data_2FXF # _model_server_result.job_id WqVItSLD70Ne1mALMzOqBg _model_server_result.datetime_utc '2024-11-26 05:34:33' _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 2fxf # _model_server_params.name atom_site _model_server_params.value '{"label_asym_id":"F","auth_seq_id":801}' # _entry.id 2FXF # _exptl.entry_id 2FXF _exptl.method 'X-RAY DIFFRACTION' # _entity.details ? _entity.formula_weight 59.044 _entity.id 3 _entity.src_method syn _entity.type non-polymer _entity.pdbx_description 'ACETATE 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 94.41 _cell.angle_gamma 90 _cell.entry_id 2FXF _cell.length_a 65.631 _cell.length_b 66.738 _cell.length_c 95.66 _cell.Z_PDB 8 _cell.pdbx_unique_axis ? # _symmetry.entry_id 2FXF _symmetry.cell_setting ? _symmetry.Int_Tables_number 5 _symmetry.space_group_name_Hall ? _symmetry.space_group_name_H-M 'C 1 2 1' # loop_ _pdbx_struct_assembly.method_details _pdbx_struct_assembly.oligomeric_details _pdbx_struct_assembly.oligomeric_count _pdbx_struct_assembly.details _pdbx_struct_assembly.id PISA dimeric 2 author_and_software_defined_assembly 1 PISA tetrameric 4 software_defined_assembly 2 # loop_ _pdbx_struct_assembly_gen.asym_id_list _pdbx_struct_assembly_gen.assembly_id _pdbx_struct_assembly_gen.oper_expression A,B,C,D,E,F,G,H,I,J,K,L 1 1 A,B,C,D,E,F,G,H,I,J,K,L 2 1,2 # loop_ _pdbx_struct_oper_list.id _pdbx_struct_oper_list.type _pdbx_struct_oper_list.name _pdbx_struct_oper_list.symmetry_operation _pdbx_struct_oper_list.matrix[1][1] _pdbx_struct_oper_list.matrix[1][2] _pdbx_struct_oper_list.matrix[1][3] _pdbx_struct_oper_list.matrix[2][1] _pdbx_struct_oper_list.matrix[2][2] _pdbx_struct_oper_list.matrix[2][3] _pdbx_struct_oper_list.matrix[3][1] _pdbx_struct_oper_list.matrix[3][2] _pdbx_struct_oper_list.matrix[3][3] _pdbx_struct_oper_list.vector[1] _pdbx_struct_oper_list.vector[2] _pdbx_struct_oper_list.vector[3] 1 'identity operation' 1_555 x,y,z 1 0 0 0 1 0 0 0 1 0 0 0 2 'crystal symmetry operation' 2_556 -x,y,-z+1 -1 0 0 0 1 0 0 0 -1 -7.355589 0 95.376784 # _struct_asym.details ? _struct_asym.entity_id 3 _struct_asym.id F _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 O ALA 11 A ALA 12 1_555 E CA CA . A CA 305 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.38 ? metalc ? metalc2 A OG SER 14 A SER 15 1_555 E CA CA . A CA 305 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.801 ? metalc ? metalc3 A O GLU 91 A GLU 92 1_555 C CA CA . A CA 301 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.54 ? metalc ? metalc4 A OE2 GLU 91 A GLU 92 1_555 C CA CA . A CA 301 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.506 ? metalc ? metalc5 A OD1 ASP 92 A ASP 93 1_555 C CA CA . A CA 301 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.292 ? metalc ? metalc6 A SG CYS 119 A CYS 120 1_555 D CA CA . A CA 303 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.197 ? metalc ? metalc7 C CA CA . A CA 301 1_555 K O HOH . A HOH 1001 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.413 ? metalc ? metalc8 C CA CA . A CA 301 1_555 K O HOH . A HOH 1002 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.549 ? metalc ? metalc9 C CA CA . A CA 301 1_555 K O HOH . A HOH 1003 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.495 ? metalc ? metalc10 C CA CA . A CA 301 1_555 K O HOH . A HOH 1004 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.335 ? metalc ? metalc11 E CA CA . A CA 305 1_555 K O HOH . A HOH 1082 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 3.024 ? metalc ? metalc12 E CA CA . A CA 305 1_555 K O HOH . A HOH 1111 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.346 ? metalc ? metalc13 K O HOH . A HOH 1108 1_555 I CA CA . B CA 304 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 3.281 ? metalc ? metalc14 B O GLU 91 B GLU 92 1_555 H CA CA . B CA 302 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.343 ? metalc ? metalc15 B OE2 GLU 91 B GLU 92 1_555 H CA CA . B CA 302 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.506 ? metalc ? metalc16 B OD1 ASP 92 B ASP 93 1_555 H CA CA . B CA 302 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.343 ? metalc ? metalc17 B SG CYS 119 B CYS 120 1_555 I CA CA . B CA 304 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.068 ? metalc ? metalc18 H CA CA . B CA 302 1_555 L O HOH . B HOH 2007 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.495 ? metalc ? metalc19 H CA CA . B CA 302 1_555 L O HOH . B HOH 2022 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.393 ? metalc ? metalc20 H CA CA . B CA 302 1_555 L O HOH . B HOH 2078 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.855 ? metalc ? metalc21 H CA CA . B CA 302 1_555 L O HOH . B HOH 2081 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.288 ? # _chem_comp.formula 'C2 H3 O2 -1' _chem_comp.formula_weight 59.044 _chem_comp.id ACT _chem_comp.mon_nstd_flag . _chem_comp.name 'ACETATE ION' _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 C O ACT doub 92 n n C OXT ACT sing 93 n n C CH3 ACT sing 94 n n CH3 H1 ACT sing 95 n n CH3 H2 ACT sing 96 n n CH3 H3 ACT sing 97 n n # _atom_sites.entry_id 2FXF _atom_sites.fract_transf_matrix[1][1] 0.015237 _atom_sites.fract_transf_matrix[1][2] 0 _atom_sites.fract_transf_matrix[1][3] 0.001175 _atom_sites.fract_transf_matrix[2][1] 0 _atom_sites.fract_transf_matrix[2][2] 0.014984 _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] 0.010485 _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 C 2 CA A 1 301 1 CA CA . D 2 CA A 1 303 3 CA CA . E 2 CA A 1 305 5 CA CA . F 3 ACT A 1 801 801 ACT ACT . G 4 ACO A 1 1000 1000 ACO XYZ . H 2 CA B 1 302 2 CA CA . I 2 CA B 1 304 4 CA CA . J 4 ACO B 1 2000 2000 ACO XYZ . K 5 HOH A 1 1001 1 HOH HOH . K 5 HOH A 2 1002 2 HOH HOH . K 5 HOH A 3 1003 3 HOH HOH . K 5 HOH A 4 1004 4 HOH HOH . K 5 HOH A 5 1005 5 HOH HOH . K 5 HOH A 6 1006 6 HOH HOH . K 5 HOH A 7 1007 7 HOH HOH . K 5 HOH A 8 1008 8 HOH HOH . K 5 HOH A 9 1009 9 HOH HOH . K 5 HOH A 10 1010 10 HOH HOH . K 5 HOH A 11 1011 11 HOH HOH . K 5 HOH A 12 1012 12 HOH HOH . K 5 HOH A 13 1013 13 HOH HOH . K 5 HOH A 14 1014 15 HOH HOH . K 5 HOH A 15 1015 18 HOH HOH . K 5 HOH A 16 1016 19 HOH HOH . K 5 HOH A 17 1017 21 HOH HOH . K 5 HOH A 18 1018 22 HOH HOH . K 5 HOH A 19 1019 23 HOH HOH . K 5 HOH A 20 1020 25 HOH HOH . K 5 HOH A 21 1021 27 HOH HOH . K 5 HOH A 22 1022 28 HOH HOH . K 5 HOH A 23 1023 29 HOH HOH . K 5 HOH A 24 1024 31 HOH HOH . K 5 HOH A 25 1025 32 HOH HOH . K 5 HOH A 26 1026 33 HOH HOH . K 5 HOH A 27 1027 34 HOH HOH . K 5 HOH A 28 1028 36 HOH HOH . K 5 HOH A 29 1029 38 HOH HOH . K 5 HOH A 30 1030 40 HOH HOH . K 5 HOH A 31 1031 43 HOH HOH . K 5 HOH A 32 1032 44 HOH HOH . K 5 HOH A 33 1033 45 HOH HOH . K 5 HOH A 34 1034 46 HOH HOH . K 5 HOH A 35 1035 47 HOH HOH . K 5 HOH A 36 1036 49 HOH HOH . K 5 HOH A 37 1037 52 HOH HOH . K 5 HOH A 38 1038 53 HOH HOH . K 5 HOH A 39 1039 54 HOH HOH . K 5 HOH A 40 1040 55 HOH HOH . K 5 HOH A 41 1041 58 HOH HOH . K 5 HOH A 42 1042 59 HOH HOH . K 5 HOH A 43 1043 64 HOH HOH . K 5 HOH A 44 1044 65 HOH HOH . K 5 HOH A 45 1045 66 HOH HOH . K 5 HOH A 46 1046 67 HOH HOH . K 5 HOH A 47 1047 71 HOH HOH . K 5 HOH A 48 1048 73 HOH HOH . K 5 HOH A 49 1049 74 HOH HOH . K 5 HOH A 50 1050 75 HOH HOH . K 5 HOH A 51 1051 77 HOH HOH . K 5 HOH A 52 1052 78 HOH HOH . K 5 HOH A 53 1053 79 HOH HOH . K 5 HOH A 54 1054 80 HOH HOH . K 5 HOH A 55 1055 82 HOH HOH . K 5 HOH A 56 1056 84 HOH HOH . K 5 HOH A 57 1057 85 HOH HOH . K 5 HOH A 58 1058 86 HOH HOH . K 5 HOH A 59 1059 90 HOH HOH . K 5 HOH A 60 1060 91 HOH HOH . K 5 HOH A 61 1061 92 HOH HOH . K 5 HOH A 62 1062 94 HOH HOH . K 5 HOH A 63 1063 95 HOH HOH . K 5 HOH A 64 1064 97 HOH HOH . K 5 HOH A 65 1065 98 HOH HOH . K 5 HOH A 66 1066 100 HOH HOH . K 5 HOH A 67 1067 101 HOH HOH . K 5 HOH A 68 1068 102 HOH HOH . K 5 HOH A 69 1069 104 HOH HOH . K 5 HOH A 70 1070 107 HOH HOH . K 5 HOH A 71 1071 108 HOH HOH . K 5 