data_7RZK
#
_model_server_result.job_id            6bcyprpTIhLuwsfr8zT8lg 
_model_server_result.datetime_utc      '2024-11-15 22:05:07' 
_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          7rzk 
#
_model_server_params.name     atom_site 
_model_server_params.value    '{"label_asym_id":"H","auth_seq_id":307}' 
#
_entry.id    7RZK 
#
_exptl.entry_id    7RZK 
_exptl.method      'X-RAY DIFFRACTION' 
#
_entity.details                     ? 
_entity.formula_weight              58.933 
_entity.id                          4 
_entity.src_method                  syn 
_entity.type                        non-polymer 
_entity.pdbx_description            'COBALT (II) ION' 
_entity.pdbx_number_of_molecules    6 
_entity.pdbx_parent_entity_id       . 
_entity.pdbx_mutation               ? 
_entity.pdbx_fragment               ? 
_entity.pdbx_ec                     ? 
#
_cell.angle_alpha         90 
_cell.angle_beta          90 
_cell.angle_gamma         90 
_cell.entry_id            7RZK 
_cell.length_a            43.005 
_cell.length_b            57.521 
_cell.length_c            81.248 
_cell.Z_PDB               4 
_cell.pdbx_unique_axis    ? 
#
_symmetry.entry_id                 7RZK 
_symmetry.cell_setting             ? 
_symmetry.Int_Tables_number        19 
_symmetry.space_group_name_Hall    'P 2ac 2ab' 
_symmetry.space_group_name_H-M     'P 21 21 21' 
#
_pdbx_struct_assembly.method_details        ? 
_pdbx_struct_assembly.oligomeric_details    monomeric 
_pdbx_struct_assembly.oligomeric_count      1 
_pdbx_struct_assembly.details               author_defined_assembly 
_pdbx_struct_assembly.id                    1 
#
_pdbx_struct_assembly_gen.asym_id_list       A,B,C,D,E,F,G,H,I,J,K 
_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 
#
loop_
_struct_asym.details
_struct_asym.entity_id
_struct_asym.id
_struct_asym.pdbx_modified
_struct_asym.pdbx_blank_PDB_chainid_flag
? 4 E N N 
? 4 F N N 
? 4 G N N 
? 4 H N N 
? 4 I N N 
? 4 J N 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 58 A ASP 38 1_555 C MG MG . A MG 302 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.042 ? 
metalc ? metalc2 A OD2 ASP 58 A ASP 38 1_555 D MG MG . A MG 303 1_555 ? ? ? ? A ? ? ? ? ? ? ? 2.192 ? 
metalc ? metalc3 A OD2 ASP 58 A ASP 38 1_555 E CO CO . A CO 304 1_555 ? ? ? ? B ? ? ? ? ? ? ? 2.073 ? 
metalc ? metalc4 A OD1 ASP 60 A ASP 40 1_555 C MG MG . A MG 302 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.003 ? 
metalc ? metalc5 A OD2 ASP 60 A ASP 40 1_555 D MG MG . A MG 303 1_555 ? ? ? ? A ? ? ? ? ? ? ? 1.99 ? 
metalc ? metalc6 A OD2 ASP 60 A ASP 40 1_555 E CO CO . A CO 304 1_555 ? ? ? ? B ? ? ? ? ? ? ? 2.138 ? 
metalc ? metalc7 A OE1 GLU 77 A GLU 57 1_555 H CO CO . A CO 307 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.628 ? 
metalc ? metalc8 A OE2 GLU 123 A GLU 103 1_555 F CO CO . A CO 305 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.412 ? 
metalc ? metalc9 B O2B ADP . A ADP 301 1_555 C MG MG . A MG 302 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.05 ? 
metalc ? metalc10 B O1A ADP . A ADP 301 1_555 C MG MG . A MG 302 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.177 ? 
metalc ? metalc11 B O2B ADP . A ADP 301 1_555 D MG MG . A MG 303 1_555 ? ? ? ? A ? ? ? ? ? ? ? 2.365 ? 
