data_A1KC6 # _chem_comp.id A1KC6 _chem_comp.name "[[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-[[[[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-oxidanyl-phosphoryl]methyl]phosphinic acid" _chem_comp.type non-polymer _chem_comp.pdbx_type HETAIN _chem_comp.formula "C21 H30 N10 O18 P4" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2026-07-02 _chem_comp.pdbx_modified_date 2026-10-02 _chem_comp.pdbx_ambiguous_flag N _chem_comp.pdbx_release_status REL _chem_comp.pdbx_replaced_by ? _chem_comp.pdbx_replaces ? _chem_comp.formula_weight 834.414 _chem_comp.one_letter_code ? _chem_comp.three_letter_code A1KC6 _chem_comp.pdbx_model_coordinates_details ? _chem_comp.pdbx_model_coordinates_missing_flag N _chem_comp.pdbx_ideal_coordinates_details Corina _chem_comp.pdbx_ideal_coordinates_missing_flag N _chem_comp.pdbx_model_coordinates_db_code 31LR _chem_comp.pdbx_subcomponent_list ? _chem_comp.pdbx_processing_site PDBE _chem_comp.pdbx_pcm ? _chem_comp.pdbx_comp_type ? # loop_ _chem_comp_atom.comp_id _chem_comp_atom.atom_id _chem_comp_atom.alt_atom_id _chem_comp_atom.type_symbol _chem_comp_atom.charge _chem_comp_atom.pdbx_align _chem_comp_atom.pdbx_aromatic_flag _chem_comp_atom.pdbx_leaving_atom_flag _chem_comp_atom.pdbx_stereo_config _chem_comp_atom.pdbx_n_terminal_atom_flag _chem_comp_atom.pdbx_backbone_atom_flag _chem_comp_atom.pdbx_c_terminal_atom_flag _chem_comp_atom.model_Cartn_x _chem_comp_atom.model_Cartn_y _chem_comp_atom.model_Cartn_z _chem_comp_atom.pdbx_model_Cartn_x_ideal _chem_comp_atom.pdbx_model_Cartn_y_ideal _chem_comp_atom.pdbx_model_Cartn_z_ideal _chem_comp_atom.pdbx_component_atom_id _chem_comp_atom.pdbx_component_comp_id _chem_comp_atom.pdbx_ordinal A1KC6 N1 N1 N 0 1 Y N N N N N 25.776 39.627 40.992 -9.271 -1.458 2.634 N1 A1KC6 1 A1KC6 N2 N2 N 0 1 Y N N N N N 26.646 40.431 44.364 -9.057 -4.295 0.648 N2 A1KC6 2 A1KC6 C3 C1 C 0 1 N N R N N N 27.770 43.454 42.069 -8.663 -1.392 -1.715 C3 A1KC6 3 A1KC6 C4 C2 C 0 1 N N S N N N 27.419 43.894 40.648 -7.924 -0.354 -2.588 C4 A1KC6 4 A1KC6 C5 C3 C 0 1 Y N N N N N 25.903 40.930 40.987 -8.605 -0.944 1.642 C5 A1KC6 5 A1KC6 C6 C4 C 0 1 Y N N N N N 26.054 39.274 42.308 -9.518 -2.766 2.382 C6 A1KC6 6 A1KC6 C7 C5 C 0 1 Y N N N N N 26.343 40.399 43.060 -8.951 -3.061 1.131 C7 A1KC6 7 A1KC6 C8 C6 C 0 1 Y N N N N N 26.639 39.204 44.891 -9.683 -5.230 1.330 C8 A1KC6 8 A1KC6 N N3 N 0 1 Y N N N N N 26.245 41.467 42.204 -8.382 -1.893 0.689 N A1KC6 9 A1KC6 C C7 C 0 1 N N N N N N 25.108 44.239 39.586 -6.131 1.306 -1.951 C A1KC6 10 A1KC6 O O1 O 0 1 N N N N N N 25.953 43.282 