data_1PE8 # _model_server_result.job_id kd0XTD_FVd3RkCiQ3sB0Kg _model_server_result.datetime_utc '2024-11-22 22:51:25' _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 1pe8 # _model_server_params.name atom_site _model_server_params.value '{"label_asym_id":"B","auth_seq_id":317}' # _entry.id 1PE8 # _exptl.entry_id 1PE8 _exptl.method 'X-RAY DIFFRACTION' # _entity.details ? _entity.formula_weight 65.409 _entity.id 2 _entity.src_method syn _entity.type non-polymer _entity.pdbx_description 'ZINC ION' _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 90 _cell.angle_gamma 120 _cell.entry_id 1PE8 _cell.length_a 93.7 _cell.length_b 93.7 _cell.length_c 131.6 _cell.Z_PDB 12 _cell.pdbx_unique_axis ? # _symmetry.entry_id 1PE8 _symmetry.cell_setting ? _symmetry.Int_Tables_number 178 _symmetry.space_group_name_Hall . _symmetry.space_group_name_H-M 'P 61 2 2' # _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,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 # _struct_asym.details ? _struct_asym.entity_id 2 _struct_asym.id B _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 covale ? covale1 G P BR5 . A BR5 322 1_555 H N LEU . A LEU 323 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 1.705 ? covale ? covale2 G CA1 BR5 . A BR5 322 1_555 I CA LEN . A LEN 324 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 1.581 ? covale ? covale3 H C LEU . A LEU 323 1_555 I N LEN . A LEN 324 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 1.339 ? metalc ? metalc1 A OD1 ASP 57 A ASP 57 1_555 E CA CA . A CA 320 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.396 ? metalc ? metalc2 A OD2 ASP 57 A ASP 57 1_555 E CA CA . A CA 320 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.587 ? metalc ? metalc3 A OD1 ASP 59 A ASP 59 1_555 E CA CA . A CA 320 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.368 ? metalc ? metalc4 A O GLN 61 A GLN 61 1_555 E CA CA . A CA 320 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.312 ? metalc ? metalc5 A OD2 ASP 138 A ASP 138 1_555 C CA CA . A CA 318 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.312 ? metalc ? metalc6 A NE2 HIS 142 A HIS 142 1_555 B ZN ZN . A ZN 317 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 1.958 ? metalc ? metalc7 A NE2 HIS 146 A HIS 146 1_555 B ZN ZN . A ZN 317 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 1.972 ? metalc ? metalc8 A OE2 GLU 166 A GLU 166 1_555 B ZN ZN . A ZN 317 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 1.982 ? metalc ? metalc9 A OE1 GLU 177 A GLU 177 1_555 C CA CA . A CA 318 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.44 ? metalc ? metalc10 A OE2 GLU 177 A GLU 177 1_555 C CA CA . A CA 318 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.833 ? metalc ? metalc11 A OE2 GLU 177 A GLU 177 1_555 D CA CA . A CA 319 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.243 ? metalc ? metalc12 A O ASN 183 A ASN 183 1_555 D CA CA . A CA 319 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.358 ? metalc ? metalc13 A OD1 ASP 185 A ASP 185 1_555 C CA CA . A CA 318 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.452 ? metalc ? metalc14 A OD2 ASP 185 A ASP 185 1_555 D CA CA . A CA 319 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.266 ? metalc ? metalc15 A O GLU 187 A GLU 187 1_555 C CA CA . A CA 318 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.287 ? metalc ? metalc16 A OE1 GLU 190 A GLU 190 1_555 C CA CA . A CA 318 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.441 ? metalc ? metalc17 A OE2 GLU 190 A GLU 190 1_555 C CA CA . A CA 318 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.513 ? metalc ? metalc18 A OE2 GLU 190 A GLU 190 1_555 D CA CA . A CA 319 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.178 ? metalc ? metalc19 A O TYR 193 A TYR 193 1_555 F CA CA . A CA 321 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.431 ? metalc ? metalc20 A O THR 194 A THR 194 1_555 F CA CA . A CA 321 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.347 ? metalc ? metalc21 A OG1 THR 194 A THR 194 1_555 F CA CA . A CA 321 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.323 ? metalc ? metalc22 A O ILE 197 A ILE 197 1_555 F CA CA . A CA 321 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.275 ? metalc ? metalc23 A OD1 ASP 200 A ASP 200 1_555 F CA CA . A CA 321 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.267 ? metalc ? metalc24 B ZN ZN . A ZN 317 1_555 G OP1 BR5 . A BR5 322 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.018 ? metalc ? metalc25 C CA CA . A CA 318 1_555 K O HOH . A HOH 346 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.544 ? metalc ? metalc26 D CA CA . A CA 319 1_555 K O HOH . A HOH 353 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.438 ? metalc ? metalc27 D CA CA . A CA 319 1_555 K O HOH . A HOH 475 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.347 ? metalc ? metalc28 E CA CA . A CA 320 1_555 K O HOH . A HOH 419 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.45 ? metalc ? metalc29 E CA CA . A CA 320 1_555 K O HOH . A HOH 482 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.384 ? metalc ? metalc30 E CA CA . A CA 320 1_555 K O HOH . A HOH 503 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.333 ? metalc ? metalc31 F CA CA . A CA 321 1_555 K O HOH . A HOH 354 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.496 ? metalc ? metalc32 F CA CA . A CA 321 1_555 K O HOH . A HOH 480 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.315 ? # _chem_comp.formula 'Zn 2' _chem_comp.formula_weight 65.409 _chem_comp.id ZN _chem_comp.mon_nstd_flag . _chem_comp.name 'ZINC ION' _chem_comp.type non-polymer _chem_comp.pdbx_synonyms ? # _atom_sites.entry_id 1PE8 _atom_sites.fract_transf_matrix[1][1] 0.010672 _atom_sites.fract_transf_matrix[1][2] 0.006162 _atom_sites.fract_transf_matrix[1][3] 0 _atom_sites.fract_transf_matrix[2][1] 0 _atom_sites.fract_transf_matrix[2][2] 0.012323 _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] 0.007599 _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 1 317 317 ZN ZN . C 3 CA A 1 318 318 CA CA . D 3 CA A 1 319 319 CA CA . E 3 CA A 1 320 320 CA CA . F 3 CA A 1 321 321 CA CA . G 4 BR5 A 1 322 322 BR5 BR5 . H 5 LEU A 1 323 323 LEU LEU . I 6 LEN A 1 324 324 LEN NLE . J 7 DMS A 1 325 325 DMS DMS . K 8 HOH A 1 331 331 HOH HOH . K 8 HOH A 2 332 332 HOH HOH . K 8 HOH A 3 334 334 HOH HOH . K 8 HOH A 4 335 335 HOH HOH . K 8 HOH A 5 337 337 HOH HOH . K 8 HOH A 6 338 338 HOH HOH . K 8 HOH A 7 339 339 HOH HOH . K 8 HOH A 8 340 340 HOH HOH . K 8 HOH A 9 341 341 HOH HOH . K 8 HOH A 10 342 342 HOH HOH . K 8 HOH A 11 343 343 HOH HOH . K 8 HOH A 12 344 344 HOH HOH . K 8 HOH A 13 345 345 