data_5N5J # _model_server_result.job_id qn30n0Ml50y3ewyfDEO3WA _model_server_result.datetime_utc '2024-10-11 01:21:21' _model_server_result.server_version 0.9.12 _model_server_result.query_name ligand _model_server_result.source_id pdb-bcif _model_server_result.entry_id 5n5j # _model_server_params.name atom_site _model_server_params.value '{"label_asym_id":"H","auth_seq_id":307}' # _entry.id 5N5J # _exptl.entry_id 5N5J _exptl.method 'X-RAY DIFFRACTION' # _entity.details ? _entity.formula_weight 327.484 _entity.id 5 _entity.src_method syn _entity.type non-polymer _entity.pdbx_description '3-[5-[(3~{S})-1,2-dithiolan-3-yl]pentanoylamino]propane-1-sulfonic acid' _entity.pdbx_number_of_molecules 1 _entity.pdbx_parent_entity_id . _entity.pdbx_mutation ? _entity.pdbx_fragment ? _entity.pdbx_ec ? # _cell.angle_alpha 90 _cell.angle_beta 114.55 _cell.angle_gamma 90 _cell.entry_id 5N5J _cell.length_a 50.926 _cell.length_b 60.47 _cell.length_c 53.844 _cell.Z_PDB 4 _cell.pdbx_unique_axis ? # _symmetry.entry_id 5N5J _symmetry.cell_setting ? _symmetry.Int_Tables_number 5 _symmetry.space_group_name_Hall ? _symmetry.space_group_name_H-M 'C 1 2 1' # _pdbx_struct_assembly.method_details PISA _pdbx_struct_assembly.oligomeric_details monomeric _pdbx_struct_assembly.oligomeric_count 1 _pdbx_struct_assembly.details author_and_software_defined_assembly _pdbx_struct_assembly.id 1 # _pdbx_struct_assembly_gen.asym_id_list A,B,C,D,E,F,G,H,I _pdbx_struct_assembly_gen.assembly_id 1 _pdbx_struct_assembly_gen.oper_expression 1 # _pdbx_struct_oper_list.id 1 _pdbx_struct_oper_list.type 'identity operation' _pdbx_struct_oper_list.name 1_555 _pdbx_struct_oper_list.symmetry_operation x,y,z _pdbx_struct_oper_list.matrix[1][1] 1 _pdbx_struct_oper_list.matrix[1][2] 0 _pdbx_struct_oper_list.matrix[1][3] 0 _pdbx_struct_oper_list.matrix[2][1] 0 _pdbx_struct_oper_list.matrix[2][2] 1 _pdbx_struct_oper_list.matrix[2][3] 0 _pdbx_struct_oper_list.matrix[3][1] 0 _pdbx_struct_oper_list.matrix[3][2] 0 _pdbx_struct_oper_list.matrix[3][3] 1 _pdbx_struct_oper_list.vector[1] 0 _pdbx_struct_oper_list.vector[2] 0 _pdbx_struct_oper_list.vector[3] 0 # _struct_asym.details ? _struct_asym.entity_id 5 _struct_asym.id H _struct_asym.pdbx_modified N _struct_asym.pdbx_blank_PDB_chainid_flag N # loop_ _struct_conn.conn_type_id _struct_conn.details _struct_conn.