36.655 -3.972 3.454 -2.653 O A1KC6 11 A1KC6 C1 C8 C 0 1 N N R N N N 25.983 44.389 40.803 -6.569 -0.158 -1.872 C1 A1KC6 12 A1KC6 C10 C9 C 0 1 N N N N N N 27.751 47.473 37.824 0.107 2.571 0.125 C10 A1KC6 13 A1KC6 C2 C10 C 0 1 N N R N N N 26.435 42.872 42.534 -7.667 -1.701 -0.575 C2 A1KC6 14 A1KC6 C9 C11 C 0 1 Y N N N N N 26.080 38.036 42.972 -10.177 -3.798 3.071 C9 A1KC6 15 A1KC6 N3 N4 N 0 1 Y N N N N N 26.381 38.037 44.291 -10.232 -5.001 2.509 N3 A1KC6 16 A1KC6 N4 N5 N 0 1 N N N N N N 25.825 36.869 42.382 -10.755 -3.568 4.308 N4 A1KC6 17 A1KC6 O1 O2 O 0 1 N N N N N N 25.739 44.950 38.497 -4.826 1.444 -1.387 O1 A1KC6 18 A1KC6 O10 O3 O 0 1 N N N N N N 31.170 48.789 37.433 5.127 1.691 1.493 O10 A1KC6 19 A1KC6 O14 O4 O 0 1 N N N N N N 30.751 50.623 35.798 4.961 3.796 0.110 O14 A1KC6 20 A1KC6 O15 O5 O 0 1 N N N N N N 28.878 48.998 39.743 1.340 4.940 0.986 O15 A1KC6 21 A1KC6 O16 O6 O 0 1 N N N N N N 26.827 48.001 35.309 -0.815 3.841 -2.077 O16 A1KC6 22 A1KC6 O17 O7 O 0 1 N N N N N N 23.986 44.924 36.688 -4.850 3.846 -0.319 O17 A1KC6 23 A1KC6 O2 O8 O 0 1 N N N N N N 25.420 43.626 41.893 -6.818 -0.535 -0.501 O2 A1KC6 24 A1KC6 O3 O9 O 0 1 N N N N N N 28.280 44.928 40.181 -7.723 -0.861 -3.909 O3 A1KC6 25 A1KC6 O4 O10 O 0 1 N N N N N N 28.129 44.542 42.914 -8.942 -2.573 -2.470 O4 A1KC6 26 A1KC6 O5 O11 O 0 1 N N N N N N 26.312 45.752 36.278 -2.564 2.615 -0.733 O5 A1KC6 27 A1KC6 O6 O12 O 0 1 N N N N N N 25.171 47.937 37.161 -1.508 4.866 0.123 O6 A1KC6 28 A1KC6 O7 O13 O 0 1 N N N N N N 26.767 49.873 38.582 2.033 3.915 -1.214 O7 A1KC6 29 A1KC6 O8 O14 O 0 1 N N N N N N 28.953 49.739 37.332 2.799 2.755 0.893 O8 A1KC6 30 A1KC6 O9 O15 O 0 1 N N N N N N 30.783 51.116 38.319 4.413 3.982 2.567 O9 A1KC6 31 A1KC6 P P1 P 0 1 N N N N N N 25.411 44.625 36.970 -4.051 2.853 -1.303 P A1KC6 32 A1KC6 P1 P2 P 0 1 N N N N N N 26.438 47.356 36.592 -1.225 3.508 -0.695 P1 A1KC6 33 A1KC6 P2 P3 P 0 1 N N N N N N 28.060 49.122 38.496 1.623 3.582 0.168 P2 A1KC6 34 A1KC6 P3 P4 P 0 1 N N N N N N 30.473 50.198 37.192 4.339 3.072 1.241 P3 A1KC6 35 A1KC6 C11 C12 C 0 1 N N N N N N 31.960 48.568 38.615 6.537 1.630 1.720 C11 A1KC6 36 A1KC6 C12 C13 C 0 1 N N R N N N 32.307 47.107 38.708 6.958 0.173 1.921 C12 A1KC6 37 A1KC6 O13 O16 O 0 1 N N N N N N 33.448 46.962 39.579 6.846 -0.559 0.681 O13 A1KC6 38 A1KC6 C14 C14 C 0 1 N N R N N N 33.248 45.830 40.396 7.701 -1.712 0.841 C14 A1KC6 39 A1KC6 C15 C15 C 0 1 N N R N N N 31.747 45.793 40.639 8.955 -1.176 1.566 C15 A1KC6 40 A1KC6 C16 C16 C 0 1 N N S N N N 31.218 46.180 39.255 8.455 0.092 2.293 C16 A1KC6 41 A1KC6 N5 N6 N 0 1 Y N N N N