metalc ? metalc12 B O2B ADP . A ADP 301 1_555 E CO CO . A CO 304 1_555 ? ? ? ? B ? ? ? ? ? ? ? 2.199 ? 
metalc ? metalc13 C MG MG . A MG 302 1_555 K O HOH . A HOH 432 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.161 ? 
metalc ? metalc14 D MG MG . A MG 303 1_555 K O HOH . A HOH 420 1_555 ? A ? ? ? ? ? ? ? ? ? ? 2.148 ? 
metalc ? metalc15 D MG MG . A MG 303 1_555 K O HOH . A HOH 481 1_555 ? A ? ? ? ? ? ? ? ? ? ? 2.157 ? 
metalc ? metalc16 D MG MG . A MG 303 1_555 K O HOH . A HOH 491 1_555 ? A ? ? ? ? ? ? ? ? ? ? 2.198 ? 
metalc ? metalc17 E CO CO . A CO 304 1_555 K O HOH . A HOH 420 1_555 ? B ? ? ? ? ? ? ? ? ? ? 2.238 ? 
metalc ? metalc18 E CO CO . A CO 304 1_555 K O HOH . A HOH 481 1_555 ? B ? ? ? ? ? ? ? ? ? ? 2.007 ? 
metalc ? metalc19 E CO CO . A CO 304 1_555 K O HOH . A HOH 491 1_555 ? B ? ? ? ? ? ? ? ? ? ? 2.365 ? 
metalc ? metalc20 F CO CO . A CO 305 1_555 K O HOH . A HOH 469 2_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.338 ? 
metalc ? metalc21 F CO CO . A CO 305 1_555 K O HOH . A HOH 475 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.676 ? 
metalc ? metalc22 F CO CO . A CO 305 1_555 K O HOH . A HOH 533 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.341 ? 
metalc ? metalc23 F CO CO . A CO 305 1_555 K O HOH . A HOH 550 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.652 ? 
metalc ? metalc24 G CO CO . A CO 306 1_555 K O HOH . A HOH 532 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.787 ? 
metalc ? metalc25 G CO CO . A CO 306 1_555 K O HOH . A HOH 555 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.601 ? 
metalc ? metalc26 I CO CO . A CO 308 1_555 K O HOH . A HOH 414 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.705 ? 
metalc ? metalc27 I CO CO . A CO 308 1_555 K O HOH . A HOH 421 4_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.167 ? 
metalc ? metalc28 I CO CO . A CO 308 1_555 K O HOH . A HOH 545 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.757 ? 
metalc ? metalc29 I CO CO . A CO 308 1_555 K O HOH . A HOH 573 4_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.146 ? 
metalc ? metalc30 J CO CO . A CO 309 1_555 K O HOH . A HOH 408 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.666 ? 
metalc ? metalc31 J CO CO . A CO 309 1_555 K O HOH . A HOH 514 3_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.546 ? 
metalc ? metalc32 J CO CO . A CO 309 1_555 K O HOH . A HOH 516 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.665 ? 
#
_chem_comp.formula           'Co 2' 
_chem_comp.formula_weight    58.933 
_chem_comp.id                CO 
_chem_comp.mon_nstd_flag     . 
_chem_comp.name              'COBALT (II) ION' 
_chem_comp.type              non-polymer 
_chem_comp.pdbx_synonyms     ? 
#
_atom_sites.entry_id                     7RZK 
_atom_sites.fract_transf_matrix[1][1]    0.023253 
_atom_sites.fract_transf_matrix[1][2]    0 
_atom_sites.fract_transf_matrix[1][3]    0 
_atom_sites.fract_transf_matrix[2][1]    0 
_atom_sites.fract_transf_matrix[2][2]    0.017385 
_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]    0.012308 
_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 ADP A 1 301 301 ADP ADP . 
C 3 MG A 1 302 1 MG MG . 
D 3 MG A 1 303 2 MG MG . 
E 4 CO A 1 304 2 CO CO . 
F 4 CO A 1 305 3 CO CO . 
G 4 CO A 1 306 4 CO CO . 
H 4 CO A 1 307 5 CO CO . 
