data_3M3D
#
_model_server_result.job_id            alEQ2mMefc5oT65l2q8MmA 
_model_server_result.datetime_utc      '2024-11-12 21:49:11' 
_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          3m3d 
#
_model_server_params.name     atom_site 
_model_server_params.value    '{"label_asym_id":"F","auth_seq_id":805}' 
#
_entry.id    3M3D 
#
_exptl.entry_id    3M3D 
_exptl.method      'X-RAY DIFFRACTION' 
#
_entity.details                     ? 
_entity.formula_weight              194.226 
_entity.id                          4 
_entity.src_method                  syn 
_entity.type                        non-polymer 
_entity.pdbx_description            'TETRAETHYLENE GLYCOL' 
_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            3M3D 
_cell.length_a            111.769 
_cell.length_b            111.769 
_cell.length_c            137.232 
_cell.Z_PDB               6 
_cell.pdbx_unique_axis    ? 
#
_symmetry.entry_id                 3M3D 
_symmetry.cell_setting             ? 
_symmetry.Int_Tables_number        152 
_symmetry.space_group_name_Hall    ? 
_symmetry.space_group_name_H-M     'P 31 2 1' 
#
_pdbx_struct_assembly.method_details        PISA 
_pdbx_struct_assembly.oligomeric_details    dimeric 
_pdbx_struct_assembly.oligomeric_count      2 
_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,L,M 
_pdbx_struct_assembly_gen.assembly_id        1 
_pdbx_struct_assembly_gen.oper_expression    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' 6_765 -x+2,-x+y+1,-z+1/3 -0.5 -0.866025 0 -0.866025 0.5 0 0 0 -1 167.6535 96.794793 45.744 
#
_struct_asym.details                        ? 
_struct_asym.entity_id                      4 
_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
disulf ? disulf1 A SG CYS 67 A CYS 67 1_555 A SG CYS 94 A CYS 94 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.071 ? 
disulf ? disulf2 A SG CYS 254 A CYS 254 1_555 A SG CYS 265 A CYS 265 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.026 ? 
disulf ? disulf3 A SG CYS 402 A CYS 402 1_555 A SG CYS 521 A CYS 521 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 2.031 ? 
covale ? covale1 A ND2 ASN 416 A ASN 416 1_555 D C1 NAG . A NAG 701 1_555 ? ? ? ? ? ? ? ? ? ? ? ? 1.343 ? 
#
_chem_comp.formula           'C8 H18 O5' 
_chem_comp.formula_weight    194.226 
_chem_comp.id                PG4 
_chem_comp.mon_nstd_flag     . 
_chem_comp.name              'TETRAETHYLENE GLYCOL' 
_chem_comp.type              non-polymer 
_chem_comp.pdbx_synonyms     ? 
#
_atom_sites.entry_id                     3M3D 
_atom_sites.fract_transf_matrix[1][1]    0.008947 
_atom_sites.fract_transf_matrix[1][2]    0.005166 
_atom_sites.fract_transf_matrix[1][3]    0 
_atom_sites.fract_transf_matrix[2][1]    0 
_atom_sites.fract_transf_matrix[2][2]    0.010331 
_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]    0.007287 
_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 XE A 1 601 601 XE XE . 
C 2 XE A 1 602 602 XE XE . 
D 3 NAG A 1 701 701 NAG NAG . 
E 3 NAG A 1 702 702 NAG NAG . 
F 4 PG4 A 1 805 805 PG4 PG4 . 
G 5 PEG A 1 901 901 PEG PEG . 
H 5 PEG A 1 903 903 PEG PEG . 
I 5 PEG A 1 904 904 PEG PEG . 
J 5 PEG A 1 905 905 PEG PEG . 
K 5 PEG A 1 906 906 PEG PEG . 
L 5 PEG A 1 907 907 PEG PEG . 
M 6 HOH A 1 1001 1001 HOH HOH . 
M 6 HOH A 2 1002 1002 HOH HOH . 
M 6 HOH A 3 1003 1003 HOH HOH . 
M 6 HOH A 4 1004 1004 HOH HOH . 
M 6 HOH A 5 1005 1005 HOH HOH . 
M 6 HOH A 6 1006 1006 HOH HOH . 
M 6 HOH A 7 1007 1007 HOH HOH . 
M 6 HOH A 8 1008 1008 HOH HOH . 
