data_A1C5A # _chem_comp.id A1C5A _chem_comp.name "(5S)-2-amino-8-{5-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]oxy}phosphoryl]-beta-D-ribofuranosyl}imidazo[1,2-a][1,3,5]triazin-4(8H)-one" _chem_comp.type non-polymer _chem_comp.pdbx_type HETAIN _chem_comp.formula "C10 H16 N5 O14 P3" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2026-01-20 _chem_comp.pdbx_modified_date 2026-08-28 _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 523.180 _chem_comp.one_letter_code ? _chem_comp.three_letter_code A1C5A _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 9ZP4 _chem_comp.pdbx_subcomponent_list ? _chem_comp.pdbx_processing_site RCSB _chem_comp.pdbx_pcm ? # 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 A1C5A N1 N1 N 0 1 N N N N N N 190.826 181.231 190.718 6.447 -2.921 2.609 N1 A1C5A 1 A1C5A C5 C1 C 0 1 N N N N N N 195.658 182.670 192.704 5.159 -0.814 -2.200 C5 A1C5A 2 A1C5A C6 C2 C 0 1 N N N N N N 195.391 182.439 194.051 4.321 0.135 -1.791 C6 A1C5A 3 A1C5A "C1'" C3 C 0 1 N N R N N N 193.463 181.631 195.328 3.423 0.949 0.438 "C1'" A1C5A 4 A1C5A "C2'" C4 C 0 1 N N R N N N 193.247 180.030 195.240 3.872 2.420 0.293 "C2'" A1C5A 5 A1C5A "C3'" C5 C 0 1 N N S N N N 194.395 179.553 195.608 2.554 3.223 0.362 "C3'" A1C5A 6 A1C5A "O3'" O1 O 0 1 N N N N N N 194.353 178.156 195.919 2.567 4.111 1.481 "O3'" A1C5A 7 A1C5A "C4'" C6 C 0 1 N N R N N N 194.715 180.439 196.856 1.464 2.143 0.541 "C4'" A1C5A 8 A1C5A "O4'" O2 O 0 1 N N N N N N 194.274 181.813 196.372 2.047 0.938 -0.001 "O4'" A1C5A 9 A1C5A "C5'" C7 C 0 1 N N N N N N 196.078 180.406 197.210 0.204 2.523 -0.239 "C5'" A1C5A 10 A1C5A "O5'" O3 O 0 1 N N N N N N 196.266 181.283 198.275 -0.828 1.573 0.033 "O5'" A1C5A 11 A1C5A C1 C8 C 0 1 N N N N N N 192.116 181.624 191.181 6.162 -2.435 1.354 C1 A1C5A 12 A1C5A C3 C9 C 0 1 N N N N N N 194.212 182.384 190.726 6.470 -2.527 -0.934 C3 A1C5A 13 A1C5A C7 C10 C 0 1 N N N N N N 193.614 181.955 192.895 5.038 -0.936 0.014 C7 A1C5A 14 A1C5A N2 N2 N 0 1 N N N N N N 193.038 182.028 190.304 6.734 -2.988 0.289 N2 A1C5A 15 A1C5A N4 N3 N 0 1 N N N N N N 194.512 182.346 192.047 5.617 -1.494 -1.086 N4 A1C5A 16 A1C5A N7 N4 N 0 1 N N N N N N 194.137 182.009 194.145 4.237 0.078 -0.413 N7 A1C5A 17 A1C5A N9 N5 N 0 1 N N N N N N 192.394 181.585 192.456 5.319 -1.412 1.218 N9 A1C5A 18 A1C5A "O2'" O4 O 0 1 N N N N N N 192.154 179.589 196.135 4.739 2.787 1.367 "O2'" A1C5A 19 A1C5A O5 O5 O 0 1 N N N N N N 195.132 182.790 189.842 6.997 -3.036 -1.909 O5 A1C5A 20 A1C5A OP1 O6 O 0 1 N N N N N N 198.483 179.896 198.834 -3.234 0.513 0.004 OP1 A1C5A 21 A1C5A OP2 O7 O 0 1 N N N N N N 197.284 181.211 200.673 -2.188 1.459 -2.214 