HOH HOH . K 8 HOH A 14 346 346 HOH HOH . K 8 HOH A 15 347 347 HOH HOH . K 8 HOH A 16 348 348 HOH HOH . K 8 HOH A 17 349 349 HOH HOH . K 8 HOH A 18 350 350 HOH HOH . K 8 HOH A 19 351 351 HOH HOH . K 8 HOH A 20 352 352 HOH HOH . K 8 HOH A 21 353 353 HOH HOH . K 8 HOH A 22 354 354 HOH HOH . K 8 HOH A 23 355 355 HOH HOH . K 8 HOH A 24 356 356 HOH HOH . K 8 HOH A 25 357 357 HOH HOH . K 8 HOH A 26 359 359 HOH HOH . K 8 HOH A 27 361 361 HOH HOH . K 8 HOH A 28 362 362 HOH HOH . K 8 HOH A 29 366 366 HOH HOH . K 8 HOH A 30 368 368 HOH HOH . K 8 HOH A 31 371 371 HOH HOH . K 8 HOH A 32 373 373 HOH HOH . K 8 HOH A 33 374 374 HOH HOH . K 8 HOH A 34 377 377 HOH HOH . K 8 HOH A 35 379 379 HOH HOH . K 8 HOH A 36 380 380 HOH HOH . K 8 HOH A 37 381 381 HOH HOH . K 8 HOH A 38 383 383 HOH HOH . K 8 HOH A 39 384 384 HOH HOH . K 8 HOH A 40 385 385 HOH HOH . K 8 HOH A 41 386 386 HOH HOH . K 8 HOH A 42 387 387 HOH HOH . K 8 HOH A 43 391 391 HOH HOH . K 8 HOH A 44 393 393 HOH HOH . K 8 HOH A 45 395 395 HOH HOH . K 8 HOH A 46 397 397 HOH HOH . K 8 HOH A 47 398 398 HOH HOH . K 8 HOH A 48 403 403 HOH HOH . K 8 HOH A 49 404 404 HOH HOH . K 8 HOH A 50 405 405 HOH HOH . K 8 HOH A 51 407 407 HOH HOH . K 8 HOH A 52 408 408 HOH HOH . K 8 HOH A 53 410 410 HOH HOH . K 8 HOH A 54 412 412 HOH HOH . K 8 HOH A 55 413 413 HOH HOH . K 8 HOH A 56 414 414 HOH HOH . K 8 HOH A 57 415 415 HOH HOH . K 8 HOH A 58 419 419 HOH HOH . K 8 HOH A 59 420 420 HOH HOH . K 8 HOH A 60 422 422 HOH HOH . K 8 HOH A 61 423 423 HOH HOH . K 8 HOH A 62 424 424 HOH HOH . K 8 HOH A 63 425 425 HOH HOH . K 8 HOH A 64 426 426 HOH HOH . K 8 HOH A 65 428 428 HOH HOH . K 8 HOH A 66 444 444 HOH HOH . K 8 HOH A 67 450 450 HOH HOH . K 8 HOH A 68 454 454 HOH HOH . K 8 HOH A 69 455 455 HOH HOH . K 8 HOH A 70 457 457 HOH HOH . K 8 HOH A 71 459 459 HOH HOH . K 8 HOH A 72 463 463 HOH HOH . K 8 HOH A 73 464 464 HOH HOH . K 8 HOH A 74 465 465 HOH HOH . K 8 HOH A 75 468 468 HOH HOH . K 8 HOH A 76 470 470 HOH HOH . K 8 HOH A 77 475 475 HOH HOH . K 8 HOH A 78 476 476 HOH HOH . K 8 HOH A 79 477 477 HOH HOH . K 8 HOH A 80 478 478 HOH HOH . K 8 HOH A 81 479 479 HOH HOH . K 8 HOH A 82 480 480 HOH HOH . K 8 HOH A 83 481 481 HOH HOH . K 8 HOH A 84 482 482 HOH HOH . K 8 HOH A 85 483 483 HOH HOH . K 8 HOH A 86 484 484 HOH HOH . K 8 HOH A 87 487 487 HOH HOH . K 8 HOH A 88 491 491 HOH HOH . K 8 HOH A 89 493 493 HOH HOH . K 8 HOH A 90 495 495 HOH HOH . K 8 HOH A 91 496 496 HOH HOH . K 8 HOH A 92 501 501 HOH HOH . K 8 HOH A 93 502 502 HOH HOH . K 8 HOH A 94 503 503 HOH HOH . K 8 HOH A 95 504 504 HOH HOH . K 8 HOH A 96 506 506 HOH HOH . K 8 HOH A 97 507 507 HOH HOH . K 8 HOH A 98 508 508 HOH HOH . K 8 HOH A 99 509 509 HOH HOH . K 8 HOH A 100 510 510 HOH HOH . K 8 HOH A 101 512 512 HOH HOH . K 8 HOH A 102 519 519 HOH HOH . K 8 HOH A 103 521 521 HOH HOH . K 8 HOH A 104 523 523 HOH HOH . K 8 HOH A 105 524 524 HOH HOH . K 8 HOH A 106 525 525 HOH HOH . K 8 HOH A 107 527 527 HOH HOH . K 8 HOH A 108 528 528 HOH HOH . K 8 HOH A 109 530 530 HOH HOH . K 8 HOH A 110 531 531 HOH HOH . K 8 HOH A 111 534 534 HOH HOH . K 8 HOH A 112 535 535 HOH HOH . K 8 HOH A 113 536 536 HOH HOH . K 8 HOH A 114 537 537 HOH HOH . K 8 HOH A 115 538 538 HOH HOH . K 8 HOH A 116 539 539 HOH HOH . K 8 HOH A 117 540 540 HOH HOH . K 8 HOH A 118 542 542 HOH HOH . K 8 HOH A 119 543 543 HOH HOH . K 8 HOH A 120 544 544 