M 6 HOH A 9 1009 1009 HOH HOH . 
M 6 HOH A 10 1010 1010 HOH HOH . 
M 6 HOH A 11 1011 1011 HOH HOH . 
M 6 HOH A 12 1012 1012 HOH HOH . 
M 6 HOH A 13 1013 1013 HOH HOH . 
M 6 HOH A 14 1014 1014 HOH HOH . 
M 6 HOH A 15 1015 1015 HOH HOH . 
M 6 HOH A 16 1016 1016 HOH HOH . 
M 6 HOH A 17 1017 1017 HOH HOH . 
M 6 HOH A 18 1018 1018 HOH HOH . 
M 6 HOH A 19 1019 1019 HOH HOH . 
M 6 HOH A 20 1021 1021 HOH HOH . 
M 6 HOH A 21 1022 1022 HOH HOH . 
M 6 HOH A 22 1023 1023 HOH HOH . 
M 6 HOH A 23 1024 1024 HOH HOH . 
M 6 HOH A 24 1025 1025 HOH HOH . 
M 6 HOH A 25 1026 1026 HOH HOH . 
M 6 HOH A 26 1027 1027 HOH HOH . 
M 6 HOH A 27 1028 1028 HOH HOH . 
M 6 HOH A 28 1029 1029 HOH HOH . 
M 6 HOH A 29 1030 1030 HOH HOH . 
M 6 HOH A 30 1031 1031 HOH HOH . 
M 6 HOH A 31 1032 1032 HOH HOH . 
M 6 HOH A 32 1033 1033 HOH HOH . 
M 6 HOH A 33 1034 1034 HOH HOH . 
M 6 HOH A 34 1035 1035 HOH HOH . 
M 6 HOH A 35 1036 1036 HOH HOH . 
M 6 HOH A 36 1037 1037 HOH HOH . 
M 6 HOH A 37 1039 1039 HOH HOH . 
M 6 HOH A 38 1040 1040 HOH HOH . 
M 6 HOH A 39 1041 1041 HOH HOH . 
M 6 HOH A 40 1042 1042 HOH HOH . 
M 6 HOH A 41 1043 1043 HOH HOH . 
M 6 HOH A 42 1044 1044 HOH HOH . 
M 6 HOH A 43 1045 1045 HOH HOH . 
M 6 HOH A 44 1046 1046 HOH HOH . 
M 6 HOH A 45 1047 1047 HOH HOH . 
M 6 HOH A 46 1048 1048 HOH HOH . 
M 6 HOH A 47 1049 1049 HOH HOH . 
M 6 HOH A 48 1050 1050 HOH HOH . 
M 6 HOH A 49 1051 1051 HOH HOH . 
M 6 HOH A 50 1052 1052 HOH HOH . 
M 6 HOH A 51 1053 1053 HOH HOH . 
M 6 HOH A 52 1054 1054 HOH HOH . 
M 6 HOH A 53 1055 1055 HOH HOH . 
M 6 HOH A 54 1058 1058 HOH HOH . 
M 6 HOH A 55 1059 1059 HOH HOH . 
M 6 HOH A 56 1060 1060 HOH HOH . 
M 6 HOH A 57 1061 1061 HOH HOH . 
M 6 HOH A 58 1062 1062 HOH HOH . 
M 6 HOH A 59 1063 1063 HOH HOH . 
M 6 HOH A 60 1064 1064 HOH HOH . 
M 6 HOH A 61 1065 1065 HOH HOH . 
M 6 HOH A 62 1066 1066 HOH HOH . 
M 6 HOH A 63 1067 1067 HOH HOH . 
M 6 HOH A 64 1069 1069 HOH HOH . 
M 6 HOH A 65 1070 1070 HOH HOH . 
M 6 HOH A 66 1071 1071 HOH HOH . 
M 6 HOH A 67 1072 1072 HOH HOH . 
M 6 HOH A 68 1073 1073 HOH HOH . 
M 6 HOH A 69 1074 1074 HOH HOH . 
M 6 HOH A 70 1075 1075 HOH HOH . 
M 6 HOH A 71 1076 1076 HOH HOH . 
M 6 HOH A 72 1077 1077 HOH HOH . 
M 6 HOH A 73 1078 1078 HOH HOH . 
M 6 HOH A 74 1079 1079 HOH HOH . 