I 4 CO A 1 308 6 CO CO . 
J 4 CO A 1 309 1 CO CO . 
K 5 HOH A 1 401 166 HOH HOH . 
K 5 HOH A 2 402 179 HOH HOH . 
K 5 HOH A 3 403 181 HOH HOH . 
K 5 HOH A 4 404 87 HOH HOH . 
K 5 HOH A 5 405 122 HOH HOH . 
K 5 HOH A 6 406 85 HOH HOH . 
K 5 HOH A 7 407 142 HOH HOH . 
K 5 HOH A 8 408 183 HOH HOH . 
K 5 HOH A 9 409 153 HOH HOH . 
K 5 HOH A 10 410 161 HOH HOH . 
K 5 HOH A 11 411 77 HOH HOH . 
K 5 HOH A 12 412 188 HOH HOH . 
K 5 HOH A 13 413 60 HOH HOH . 
K 5 HOH A 14 414 133 HOH HOH . 
K 5 HOH A 15 415 54 HOH HOH . 
K 5 HOH A 16 416 42 HOH HOH . 
K 5 HOH A 17 417 109 HOH HOH . 
K 5 HOH A 18 418 71 HOH HOH . 
K 5 HOH A 19 419 32 HOH HOH . 
K 5 HOH A 20 420 64 HOH HOH . 
K 5 HOH A 21 421 134 HOH HOH . 
K 5 HOH A 22 422 37 HOH HOH . 
K 5 HOH A 23 423 47 HOH HOH . 
K 5 HOH A 24 424 12 HOH HOH . 
K 5 HOH A 25 425 41 HOH HOH . 
K 5 HOH A 26 426 61 HOH HOH . 
K 5 HOH A 27 427 24 HOH HOH . 
K 5 HOH A 28 428 19 HOH HOH . 
K 5 HOH A 29 429 57 HOH HOH . 
K 5 HOH A 30 430 35 HOH HOH . 
K 5 HOH A 31 431 14 HOH HOH . 
K 5 HOH A 32 432 6 HOH HOH . 
K 5 HOH A 33 433 27 HOH HOH . 
K 5 HOH A 34 434 1 HOH HOH . 
K 5 HOH A 35 435 34 HOH HOH . 
K 5 HOH A 36 436 139 HOH HOH . 
K 5 HOH A 37 437 18 HOH HOH . 
K 5 HOH A 38 438 8 HOH HOH . 
K 5 HOH A 39 439 69 HOH HOH . 
K 5 HOH A 40 440 15 HOH HOH . 
K 5 HOH A 41 441 38 HOH HOH . 
K 5 HOH A 42 442 7 HOH HOH . 
K 5 HOH A 43 443 43 HOH HOH . 
K 5 HOH A 44 444 10 HOH HOH . 
K 5 HOH A 45 445 74 HOH HOH . 
K 5 HOH A 46 446 108 HOH HOH . 
K 5 HOH A 47 447 131 HOH HOH . 
K 5 HOH A 48 448 49 HOH HOH . 
K 5 HOH A 49 449 31 HOH HOH . 
K 5 HOH A 50 450 33 HOH HOH . 
K 5 HOH A 51 451 16 HOH HOH . 
K 5 HOH A 52 452 20 HOH HOH . 
K 5 HOH A 53 453 58 HOH HOH . 
K 5 HOH A 54 454 11 HOH HOH . 
K 5 HOH A 55 455 78 HOH HOH . 
K 5 HOH A 56 456 4 HOH HOH . 
K 5 HOH A 57 457 67 HOH HOH . 
K 5 HOH A 58 458 26 HOH HOH . 
K 5 HOH A 59 459 17 HOH HOH . 
K 5 HOH A 60 460 9 HOH HOH . 
K 5 HOH A 61 461 51 HOH HOH . 
K 5 HOH A 62 462 95 HOH HOH . 
K 5 HOH A 63 463 144 HOH HOH . 
K 5 HOH A 64 464 25 HOH HOH . 
K 5 HOH A 65 465 52 HOH HOH . 