HOH A 72 1072 111 HOH HOH . K 5 HOH A 73 1073 112 HOH HOH . K 5 HOH A 74 1074 113 HOH HOH . K 5 HOH A 75 1075 122 HOH HOH . K 5 HOH A 76 1076 124 HOH HOH . K 5 HOH A 77 1077 132 HOH HOH . K 5 HOH A 78 1078 133 HOH HOH . K 5 HOH A 79 1079 134 HOH HOH . K 5 HOH A 80 1080 135 HOH HOH . K 5 HOH A 81 1081 137 HOH HOH . K 5 HOH A 82 1082 138 HOH HOH . K 5 HOH A 83 1083 142 HOH HOH . K 5 HOH A 84 1084 143 HOH HOH . K 5 HOH A 85 1085 145 HOH HOH . K 5 HOH A 86 1086 146 HOH HOH . K 5 HOH A 87 1087 147 HOH HOH . K 5 HOH A 88 1088 150 HOH HOH . K 5 HOH A 89 1089 151 HOH HOH . K 5 HOH A 90 1090 155 HOH HOH . K 5 HOH A 91 1091 158 HOH HOH . K 5 HOH A 92 1092 161 HOH HOH . K 5 HOH A 93 1093 162 HOH HOH . K 5 HOH A 94 1094 163 HOH HOH . K 5 HOH A 95 1095 164 HOH HOH . K 5 HOH A 96 1096 169 HOH HOH . K 5 HOH A 97 1097 171 HOH HOH . K 5 HOH A 98 1098 175 HOH HOH . K 5 HOH A 99 1099 177 HOH HOH . K 5 HOH A 100 1100 178 HOH HOH . K 5 HOH A 101 1101 179 HOH HOH . K 5 HOH A 102 1102 180 HOH HOH . K 5 HOH A 103 1103 183 HOH HOH . K 5 HOH A 104 1104 184 HOH HOH . K 5 HOH A 105 1105 185 HOH HOH . K 5 HOH A 106 1106 187 HOH HOH . K 5 HOH A 107 1107 189 HOH HOH . K 5 HOH A 108 1108 191 HOH HOH . K 5 HOH A 109 1109 192 HOH HOH . K 5 HOH A 110 1110 193 HOH HOH . K 5 HOH A 111 1111 194 HOH HOH . K 5 HOH A 112 1112 195 HOH HOH . K 5 HOH A 113 1113 197 HOH HOH . K 5 HOH A 114 1114 199 HOH HOH . K 5 HOH A 115 1115 201 HOH HOH . K 5 HOH A 116 1116 202 HOH HOH . K 5 HOH A 117 1117 205 HOH HOH . K 5 HOH A 118 1118 206 HOH HOH . K 5 HOH A 119 1119 208 HOH HOH . K 5 HOH A 120 1120 210 HOH HOH . K 5 HOH A 121 1121 213 HOH HOH . K 5 HOH A 122 1122 214 HOH HOH . K 5 HOH A 123 1123 216 HOH HOH . K 5 HOH A 124 1124 218 HOH HOH . K 5 HOH A 125 1125 221 HOH HOH . K 5 HOH A 126 1126 222 HOH HOH . K 5 HOH A 127 1127 223 HOH HOH . K 5 HOH A 128 1128 229 HOH HOH . K 5 HOH A 129 1129 235 HOH HOH . K 5 HOH A 130 1130 236 HOH HOH . L 5 HOH B 1 2001 14 HOH HOH . L 5 HOH B 2 2002 16 HOH HOH . L 5 HOH B 3 2003 17 HOH HOH . L 5 HOH B 4 2004 20 HOH HOH . L 5 HOH B 5 2005 24 HOH HOH . L 5 HOH B 6 2006 26 HOH HOH . L 5 HOH B 7 2007 30 HOH HOH . L 5 HOH B 8 2008 35 HOH HOH . L 5 HOH B 9 2009 37 HOH HOH . L 5 HOH B 10 2010 39 HOH HOH . L 5 HOH B 11 2011 41 HOH HOH . L 5 HOH B 12 2012 42 HOH HOH . L 5 HOH B 13 2013 48 HOH HOH . L 5 HOH B 14 2014 50 HOH HOH . L 5 HOH B 15 2015 51 HOH HOH . L 5 HOH B 16 2016 56 HOH HOH . L 5 HOH B 17 2017 57 HOH HOH . L 5 HOH B 18 2018 60 HOH HOH . L 5 HOH B 19 2019 61 HOH HOH . L 5 HOH B 20 2020 62 HOH HOH . L 5 HOH B 21 2021 63 HOH HOH . L 5 HOH B 22 2022 68 HOH HOH . L 5 HOH B 23 2023 69 HOH HOH . L 