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_auth_asym_id _struct_conn.ptnr1_auth_comp_id _struct_conn.ptnr1_auth_seq_id _struct_conn.ptnr1_symmetry _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_auth_asym_id _struct_conn.ptnr2_auth_comp_id _struct_conn.ptnr2_auth_seq_id _struct_conn.ptnr2_symmetry _struct_conn.pdbx_ptnr1_PDB_ins_code _struct_conn.pdbx_ptnr1_label_alt_id _struct_conn.pdbx_ptnr1_standard_comp_id _struct_conn.pdbx_ptnr2_PDB_ins_code _struct_conn.pdbx_ptnr2_label_alt_id _struct_conn.pdbx_ptnr3_PDB_ins_code _struct_conn.pdbx_ptnr3_label_alt_id _struct_conn.pdbx_ptnr3_label_asym_id _struct_conn.pdbx_ptnr3_label_atom_id _struct_conn.pdbx_ptnr3_label_comp_id _struct_conn.pdbx_ptnr3_label_seq_id _struct_conn.pdbx_PDB_id _struct_conn.pdbx_dist_value _struct_conn.pdbx_value_order metalc ? metalc1 A OD1 ASP 19 A ASP 124 1_555 E CA CA . A CA 304 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.501 ? metalc ? metalc2 A OD2 ASP 19 A ASP 124 1_555 E CA CA . A CA 304 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.386 ? metalc ? metalc3 A O ASP 53 A ASP 158 1_555 D CA CA . A CA 303 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.306 ? metalc ? metalc4 A NE2 HIS 63 A HIS 168 1_555 C ZN ZN . A ZN 302 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.052 ? metalc ? metalc5 A OD2 ASP 65 A ASP 170 1_555 C ZN ZN . A ZN 302 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 1.996 ? metalc ? metalc6 A OD1 ASP 70 A ASP 175 1_555 F CA CA . A CA 305 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.347 ? metalc ? metalc7 A O GLY 71 A GLY 176 1_555 F CA CA . A CA 305 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.323 ? metalc ? metalc8 A O GLY 73 A GLY 178 1_555 F CA CA . A CA 305 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.338 ? metalc ? metalc9 A O ILE 75 A ILE 180 1_555 F CA CA . A CA 305 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.312 ? metalc ? metalc10 A NE2 HIS 78 A HIS 183 1_555 C ZN ZN . A ZN 302 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.042 ? metalc ? metalc11 A O GLY 85 A GLY 190 1_555 D CA CA . A CA 303 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.37 ? metalc ? metalc12 A O GLY 87 A GLY 192 1_555 D CA CA . A CA 303 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.267 ? metalc ? metalc13 A OD1 ASP 89 A ASP 194 1_555 D CA CA . A CA 303 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.369 ? metalc ? metalc14 A ND1 HIS 91 A HIS 196 1_555 C ZN ZN . A ZN 302 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.041 ? metalc ? metalc15 A OD2 ASP 93 A ASP 198 1_555 F CA CA . A CA 305 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.292 ? metalc ? metalc16 A O GLU 94 A GLU 199 1_555 E CA CA . A CA 304 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.284 ? metalc ? metalc17 A OE2 