N 34.075 45.969 41.590 8.064 -2.263 -0.467 N5 A1KC6 42 A1KC6 C17 C17 C 0 1 Y N N N N N 35.385 45.595 41.731 8.457 -3.552 -0.724 C17 A1KC6 43 A1KC6 C18 C18 C 0 1 Y N N N N N 35.742 45.945 43.026 8.700 -3.614 -2.107 C18 A1KC6 44 A1KC6 N6 N7 N 0 1 Y N N N N N 34.667 46.529 43.684 8.447 -2.383 -2.612 N6 A1KC6 45 A1KC6 C20 C19 C 0 1 Y N N N N N 33.708 46.518 42.792 8.069 -1.590 -1.653 C20 A1KC6 46 A1KC6 N7 N8 N 0 1 Y N N N N N 36.168 44.995 40.826 8.634 -4.644 0.012 N7 A1KC6 47 A1KC6 C22 C20 C 0 1 Y N N N N N 37.391 44.756 41.321 9.031 -5.770 -0.542 C22 A1KC6 48 A1KC6 N8 N9 N 0 1 Y N N N N N 37.871 45.037 42.541 9.271 -5.877 -1.836 N8 A1KC6 49 A1KC6 C24 C21 C 0 1 Y N N N N N 37.051 45.649 43.432 9.121 -4.839 -2.652 C24 A1KC6 50 A1KC6 O11 O17 O 0 1 N N N N N N 31.071 45.009 38.456 8.613 -0.046 3.707 O11 A1KC6 51 A1KC6 O12 O18 O 0 1 N N N N N N 31.387 44.467 41.003 9.437 -2.136 2.508 O12 A1KC6 52 A1KC6 N9 N10 N 0 1 N N N N N N 37.520 45.934 44.645 9.375 -4.961 -4.007 N9 A1KC6 53 A1KC6 H1 H1 H 0 1 N N N N N N 28.544 42.673 42.050 -9.584 -0.970 -1.314 H1 A1KC6 54 A1KC6 H2 H2 H 0 1 N N N N N N 27.441 43.024 39.975 -8.479 0.584 -2.618 H2 A1KC6 55 A1KC6 H3 H3 H 0 1 N N N N N N 25.752 41.531 40.102 -8.276 0.083 1.582 H3 A1KC6 56 A1KC6 H4 H4 H 0 1 N N N N N N 26.873 39.146 45.944 -9.751 -6.223 0.909 H4 A1KC6 57 A1KC6 H5 H5 H 0 1 N N N N N N 24.114 44.666 39.785 -6.113 1.624 -2.993 H5 A1KC6 58 A1KC6 H6 H6 H 0 1 N N N N N N 25.005 43.175 39.328 -6.835 1.926 -1.394 H6 A1KC6 59 A1KC6 H7 H7 H 0 1 N N N N N N 26.014 45.453 41.081 -5.810 -0.804 -2.313 H7 A1KC6 60 A1KC6 H9 H8 H 0 1 N N N N N N 27.486 46.812 38.662 -0.196 2.326 1.143 H9 A1KC6 61 A1KC6 H8 H9 H 0 1 N N N N N N 28.683 47.119 37.358 0.298 1.652 -0.428 H8 A1KC6 62 A1KC6 H10 H10 H 0 1 N N N N N N 26.363 43.001 43.624 -7.078 -2.587 -0.815 H10 A1KC6 63 A1KC6 H11 H11 H 0 1 N N N N N N 25.902 36.132 43.053 -10.708 -2.686 4.708 H11 A1KC6 64 A1KC6 H12 H12 H 0 1 N N N N N N 24.899 36.881 42.005 -11.207 -4.288 4.774 H12 A1KC6 65 A1KC6 H14 H13 H 0 1 N N N N N N 28.435 49.440 40.458 1.066 4.797 1.902 H14 A1KC6 66 A1KC6 H15 H14 H 0 1 N N N N N N 23.569 44.157 36.312 -4.940 3.516 0.585 H15 A1KC6 67 A1KC6 H17 H15 H 0 1 N N N N N N 29.164 44.590 40.095 -8.542 -1.003 -4.404 H17 A1KC6 68 A1KC6 H18 H16 H 0 1 N N N N N N 28.337 44.215 43.781 -9.562 -2.436 -3.199 H18 A1KC6 69 A1KC6 H16 H17 H 0 1 N N N N N N 24.849 48.620 36.585 -1.782 4.723 1.039 H16 A1KC6 70 A1KC6 H19 H18 H 0 1 N N N N N N 31.149 51.924 37.979 4.023 3.569 3.349 H19 A1KC6 71 A1KC6 H20 H19 H 0 1 N N N N N N 32.883 49.163 38.558 7.062 2.045 