K 5 HOH A 66 466 88 HOH HOH . 
K 5 HOH A 67 467 28 HOH HOH . 
K 5 HOH A 68 468 155 HOH HOH . 
K 5 HOH A 69 469 65 HOH HOH . 
K 5 HOH A 70 470 70 HOH HOH . 
K 5 HOH A 71 471 53 HOH HOH . 
K 5 HOH A 72 472 40 HOH HOH . 
K 5 HOH A 73 473 21 HOH HOH . 
K 5 HOH A 74 474 90 HOH HOH . 
K 5 HOH A 75 475 112 HOH HOH . 
K 5 HOH A 76 476 165 HOH HOH . 
K 5 HOH A 77 477 103 HOH HOH . 
K 5 HOH A 78 478 75 HOH HOH . 
K 5 HOH A 79 479 178 HOH HOH . 
K 5 HOH A 80 480 45 HOH HOH . 
K 5 HOH A 81 481 63 HOH HOH . 
K 5 HOH A 82 482 79 HOH HOH . 
K 5 HOH A 83 483 98 HOH HOH . 
K 5 HOH A 84 484 50 HOH HOH . 
K 5 HOH A 85 485 173 HOH HOH . 
K 5 HOH A 86 486 172 HOH HOH . 
K 5 HOH A 87 487 5 HOH HOH . 
K 5 HOH A 88 488 55 HOH HOH . 
K 5 HOH A 89 489 105 HOH HOH . 
K 5 HOH A 90 490 100 HOH HOH . 
K 5 HOH A 91 491 62 HOH HOH . 
K 5 HOH A 92 492 167 HOH HOH . 
K 5 HOH A 93 493 30 HOH HOH . 
K 5 HOH A 94 494 39 HOH HOH . 
K 5 HOH A 95 495 68 HOH HOH . 
K 5 HOH A 96 496 73 HOH HOH . 
K 5 HOH A 97 497 147 HOH HOH . 
K 5 HOH A 98 498 96 HOH HOH . 
K 5 HOH A 99 499 3 HOH HOH . 
K 5 HOH A 100 500 93 HOH HOH . 
K 5 HOH A 101 501 86 HOH HOH . 
K 5 HOH A 102 502 23 HOH HOH . 
K 5 HOH A 103 503 72 HOH HOH . 
K 5 HOH A 104 504 44 HOH HOH . 
K 5 HOH A 105 505 66 HOH HOH . 
K 5 HOH A 106 506 102 HOH HOH . 
K 5 HOH A 107 507 132 HOH HOH . 
K 5 HOH A 108 508 163 HOH HOH . 
K 5 HOH A 109 509 13 HOH HOH . 
K 5 HOH A 110 510 101 HOH HOH . 
K 5 HOH A 111 511 59 HOH HOH . 
K 5 HOH A 112 512 2 HOH HOH . 
K 5 HOH A 113 513 110 HOH HOH . 
K 5 HOH A 114 514 182 HOH HOH . 
K 5 HOH A 115 515 123 HOH HOH . 
K 5 HOH A 116 516 190 HOH HOH . 
K 5 HOH A 117 517 125 HOH HOH . 
K 5 HOH A 118 518 36 HOH HOH . 
K 5 HOH A 119 519 81 HOH HOH . 
K 5 HOH A 120 520 158 HOH HOH . 
K 5 HOH A 121 521 148 HOH HOH . 
K 5 HOH A 122 522 83 HOH HOH . 
K 5 HOH A 123 523 127 HOH HOH . 
K 5 HOH A 124 524 164 HOH HOH . 
K 5 HOH A 125 525 169 HOH HOH . 
K 5 HOH A 126 526 94 HOH HOH . 
K 5 HOH A 127 527 130 HOH HOH . 
K 5 HOH A 128 528 170 HOH HOH . 
K 5 HOH A 129 529 140 HOH HOH . 
K 5 HOH A 130 530 145 HOH HOH . 
K 5 HOH A 131 531 129 HOH HOH . 
K 5 HOH A 132 532 151 HOH HOH . 