GLU 94 A GLU 199 1_555 E CA CA . A CA 304 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.365 ? metalc ? metalc18 A O GLU 96 A GLU 201 1_555 E CA CA . A CA 304 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.376 ? metalc ? metalc19 A OE2 GLU 96 A GLU 201 1_555 F CA CA . A CA 305 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.253 ? metalc ? metalc20 A NE2 HIS 113 A HIS 218 1_555 B ZN ZN . A ZN 301 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.075 ? metalc ? metalc21 A NE2 HIS 117 A HIS 222 1_555 B ZN ZN . A ZN 301 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.121 ? metalc ? metalc22 A NE2 HIS 123 A HIS 228 1_555 B ZN ZN . A ZN 301 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.102 ? metalc ? metalc23 B ZN ZN . A ZN 301 1_555 G O2 HAE . A HAE 306 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.091 ? metalc ? metalc24 B ZN ZN . A ZN 301 1_555 G O HAE . A HAE 306 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.17 ? metalc ? metalc25 D CA CA . A CA 303 1_555 I O HOH . A HOH 416 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.337 ? metalc ? metalc26 D CA CA . A CA 303 1_555 I O HOH . A HOH 431 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.347 ? metalc ? metalc27 E CA CA . A CA 304 1_555 I O HOH . A HOH 473 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.328 ? metalc ? metalc28 E CA CA . A CA 304 1_555 I O HOH . A HOH 498 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.423 ? # _chem_comp.formula 'C11 H21 N O4 S3' _chem_comp.formula_weight 327.484 _chem_comp.id 8NT _chem_comp.mon_nstd_flag . _chem_comp.name '3-[5-[(3~{S})-1,2-dithiolan-3-yl]pentanoylamino]propane-1-sulfonic acid' _chem_comp.type non-polymer _chem_comp.pdbx_synonyms ? # loop_ _chem_comp_bond.atom_id_1 _chem_comp_bond.atom_id_2 _chem_comp_bond.comp_id _chem_comp_bond.value_order _chem_comp_bond.pdbx_ordinal _chem_comp_bond.pdbx_stereo_config _chem_comp_bond.pdbx_aromatic_flag C5 C6 8NT sing 1 n n C5 S2 8NT sing 2 n n C6 C2 8NT sing 3 n n C2 C1 8NT sing 4 n n C2 S1 8NT sing 5 n n C1 C7 8NT sing 6 n n S2 S1 8NT sing 7 n n C7 C8 8NT sing 8 n n C8 C9 8NT sing 9 n n C9 C10 8NT sing 10 n n C10 N1 8NT sing 11 n n C10 O1 8NT doub 12 n n N1 C13 8NT sing 13 n n C13 C14 8NT sing 14 n n C15 C14 8NT sing 15 n n C15 S3 8NT sing 16 n n O3 S3 8NT doub 17 n n O2 S3 8NT doub 18 n n S3 O4 8NT sing 19 n n C1 H1 8NT sing 20 n n C1 H2 8NT sing 21 n n C2 H3 8NT sing 22 n n C13 H4 8NT sing 23 n n C13 H5 8NT sing 24 n n C14 H6 8NT sing 25 n n C14 H7 8NT sing 26 n n C15 H8 8NT sing 27 n n C15 H9 8NT sing 28 n n C5 H10 8NT sing 29 n