HOH HOH . K 8 HOH A 121 600 600 HOH HOH . K 8 HOH A 122 601 601 HOH HOH . K 8 HOH A 123 602 602 HOH HOH . K 8 HOH A 124 603 603 HOH HOH . K 8 HOH A 125 604 604 HOH HOH . K 8 HOH A 126 605 605 HOH HOH . K 8 HOH A 127 606 606 HOH HOH . K 8 HOH A 128 607 607 HOH HOH . K 8 HOH A 129 608 608 HOH HOH . K 8 HOH A 130 609 609 HOH HOH . K 8 HOH A 131 610 610 HOH HOH . K 8 HOH A 132 611 611 HOH HOH . K 8 HOH A 133 612 612 HOH HOH . K 8 HOH A 134 613 613 HOH HOH . K 8 HOH A 135 614 614 HOH HOH . K 8 HOH A 136 615 615 HOH HOH . K 8 HOH A 137 619 619 HOH HOH . K 8 HOH A 138 620 620 HOH HOH . K 8 HOH A 139 621 621 HOH HOH . K 8 HOH A 140 623 623 HOH HOH . K 8 HOH A 141 624 624 HOH HOH . K 8 HOH A 142 626 626 HOH HOH . K 8 HOH A 143 628 628 HOH HOH . K 8 HOH A 144 629 629 HOH HOH . K 8 HOH A 145 630 630 HOH HOH . K 8 HOH A 146 650 650 HOH HOH . K 8 HOH A 147 652 652 HOH HOH . K 8 HOH A 148 653 653 HOH HOH . K 8 HOH A 149 654 654 HOH HOH . K 8 HOH A 150 655 655 HOH HOH . K 8 HOH A 151 658 658 HOH HOH . K 8 HOH A 152 660 660 HOH HOH . K 8 HOH A 153 670 670 HOH HOH . K 8 HOH A 154 671 671 HOH HOH . K 8 HOH A 155 681 681 HOH HOH . K 8 HOH A 156 682 682 HOH HOH . K 8 HOH A 157 683 683 HOH HOH . K 8 HOH A 158 685 685 HOH HOH . K 8 HOH A 159 689 689 HOH HOH . K 8 HOH A 160 690 690 HOH HOH . K 8 HOH A 161 691 691 HOH HOH . K 8 HOH A 162 693 693 HOH HOH . K 8 HOH A 163 701 701 HOH HOH . K 8 HOH A 164 702 702 HOH HOH . K 8 HOH A 165 703 703 HOH HOH . K 8 HOH A 166 704 704 HOH HOH . K 8 HOH A 167 705 705 HOH HOH . K 8 HOH A 168 706 706 HOH HOH . K 8 HOH A 169 707 707 HOH HOH . K 8 HOH A 170 708 708 HOH HOH . K 8 HOH A 171 709 709 HOH HOH . K 8 HOH A 172 710 710 HOH HOH . K 8 HOH A 173 711 711 HOH HOH . K 8 HOH A 174 713 713 HOH HOH . K 8 HOH A 175 721 721 HOH HOH . K 8 HOH A 176 723 723 HOH HOH . K 8 HOH A 177 726 726 HOH HOH . K 8 HOH A 178 727 727 HOH HOH . K 8 HOH A 179 730 730 HOH HOH . K 8 HOH A 180 801 801 HOH HOH . K 8 HOH A 181 802 802 HOH HOH . K 8 HOH A 182 805 805 HOH HOH . K 8 HOH A 183 806 806 HOH HOH . K 8 HOH A 184 808 808 HOH HOH . K 8 HOH A 185 810 810 HOH HOH . K 8 HOH A 186 814 814 HOH HOH . K 8 HOH A 187 816 816 HOH HOH . K 8 HOH A 188 901 901 HOH HOH . K 8 HOH A 189 902 902 HOH HOH . K 8 HOH A 190 903 903 HOH HOH . K 8 HOH A 191 904 904 HOH HOH . K 8 HOH A 192 905 905 HOH HOH . K 8 HOH A 193 906 906 HOH HOH . K 8 HOH A 194 907 907 HOH HOH . K 8 HOH A 195 908 908 HOH HOH . K 8 HOH A 196 909 909 HOH HOH . K 8 HOH A 197 910 910 HOH HOH . K 8 HOH A 198 911 911 HOH HOH . K 8 HOH A 199 912 912 HOH HOH . # _atom_site.group_PDB HETATM _atom_site.id 1 _atom_site.type_symbol ZN _atom_site.label_atom_id ZN _atom_site.label_comp_id ZN _atom_site.label_seq_id . _atom_site.label_alt_id . _atom_site.pdbx_PDB_ins_code . _atom_site.label_asym_id B _atom_site.label_entity_id 2 _atom_site.Cartn_x 36.764 _atom_site.Cartn_y 44.426 _atom_site.Cartn_z -7.172 _atom_site.occupancy 1 _atom_site.B_iso_or_equiv 12.89 _atom_site.pdbx_formal_charge ? _atom_site.auth_atom_id ZN _atom_site.auth_comp_id ZN _atom_site.auth_seq_id 317 _atom_site.auth_asym_id A _atom_site.pdbx_PDB_model_num 1 # _model_server_stats.io_time_ms 9 _model_server_stats.parse_time_ms 8 _model_server_stats.create_model_time_ms 3 _model_server_stats.query_time_ms 270 _model_server_stats.encode_time_ms 4 _model_server_stats.element_count 1 #