K 5 HOH A 133 533 113 HOH HOH . 
K 5 HOH A 134 534 48 HOH HOH . 
K 5 HOH A 135 535 154 HOH HOH . 
K 5 HOH A 136 536 141 HOH HOH . 
K 5 HOH A 137 537 138 HOH HOH . 
K 5 HOH A 138 538 171 HOH HOH . 
K 5 HOH A 139 539 143 HOH HOH . 
K 5 HOH A 140 540 99 HOH HOH . 
K 5 HOH A 141 541 124 HOH HOH . 
K 5 HOH A 142 542 186 HOH HOH . 
K 5 HOH A 143 543 89 HOH HOH . 
K 5 HOH A 144 544 29 HOH HOH . 
K 5 HOH A 145 545 135 HOH HOH . 
K 5 HOH A 146 546 106 HOH HOH . 
K 5 HOH A 147 547 180 HOH HOH . 
K 5 HOH A 148 548 92 HOH HOH . 
K 5 HOH A 149 549 187 HOH HOH . 
K 5 HOH A 150 550 114 HOH HOH . 
K 5 HOH A 151 551 82 HOH HOH . 
K 5 HOH A 152 552 76 HOH HOH . 
K 5 HOH A 153 553 80 HOH HOH . 
K 5 HOH A 154 554 156 HOH HOH . 
K 5 HOH A 155 555 149 HOH HOH . 
K 5 HOH A 156 556 157 HOH HOH . 
K 5 HOH A 157 557 104 HOH HOH . 
K 5 HOH A 158 558 111 HOH HOH . 
K 5 HOH A 159 559 126 HOH HOH . 
K 5 HOH A 160 560 189 HOH HOH . 
K 5 HOH A 161 561 185 HOH HOH . 
K 5 HOH A 162 562 97 HOH HOH . 
K 5 HOH A 163 563 84 HOH HOH . 
K 5 HOH A 164 564 168 HOH HOH . 
K 5 HOH A 165 565 184 HOH HOH . 
K 5 HOH A 166 566 136 HOH HOH . 
K 5 HOH A 167 567 146 HOH HOH . 
K 5 HOH A 168 568 152 HOH HOH . 
K 5 HOH A 169 569 128 HOH HOH . 
K 5 HOH A 170 570 91 HOH HOH . 
K 5 HOH A 171 571 162 HOH HOH . 
K 5 HOH A 172 572 56 HOH HOH . 
K 5 HOH A 173 573 137 HOH HOH . 
K 5 HOH A 174 574 46 HOH HOH . 
K 5 HOH A 175 575 150 HOH HOH . 
K 5 HOH A 176 576 107 HOH HOH . 
K 5 HOH A 177 577 22 HOH HOH . 
K 5 HOH A 178 578 160 HOH HOH . 
K 5 HOH A 179 579 159 HOH HOH . 
#
_atom_site.group_PDB             HETATM 
_atom_site.id                    1 
_atom_site.type_symbol           CO 
_atom_site.label_atom_id         CO 
_atom_site.label_comp_id         CO 
_atom_site.label_seq_id          . 
_atom_site.label_alt_id          . 
_atom_site.pdbx_PDB_ins_code     . 
_atom_site.label_asym_id         H 
_atom_site.label_entity_id       4 
_atom_site.Cartn_x               23.88 
_atom_site.Cartn_y               -4.246 
_atom_site.Cartn_z               13.706 
_atom_site.occupancy             1 
_atom_site.B_iso_or_equiv        111.59 
_atom_site.pdbx_formal_charge    ? 
_atom_site.auth_atom_id          CO 
_atom_site.auth_comp_id          CO 
_atom_site.auth_seq_id           307 
_atom_site.auth_asym_id          A 
_atom_site.pdbx_PDB_model_num    1 
#
_model_server_stats.io_time_ms              13 
_model_server_stats.parse_time_ms           22 
_model_server_stats.create_model_time_ms    19 
_model_server_stats.query_time_ms           353 
_model_server_stats.encode_time_ms          16 
_model_server_stats.element_count           1 
#