n C5 H11 8NT sing 30 n n C6 H12 8NT sing 31 n n C6 H13 8NT sing 32 n n C7 H14 8NT sing 33 n n C7 H15 8NT sing 34 n n C8 H16 8NT sing 35 n n C8 H17 8NT sing 36 n n C9 H18 8NT sing 37 n n C9 H19 8NT sing 38 n n N1 H20 8NT sing 39 n n O4 H21 8NT sing 40 n n # _atom_sites.entry_id 5N5J _atom_sites.fract_transf_matrix[1][1] 0.019636 _atom_sites.fract_transf_matrix[1][2] 0 _atom_sites.fract_transf_matrix[1][3] 0.008969 _atom_sites.fract_transf_matrix[2][1] 0 _atom_sites.fract_transf_matrix[2][2] 0.016537 _atom_sites.fract_transf_matrix[2][3] 0 _atom_sites.fract_transf_matrix[3][1] 0 _atom_sites.fract_transf_matrix[3][2] 0 _atom_sites.fract_transf_matrix[3][3] 0.020418 _atom_sites.fract_transf_vector[1] 0 _atom_sites.fract_transf_vector[2] 0 _atom_sites.fract_transf_vector[3] 0 # loop_ _pdbx_nonpoly_scheme.asym_id _pdbx_nonpoly_scheme.entity_id _pdbx_nonpoly_scheme.mon_id _pdbx_nonpoly_scheme.pdb_strand_id _pdbx_nonpoly_scheme.ndb_seq_num _pdbx_nonpoly_scheme.pdb_seq_num _pdbx_nonpoly_scheme.auth_seq_num _pdbx_nonpoly_scheme.pdb_mon_id _pdbx_nonpoly_scheme.auth_mon_id _pdbx_nonpoly_scheme.pdb_ins_code B 2 ZN A 1 301 264 ZN ZN . C 2 ZN A 1 302 265 ZN ZN . D 3 CA A 1 303 266 CA CA . E 3 CA A 1 304 267 CA CA . F 3 CA A 1 305 268 CA CA . G 4 HAE A 1 306 900 HAE HAE . H 5 8NT A 1 307 901 8NT GPE . I 6 HOH A 1 401 155 HOH HOH . I 6 HOH A 2 402 7 HOH HOH . I 6 HOH A 3 403 99 HOH HOH . I 6 HOH A 4 404 102 HOH HOH . I 6 HOH A 5 405 67 HOH HOH . I 6 HOH A 6 406 35 HOH HOH . I 6 HOH A 7 407 33 HOH HOH . I 6 HOH A 8 408 104 HOH HOH . I 6 HOH A 9 409 26 HOH HOH . I 6 HOH A 10 410 111 HOH HOH . I 6 HOH A 11 411 64 HOH HOH . I 6 HOH A 12 412 65 HOH HOH . I 6 HOH A 13 413 128 HOH HOH . I 6 HOH A 14 414 119 HOH HOH . I 6 HOH A 15 415 20 HOH HOH . I 6 HOH A 16 416 62 HOH HOH . I 6 HOH A 17 417 75 HOH HOH . I 6 HOH A 18 418 122 HOH HOH . I 6 HOH A 19 419 21 HOH HOH . I 6 HOH A 20 420 55 HOH HOH . I 6 HOH A 21 421 16 HOH HOH . I 6 HOH A 22 422 12 HOH HOH . I 6 HOH A 23 423 98 HOH HOH . I 6 HOH A 24 424 51 HOH HOH . I 6 HOH A 25 425 22 HOH HOH . I 6 HOH A 26 426 117 HOH HOH . I 6 HOH A 27 427 13 HOH HOH . I 6 HOH A 28 428 49 HOH HOH . I 6 HOH A 29 429 68 HOH HOH . I 6 HOH A 30 430 139 HOH HOH . I 6 HOH A 31 431 5 HOH HOH . I 6 HOH A 32 432 11 HOH HOH . I 6 HOH A 33 433 105 HOH HOH . I 6 HOH A 34 434 84 HOH HOH . I 6 HOH A 35 435 18 HOH HOH . I 6 HOH A 36 436 79 HOH HOH . I 6 HOH A 37 437 145 HOH HOH . I 6 HOH A 38 438 147 HOH HOH . I 6 HOH A 39 439 108 HOH HOH . I 6 HOH A 40 440 10 HOH HOH . I 6 HOH A 41 441 138 HOH HOH . I 6 HOH A 42 442 54 HOH HOH . I 6 HOH A 43 443 