OP2 A1C5A 22 A1C5A OP3 O8 O 0 1 N N N N N N 198.539 182.468 198.991 -2.885 2.990 -0.333 OP3 A1C5A 23 A1C5A OP4 O9 O 0 1 N N N N N N 200.198 178.275 200.068 -5.111 -1.268 0.470 OP4 A1C5A 24 A1C5A OP5 O10 O 0 1 N N N N N N 198.176 177.334 198.781 -5.374 0.478 -1.334 OP5 A1C5A 25 A1C5A OP6 O11 O 0 1 N N N N N N 197.749 178.516 200.863 -5.523 1.261 1.061 OP6 A1C5A 26 A1C5A OP7 O12 O 0 1 N N N N N N 202.105 180.019 200.515 -6.881 -2.186 -1.077 OP7 A1C5A 27 A1C5A OP8 O13 O 0 1 N N N N N N 201.740 178.180 202.142 -5.901 -3.771 0.625 OP8 A1C5A 28 A1C5A OP9 O14 O 0 1 N N N N N N 200.201 180.033 202.001 -7.529 -1.833 1.337 OP9 A1C5A 29 A1C5A P1 P1 P 0 1 N N N N N N 197.651 181.222 199.238 -2.297 1.663 -0.621 P1 A1C5A 30 A1C5A P2 P2 P 0 1 N N N N N N 198.603 178.493 199.657 -4.823 0.251 0.021 P2 A1C5A 31 A1C5A P3 P3 P 0 1 N N N N N N 201.090 179.161 201.214 -6.367 -2.263 0.308 P3 A1C5A 32 A1C5A H1 H1 H 0 1 N N N N N N 190.616 181.259 189.741 6.035 -2.520 3.390 H1 A1C5A 33 A1C5A H2 H2 H 0 1 N N N N N N 190.132 180.928 191.370 7.057 -3.668 2.713 H2 A1C5A 34 A1C5A H3 H3 H 0 1 N N N N N N 196.580 183.030 192.272 5.431 -1.020 -3.224 H3 A1C5A 35 A1C5A H4 H4 H 0 1 N N N N N N 196.079 182.583 194.871 3.796 0.832 -2.428 H4 A1C5A 36 A1C5A H5 H5 H 0 1 N N N N N N 192.487 182.127 195.432 3.491 0.633 1.479 H5 A1C5A 37 A1C5A H6 H6 H 0 1 N N N N N N 192.998 179.778 194.199 4.364 2.576 -0.667 H6 A1C5A 38 A1C5A H7 H7 H 0 1 N N N N N N 195.174 179.739 194.854 2.396 3.778 -0.563 H7 A1C5A 39 A1C5A H8 H8 H 0 1 N N N N N N 195.218 177.863 196.181 3.271 4.774 1.450 H8 A1C5A 40 A1C5A H9 H9 H 0 1 N N N N N N 194.078 180.121 197.695 1.231 2.011 1.598 H9 A1C5A 41 A1C5A H10 H10 H 0 1 N N N N N N 196.361 179.387 197.511 -0.126 3.516 0.066 H10 A1C5A 42 A1C5A H11 H11 H 0 1 N N N N N N 196.694 180.720 196.354 0.424 2.525 -1.306 H11 A1C5A 43 A1C5A H13 H13 H 0 1 N N N N N N 192.047 178.648 196.065 5.051 3.701 1.326 H13 A1C5A 44 A1C5A H14 H14 H 0 1 N N N N N N 197.673 181.962 201.106 -1.810 0.609 -2.477 H14 A1C5A 45 A1C5A H15 H15 H 0 1 N N N N N N 197.124 177.802 200.822 -5.209 1.168 1.971 H15 A1C5A 46 A1C5A H16 H16 H 0 1 N N N N N N 202.683 178.290 202.110 -6.608 -4.426 0.547 H16 A1C5A 47 A1C5A H17 H17 H 0 1 N N N N N N 200.467 180.938 201.891 -7.261 -1.860 2.266 H17 A1C5A 48 # 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 A1C5A O5 C3 DOUB N N 1 A1C5A N2 C3 SING N N 2 A1C5A N2 C1 DOUB N N 3 A1C5A N1 C1 SING N N 4 A1C5A C3 N4 SING N N 5 A1C5A C1 N9 SING N N 6 A1C5A N4 C5 SING N N 7 A1C5A N4 C7 SING N N 8 A1C5A N9 C7 DOUB N N 9 A1C5A C5 C6 DOUB N N 10 A1C5A C7 N7 SING N N 11 A1C5A C6 N7 SING N N 12 A1C5A N7 "C1'" SING N N 13 A1C5A "C2'" "C1'" SING N N 14 A1C5A "C2'" "C3'" SING N N 15 A1C5A "C2'" "O2'" SING N N 16 A1C5A "C1'" "O4'" SING N N 17 A1C5A "C3'" "O3'" SING N N 18 A1C5A "C3'" "C4'" SING N N 19 A1C5A "O4'" "C4'" SING N N 20 A1C5A "C4'" "C5'" SING N N 21 A1C5A "C5'" "O5'" SING N N 22 A1C5A "O5'" P1 SING N N 23 A1C5A OP5 P2 DOUB N N 24 A1C5A OP1 P1 SING N N 25 A1C5A OP1 P2 SING N N 26 A1C5A OP3 P1 DOUB N N 27 A1C5A P1 OP2 SING N N 28 A1C5A P2 OP4 SING N N 29 A1C5A P2 OP6 SING N N 30 A1C5A OP4 P3 SING N N 31 A1C5A OP7 P3 DOUB N N 32 A1C5A P3 OP9 SING N N 33 A1C5A P3 OP8 SING N N 34 A1C5A N1 H1 SING N N 35 A1C5A N1 H2 SING N N 36 A1C5A C5 H3 SING N N 37 A1C5A C6 H4 SING N N 38 A1C5A "C1'" H5 SING N N 39 A1C5A "C2'" H6 SING N N 40 A1C5A "C3'" H7 SING N N 41 A1C5A "O3'" H8 SING N N 42 A1C5A "C4'" H9 SING N N 43 A1C5A "C5'" H10 SING N N 44 A1C5A "C5'" H11 SING N N 45 A1C5A "O2'" H13 SING N N 46 A1C5A OP2 H14 SING N N 47 A1C5A OP6 H15 SING N N 48 A1C5A OP8 H16 SING N N 49 A1C5A OP9 H17 SING N N 50 # 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 A1C5A SMILES ACDLabs 14.52 "O=P(O)(O)OP(=O)(O)OP(=O)(O)OCC1OC(N2C=CN3C(=O)N=C(N)N=C32)C(O)C1O" A1C5A InChI InChI 1.06 "InChI=1S/C10H16N5O14P3/c11-8-12-9-14(1-2-15(9)10(18)13-8)7-6(17)5(16)4(27-7)3-26-31(22,23)29-32(24,25)28-30(19,20)21/h1-2,4-7,16-17H,3H2,(H,22,23)(H,24,25)(H2,11,13,18)(H2,19,20,21)/t4-,5-,6-,7-/m1/s1" A1C5A InChIKey InChI 1.06 IQZUXNWUNRGQBD-DBRKOABJSA-N A1C5A SMILES_CANONICAL CACTVS 3.385 "NC1=NC(=O)N2C=CN([C@@H]3O[C@H](CO[P](O)(=O)O[P](O)(=O)O[P](O)(O)=O)[C@@H](O)[C@H]3O)C2=N1" A1C5A SMILES CACTVS 3.385 "NC1=NC(=O)N2C=CN([CH]3O[CH](CO[P](O)(=O)O[P](O)(=O)O[P](O)(O)=O)[CH](O)[CH]3O)C2=N1" A1C5A SMILES_CANONICAL "OpenEye OEToolkits" 3.1.0.0 "C1=CN2C(=NC(=NC2=O)N)N1[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O)OP(=O)(O)OP(=O)(O)O)O)O" A1C5A SMILES "OpenEye OEToolkits" 3.1.0.0 "C1=CN2C(=NC(=NC2=O)N)N1C3C(C(C(O3)COP(=O)(O)OP(=O)(O)OP(=O)(O)O)O)O" # loop_ _pdbx_chem_comp_identifier.comp_id _pdbx_chem_comp_identifier.type _pdbx_chem_comp_identifier.program _pdbx_chem_comp_identifier.program_version _pdbx_chem_comp_identifier.identifier A1C5A "SYSTEMATIC NAME" ACDLabs 14.52 "(5S)-2-amino-8-{5-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]oxy}phosphoryl]-beta-D-ribofuranosyl}imidazo[1,2-a][1,3,5]triazin-4(8H)-one" A1C5A "SYSTEMATIC NAME" "OpenEye OEToolkits" 3.1.0.0 "[[(2~{R},3~{S},4~{R},5~{R})-5-(2-azanyl-4-oxidanylidene-imidazo[1,2-a][1,3,5]triazin-8-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate" # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site A1C5A "Create component" 2026-01-20 RCSB A1C5A "Initial release" 2026-09-02 RCSB #