5 HOH B 24 2024 70 HOH HOH . L 5 HOH B 25 2025 72 HOH HOH . L 5 HOH B 26 2026 76 HOH HOH . L 5 HOH B 27 2027 81 HOH HOH . L 5 HOH B 28 2028 83 HOH HOH . L 5 HOH B 29 2029 87 HOH HOH . L 5 HOH B 30 2030 88 HOH HOH . L 5 HOH B 31 2031 89 HOH HOH . L 5 HOH B 32 2032 93 HOH HOH . L 5 HOH B 33 2033 96 HOH HOH . L 5 HOH B 34 2034 99 HOH HOH . L 5 HOH B 35 2035 103 HOH HOH . L 5 HOH B 36 2036 105 HOH HOH . L 5 HOH B 37 2037 106 HOH HOH . L 5 HOH B 38 2038 109 HOH HOH . L 5 HOH B 39 2039 110 HOH HOH . L 5 HOH B 40 2040 114 HOH HOH . L 5 HOH B 41 2041 115 HOH HOH . L 5 HOH B 42 2042 116 HOH HOH . L 5 HOH B 43 2043 117 HOH HOH . L 5 HOH B 44 2044 118 HOH HOH . L 5 HOH B 45 2045 119 HOH HOH . L 5 HOH B 46 2046 120 HOH HOH . L 5 HOH B 47 2047 121 HOH HOH . L 5 HOH B 48 2048 123 HOH HOH . L 5 HOH B 49 2049 125 HOH HOH . L 5 HOH B 50 2050 126 HOH HOH . L 5 HOH B 51 2051 127 HOH HOH . L 5 HOH B 52 2052 128 HOH HOH . L 5 HOH B 53 2053 129 HOH HOH . L 5 HOH B 54 2054 130 HOH HOH . L 5 HOH B 55 2055 131 HOH HOH . L 5 HOH B 56 2056 136 HOH HOH . L 5 HOH B 57 2057 139 HOH HOH . L 5 HOH B 58 2058 140 HOH HOH . L 5 HOH B 59 2059 141 HOH HOH . L 5 HOH B 60 2060 144 HOH HOH . L 5 HOH B 61 2061 149 HOH HOH . L 5 HOH B 62 2062 152 HOH HOH . L 5 HOH B 63 2063 153 HOH HOH . L 5 HOH B 64 2064 154 HOH HOH . L 5 HOH B 65 2065 156 HOH HOH . L 5 HOH B 66 2066 157 HOH HOH . L 5 HOH B 67 2067 159 HOH HOH . L 5 HOH B 68 2068 160 HOH HOH . L 5 HOH B 69 2069 165 HOH HOH . L 5 HOH B 70 2070 167 HOH HOH . L 5 HOH B 71 2071 168 HOH HOH . L 5 HOH B 72 2072 170 HOH HOH . L 5 HOH B 73 2073 172 HOH HOH . L 5 HOH B 74 2074 173 HOH HOH . L 5 HOH B 75 2075 174 HOH HOH . L 5 HOH B 76 2076 176 HOH HOH . L 5 HOH B 77 2077 181 HOH HOH . L 5 HOH B 78 2078 186 HOH HOH . L 5 HOH B 79 2079 188 HOH HOH . L 5 HOH B 80 2080 196 HOH HOH . L 5 HOH B 81 2081 198 HOH HOH . L 5 HOH B 82 2082 200 HOH HOH . L 5 HOH B 83 2083 203 HOH HOH . L 5 HOH B 84 2084 204 HOH HOH . L 5 HOH B 85 2085 207 HOH HOH . L 5 HOH B 86 2086 209 HOH HOH . L 5 HOH B 87 2087 211 HOH HOH . L 5 HOH B 88 2088 231 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 C ACT . . . F 3 7.468 -5.75 30.154 1 25.3 ? C ACT 801 A 1 HETATM 2 O O ACT . . . F 3 6.391 -5.245 29.696 1 25.93 ? O ACT 801 A 1 HETATM 3 O OXT ACT . . . F 3 8.484 -5.814 29.393 1 28.31 ? OXT ACT 801 A 1 HETATM 4 C CH3 ACT . . . F 3 7.534 -6.177 31.544 1 22.3 ? CH3 ACT 801 A 1 # _model_server_stats.io_time_ms 9 _model_server_stats.parse_time_ms 10 _model_server_stats.create_model_time_ms 8 _model_server_stats.query_time_ms 336 _model_server_stats.encode_time_ms 3 _model_server_stats.element_count 4 #