1_555 hydrog WATSON-CRICK B DC 2 B N3 DC 2 1_555 B DG 10 B N1 DG 10 1_555 hydrog WATSON-CRICK B DC 2 B N4 DC 2 1_555 B DG 10 B O6 DG 10 1_555 hydrog WATSON-CRICK B DC 2 B O2 DC 2 1_555 B DG 10 B N2 DG 10 1_555 hydrog WATSON-CRICK B DG 3 B N1 DG 3 1_555 B DC 9 B N3 DC 9 1_555 hydrog WATSON-CRICK B DG 3 B N2 DG 3 1_555 B DC 9 B O2 DC 9 1_555 hydrog WATSON-CRICK B DG 3 B O6 DG 3 1_555 B DC 9 B N4 DC 9 1_555 hydrog TYPE_6_PAIR B DG 4 B N1 DG 4 1_555 B DG 8 B O6 DG 8 1_555 hydrog TYPE_6_PAIR B DG 4 B N2 DG 4 1_555 B DG 8 B N7 DG 8 1_555 hydrog DG-DC PAIR B DG 4 B N1 DG 4 1_555 B DC 9 B N3 DC 9 1_555 DNA DEOXYRIBONUCLEIC ACID, DNA QUADRUPLEX, FRAGILE X SYNDROME, D(CGG) TRIPLET REPEAT, GCGC TETRADS, DNA 1A6H PDB 1 1A6H 1 11 1A6H 1 11 1A6H A 1 1 11 1 11 1A6H 1 11 1A6H B 1 1 11 1 P 1