0.860 H20 A1KC6 72 A1KC6 H13 H20 H 0 1 N N N N N N 31.385 48.868 39.504 6.786 2.206 2.611 H13 A1KC6 73 A1KC6 H21 H21 H 0 1 N N N N N N 32.577 46.753 37.702 6.349 -0.294 2.696 H21 A1KC6 74 A1KC6 H22 H22 H 0 1 N N N N N N 33.538 44.917 39.855 7.206 -2.470 1.449 H22 A1KC6 75 A1KC6 H23 H23 H 0 1 N N N N N N 31.450 46.535 41.395 9.734 -0.924 0.846 H23 A1KC6 76 A1KC6 H24 H24 H 0 1 N N N N N N 30.269 46.727 39.352 8.986 0.974 1.933 H24 A1KC6 77 A1KC6 H25 H25 H 0 1 N N N N N N 32.719 46.906 42.985 7.800 -0.551 -1.776 H25 A1KC6 78 A1KC6 H26 H26 H 0 1 N N N N N N 38.082 44.272 40.647 9.165 -6.639 0.085 H26 A1KC6 79 A1KC6 H27 H27 H 0 1 N N N N N N 30.389 44.458 38.823 9.535 -0.101 3.996 H27 A1KC6 80 A1KC6 H28 H28 H 0 1 N N N N N N 31.734 44.269 41.865 10.224 -1.851 2.993 H28 A1KC6 81 A1KC6 H30 H29 H 0 1 N N N N N N 38.470 45.631 44.715 9.262 -4.195 -4.592 H30 A1KC6 82 A1KC6 H29 H30 H 0 1 N N N N N N 37.473 46.921 44.797 9.665 -5.812 -4.371 H29 A1KC6 83 # loop_ _chem_comp_bond.comp_id _chem_comp_bond.atom_id_1 _chem_comp_bond.atom_id_2 _chem_comp_bond.value_order _chem_comp_bond.pdbx_aromatic_flag _chem_comp_bond.pdbx_stereo_config _chem_comp_bond.pdbx_ordinal A1KC6 O16 P1 DOUB N N 1 A1KC6 O14 P3 DOUB N N 2 A1KC6 O5 P1 SING N N 3 A1KC6 O5 P SING N N 4 A1KC6 P1 O6 SING N N 5 A1KC6 P1 C10 SING N N 6 A1KC6 O P DOUB N N 7 A1KC6 O17 P SING N N 8 A1KC6 P O1 SING N N 9 A1KC6 P3 O8 SING N N 10 A1KC6 P3 O10 SING N N 11 A1KC6 P3 O9 SING N N 12 A1KC6 O8 P2 SING N N 13 A1KC6 O10 C11 SING N N 14 A1KC6 C10 P2 SING N N 15 A1KC6 O11 C16 SING N N 16 A1KC6 P2 O7 DOUB N N 17 A1KC6 P2 O15 SING N N 18 A1KC6 O1 C SING N N 19 A1KC6 C11 C12 SING N N 20 A1KC6 C12 C16 SING N N 21 A1KC6 C12 O13 SING N N 22 A1KC6 C16 C15 SING N N 23 A1KC6 O13 C14 SING N N 24 A1KC6 C C1 SING N N 25 A1KC6 O3 C4 SING N N 26 A1KC6 C14 C15 SING N N 27 A1KC6 C14 N5 SING N N 28 A1KC6 C15 O12 SING N N 29 A1KC6 C4 C1 SING N N 30 A1KC6 C4 C3 SING N N 31 A1KC6 C1 O2 SING N N 32 A1KC6 N7 C22 DOUB Y N 33 A1KC6 N7 C17 SING Y N 34 A1KC6 C5 N1 DOUB Y N 35 A1KC6 C5 N SING Y N 36 A1KC6 N1 C6 SING Y N 37 A1KC6 C22 N8 SING Y N 38 A1KC6 N5 C17 SING Y N 39 A1KC6 N5 C20 SING Y N 40 A1KC6 C17 C18 DOUB Y N 41 A1KC6 O2 C2 SING N N 42 A1KC6 C3 C2 SING N N 43 A1KC6 C3 O4 SING N N 44 A1KC6 N C2 SING N N 45 A1KC6 N C7 SING Y N 46 A1KC6 C6 C9 DOUB Y N 47 A1KC6 C6 C7 SING Y N 48 A1KC6 N4 C9 SING N N 49 A1KC6 N8 C24 DOUB Y N 50 A1KC6 C20 N6 DOUB Y N 51 A1KC6 C9 N3 SING Y N 52 A1KC6 C18 C24 SING Y N 53 A1KC6 C18 N6 SING Y N 54 A1KC6 C7 N2 DOUB Y N 55 A1KC6 C24 N9 SING N N 56 A1KC6 N3 C8 DOUB Y N 57 A1KC6 N2 C8 