27 HOH HOH . I 6 HOH A 44 444 58 HOH HOH . I 6 HOH A 45 445 85 HOH HOH . I 6 HOH A 46 446 124 HOH HOH . I 6 HOH A 47 447 15 HOH HOH . I 6 HOH A 48 448 41 HOH HOH . I 6 HOH A 49 449 150 HOH HOH . I 6 HOH A 50 450 8 HOH HOH . I 6 HOH A 51 451 101 HOH HOH . I 6 HOH A 52 452 81 HOH HOH . I 6 HOH A 53 453 59 HOH HOH . I 6 HOH A 54 454 56 HOH HOH . I 6 HOH A 55 455 74 HOH HOH . I 6 HOH A 56 456 36 HOH HOH . I 6 HOH A 57 457 120 HOH HOH . I 6 HOH A 58 458 140 HOH HOH . I 6 HOH A 59 459 42 HOH HOH . I 6 HOH A 60 460 34 HOH HOH . I 6 HOH A 61 461 52 HOH HOH . I 6 HOH A 62 462 86 HOH HOH . I 6 HOH A 63 463 38 HOH HOH . I 6 HOH A 64 464 31 HOH HOH . I 6 HOH A 65 465 46 HOH HOH . I 6 HOH A 66 466 146 HOH HOH . I 6 HOH A 67 467 24 HOH HOH . I 6 HOH A 68 468 148 HOH HOH . I 6 HOH A 69 469 70 HOH HOH . I 6 HOH A 70 470 71 HOH HOH . I 6 HOH A 71 471 131 HOH HOH . I 6 HOH A 72 472 28 HOH HOH . I 6 HOH A 73 473 3 HOH HOH . I 6 HOH A 74 474 118 HOH HOH . I 6 HOH A 75 475 47 HOH HOH . I 6 HOH A 76 476 9 HOH HOH . I 6 HOH A 77 477 88 HOH HOH . I 6 HOH A 78 478 100 HOH HOH . I 6 HOH A 79 479 63 HOH HOH . I 6 HOH A 80 480 43 HOH HOH . I 6 HOH A 81 481 39 HOH HOH . I 6 HOH A 82 482 130 HOH HOH . I 6 HOH A 83 483 106 HOH HOH . I 6 HOH A 84 484 25 HOH HOH . I 6 HOH A 85 485 112 HOH HOH . I 6 HOH A 86 486 125 HOH HOH . I 6 HOH A 87 487 53 HOH HOH . I 6 HOH A 88 488 107 HOH HOH . I 6 HOH A 89 489 6 HOH HOH . I 6 HOH A 90 490 2 HOH HOH . I 6 HOH A 91 491 83 HOH HOH . I 6 HOH A 92 492 82 HOH HOH . I 6 HOH A 93 493 50 HOH HOH . I 6 HOH A 94 494 17 HOH HOH . I 6 HOH A 95 495 40 HOH HOH . I 6 HOH A 96 496 4 HOH HOH . I 6 HOH A 97 497 154 HOH HOH . I 6 HOH A 98 498 23 HOH HOH . I 6 HOH A 99 499 66 HOH HOH . I 6 HOH A 100 500 132 HOH HOH . I 6 HOH A 101 501 29 HOH HOH . I 6 HOH A 102 502 96 HOH HOH . I 6 HOH A 103 503 158 HOH HOH . I 6 HOH A 104 504 73 HOH HOH . I 6 HOH A 105 505 134 HOH HOH . I 6 HOH A 106 506 137 HOH HOH . I 6 HOH A 107 507 121 HOH HOH . I 6 HOH A 108 508 80 HOH HOH . I 6 HOH A 109 509 44 HOH HOH . I 6 HOH A 110 510 129 HOH HOH . I 6 HOH A 111 511 78 HOH HOH . I 6 HOH A 112 512 91 HOH HOH . I 6 HOH A 113 513 87 HOH HOH . I 6 HOH A 114 514 60 HOH HOH . I 6 HOH A 115 515 94 HOH HOH . I 6 HOH A 116 516 114 HOH HOH . I 6 HOH A 117 517 153 HOH HOH . I 6 HOH A 118 518 133 HOH HOH . I 6 HOH A 119 519 144 HOH HOH . I 6 HOH A 120 520 72 HOH HOH . I 6 HOH A 121 521 136 HOH HOH . I 6 HOH A 122 522 151 HOH HOH . I 6 HOH A 123 523 57 HOH HOH . I 6 HOH A 124 524 77 HOH HOH . I 6 HOH A 125 525 149 HOH HOH . I 6 HOH A 126 526 103 HOH HOH . I 6 HOH A 127 527 126 HOH HOH . I 6 HOH A 128 528 69 HOH HOH . I 6 HOH A 129 529 113 HOH HOH . I 6 HOH A 130 530 92 HOH HOH . I 6 HOH A 131 531 141 HOH HOH . I 6 HOH A 132 532 142 HOH HOH . I 6 HOH A 133 533 61 HOH HOH . I 6 HOH A 134 534 76 HOH HOH . I 6 HOH A 135 535 143 HOH HOH . I 6 HOH A 136 536 30 HOH HOH . I 6 HOH A 137 537 123 HOH HOH . I 6 HOH A 138 538 90 HOH HOH . I 6 HOH A 139 539 156 HOH HOH . I 6 HOH A 140 540 1 HOH HOH . I 6 HOH A 141 541 157 HOH HOH . # loop_ _atom_site.group_PDB _atom_site.id _atom_site.type_symbol _atom_site.label_atom_id _atom_site.label_comp_id _atom_site.label_seq_id _atom_site.label_alt_id _atom_site.pdbx_PDB_ins_code _atom_site.label_asym_id _atom_site.label_entity_id _atom_site.Cartn_x _atom_site.Cartn_y _atom_site.Cartn_z _atom_site.occupancy _atom_site.B_iso_or_equiv _atom_site.pdbx_formal_charge _atom_site.auth_atom_id _atom_site.auth_comp_id _atom_site.auth_seq_id _atom_site.auth_asym_id _atom_site.pdbx_PDB_model_num HETATM 1 C C1 8NT . . . H 5 8.973 -6.988 15.138 1 23.69 ? C1 8NT 307 A 1 HETATM 2 C C2 8NT . . . H 5 7.647 -7.041 14.795 1 20.83 ? C2 8NT 307 A 1 HETATM 3 C C10 8NT . . . H 5 11.764 -4.515 18.153 1 34.18 ? C10 8NT 307 A 1 HETATM 4 C C13 8NT . . . H 5 13.52 -5.154 19.646 1 26.98 ? C13 8NT 307 A 1 HETATM 5 C C14 8NT . . . H 5 12.587 -6.026 20.558 1 40.31 ? C14 8NT 307 A 1 HETATM 6 C C15 8NT . . . H 5 12.478 -7.409 19.884 1 52.92 ? C15 8NT 307 A 1 HETATM 7 C C5 8NT . . . H 5 5.693 -8.361 14.333 1 27.82 ? C5 8NT 307 A 1 HETATM 8 C C6 8NT . . . H 5 7.105 -8.47 14.573 1 9.77 ? C6 8NT 307 A 1 HETATM 9 C C7 8NT . . . H 5 9.239 -5.808 16.096 1 31.25 ? C7 8NT 307 A 1 HETATM 10 C C8 8NT . . . H 5 10.705 -5.914 16.459 1 41.7 ? C8 8NT 307 A 1 HETATM 11 C C9 8NT . . . H 5 11.264 -4.548 16.767 1 34.68 ? C9 8NT 307 A 1 HETATM 12 N N1 8NT . . . H 5 13.057 -5.118 18.407 1 29.96 ? N1 8NT 307 A 1 HETATM 13 O O1 8NT . . . H 5 11.112 -4.009 18.992 1 55.85 ? O1 8NT 307 A 1 HETATM 14 O O2 8NT . . . H 5 11.464 -9.698 20.756 1 47.04 ? O2 8NT 307 A 1 HETATM 15 O O3 8NT . . . H 5 13.806 -10.062 20.505 1 40.1 ? O3 8NT 307 A 1 HETATM 16 O O4 8NT . . . H 5 13.001 -8.641 22.299 1 98.45 ? O4 8NT 307 A 1 HETATM 17 S S1 8NT . . . H 5 6.733 -6.409 16.285 1 46.89 ? S1 8NT 307 A 1 HETATM 18 S S2 8NT . . . H 5 5.06 -7.146 15.418 1 50.94 ? S2 8NT 307 A 1 HETATM 19 S S3 8NT . . . H 5 12.765 -8.956 20.854 1 79.73 ? S3 8NT 307 A 1 # _model_server_stats.io_time_ms 11 _model_server_stats.parse_time_ms 11 _model_server_stats.create_model_time_ms 2 _model_server_stats.query_time_ms 318 _model_server_stats.encode_time_ms 7 _model_server_stats.element_count 19 #