SING Y N 58 A1KC6 C3 H1 SING N N 59 A1KC6 C4 H2 SING N N 60 A1KC6 C5 H3 SING N N 61 A1KC6 C8 H4 SING N N 62 A1KC6 C H5 SING N N 63 A1KC6 C H6 SING N N 64 A1KC6 C1 H7 SING N N 65 A1KC6 C10 H9 SING N N 66 A1KC6 C10 H8 SING N N 67 A1KC6 C2 H10 SING N N 68 A1KC6 N4 H11 SING N N 69 A1KC6 N4 H12 SING N N 70 A1KC6 O15 H14 SING N N 71 A1KC6 O17 H15 SING N N 72 A1KC6 O3 H17 SING N N 73 A1KC6 O4 H18 SING N N 74 A1KC6 O6 H16 SING N N 75 A1KC6 O9 H19 SING N N 76 A1KC6 C11 H20 SING N N 77 A1KC6 C11 H13 SING N N 78 A1KC6 C12 H21 SING N N 79 A1KC6 C14 H22 SING N N 80 A1KC6 C15 H23 SING N N 81 A1KC6 C16 H24 SING N N 82 A1KC6 C20 H25 SING N N 83 A1KC6 C22 H26 SING N N 84 A1KC6 O11 H27 SING N N 85 A1KC6 O12 H28 SING N N 86 A1KC6 N9 H30 SING N N 87 A1KC6 N9 H29 SING N N 88 # loop_ _pdbx_chem_comp_descriptor.comp_id _pdbx_chem_comp_descriptor.type _pdbx_chem_comp_descriptor.program _pdbx_chem_comp_descriptor.program_version _pdbx_chem_comp_descriptor.descriptor A1KC6 InChI InChI 1.06 "InChI=1S/C21H30N10O18P4/c22-16-10-18(26-3-24-16)30(5-28-10)20-14(34)12(32)8(46-20)1-44-52(40,41)48-50(36,37)7-51(38,39)49-53(42,43)45-2-9-13(33)15(35)21(47-9)31-6-29-11-17(23)25-4-27-19(11)31/h3-6,8-9,12-15,20-21,32-35H,1-2,7H2,(H,36,37)(H,38,39)(H,40,41)(H,42,43)(H2,22,24,26)(H2,23,25,27)/t8-,9-,12-,13-,14-,15-,20-,21-/m1/s1" A1KC6 InChIKey InChI 1.06 YUVFOJNMZCEVNK-NAGRZYTCSA-N A1KC6 SMILES_CANONICAL CACTVS 3.385 "Nc1ncnc2n(cnc12)[C@@H]3O[C@H](CO[P](O)(=O)O[P](O)(=O)C[P](O)(=O)O[P](O)(=O)OC[C@H]4O[C@H]([C@H](O)[C@@H]4O)n5cnc6c(N)ncnc56)[C@@H](O)[C@H]3O" A1KC6 SMILES CACTVS 3.385 "Nc1ncnc2n(cnc12)[CH]3O[CH](CO[P](O)(=O)O[P](O)(=O)C[P](O)(=O)O[P](O)(=O)OC[CH]4O[CH]([CH](O)[CH]4O)n5cnc6c(N)ncnc56)[CH](O)[CH]3O" A1KC6 SMILES_CANONICAL "OpenEye OEToolkits" 2.0.7 "c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O)OP(=O)(CP(=O)(O)OP(=O)(O)OC[C@@H]4[C@H]([C@H]([C@@H](O4)n5cnc6c5ncnc6N)O)O)O)O)O)N" A1KC6 SMILES "OpenEye OEToolkits" 2.0.7 "c1nc(c2c(n1)n(cn2)C3C(C(C(O3)COP(=O)(O)OP(=O)(CP(=O)(O)OP(=O)(O)OCC4C(C(C(O4)n5cnc6c5ncnc6N)O)O)O)O)O)N" # _pdbx_chem_comp_identifier.comp_id A1KC6 _pdbx_chem_comp_identifier.type "SYSTEMATIC NAME" _pdbx_chem_comp_identifier.program "OpenEye OEToolkits" _pdbx_chem_comp_identifier.program_version 2.0.7 _pdbx_chem_comp_identifier.identifier "[[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-[[[[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-oxidanyl-phosphoryl]methyl]phosphinic acid" # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site A1KC6 "Create component" 2026-07-02 PDBE A1KC6 "Initial release" 2026-10-07 RCSB #