M 6 HOH A 75 1080 1080 HOH HOH . 
M 6 HOH A 76 1081 1081 HOH HOH . 
M 6 HOH A 77 1083 1083 HOH HOH . 
M 6 HOH A 78 1084 1084 HOH HOH . 
M 6 HOH A 79 1085 1085 HOH HOH . 
M 6 HOH A 80 1086 1086 HOH HOH . 
M 6 HOH A 81 1087 1087 HOH HOH . 
M 6 HOH A 82 1088 1088 HOH HOH . 
M 6 HOH A 83 1089 1089 HOH HOH . 
M 6 HOH A 84 1090 1090 HOH HOH . 
M 6 HOH A 85 1091 1091 HOH HOH . 
M 6 HOH A 86 1092 1092 HOH HOH . 
M 6 HOH A 87 1093 1093 HOH HOH . 
M 6 HOH A 88 1094 1094 HOH HOH . 
M 6 HOH A 89 1095 1095 HOH HOH . 
M 6 HOH A 90 1096 1096 HOH HOH . 
M 6 HOH A 91 1097 1097 HOH HOH . 
M 6 HOH A 92 1098 1098 HOH HOH . 
M 6 HOH A 93 1099 1099 HOH HOH . 
M 6 HOH A 94 1100 1100 HOH HOH . 
M 6 HOH A 95 1101 1101 HOH HOH . 
M 6 HOH A 96 1102 1102 HOH HOH . 
M 6 HOH A 97 1103 1103 HOH HOH . 
M 6 HOH A 98 1104 1104 HOH HOH . 
M 6 HOH A 99 1105 1105 HOH HOH . 
M 6 HOH A 100 1108 1108 HOH HOH . 
M 6 HOH A 101 1109 1109 HOH HOH . 
M 6 HOH A 102 1110 1110 HOH HOH . 
M 6 HOH A 103 1111 1111 HOH HOH . 
M 6 HOH A 104 1113 1113 HOH HOH . 
M 6 HOH A 105 1114 1114 HOH HOH . 
M 6 HOH A 106 1115 1115 HOH HOH . 
M 6 HOH A 107 1116 1116 HOH HOH . 
M 6 HOH A 108 1117 1117 HOH HOH . 
M 6 HOH A 109 1118 1118 HOH HOH . 
M 6 HOH A 110 1119 1119 HOH HOH . 
M 6 HOH A 111 1120 1120 HOH HOH . 
M 6 HOH A 112 1121 1121 HOH HOH . 
M 6 HOH A 113 1122 1122 HOH HOH . 
M 6 HOH A 114 1123 1123 HOH HOH . 
M 6 HOH A 115 1124 1124 HOH HOH . 
M 6 HOH A 116 1125 1125 HOH HOH . 
M 6 HOH A 117 1126 1126 HOH HOH . 
M 6 HOH A 118 1127 1127 HOH HOH . 
M 6 HOH A 119 1128 1128 HOH HOH . 
M 6 HOH A 120 1129 1129 HOH HOH . 
M 6 HOH A 121 1130 1130 HOH HOH . 
M 6 HOH A 122 1131 1131 HOH HOH . 
M 6 HOH A 123 1132 1132 HOH HOH . 
M 6 HOH A 124 1133 1133 HOH HOH . 
M 6 HOH A 125 1134 1134 HOH HOH . 
M 6 HOH A 126 1135 1135 HOH HOH . 
M 6 HOH A 127 1136 1136 HOH HOH . 
M 6 HOH A 128 1137 1137 HOH HOH . 
M 6 HOH A 129 1138 1138 HOH HOH . 
M 6 HOH A 130 1139 1139 HOH HOH . 
M 6 HOH A 131 1142 1142 HOH HOH . 
M 6 HOH A 132 1143 1143 HOH HOH . 
M 6 HOH A 133 1144 1144 HOH HOH . 
M 6 HOH A 134 1145 1145 HOH HOH . 
M 6 HOH A 135 1146 1146 HOH HOH . 
M 6 HOH A 136 1147 1147 HOH HOH . 
M 6 HOH A 137 1148 1148 HOH HOH . 
M 6 HOH A 138 1149 1149 HOH HOH . 
M 6 HOH A 139 1150 1150 HOH HOH . 
M 6 HOH A 140 1152 1152 HOH HOH . 
M 6 HOH A 141 1153 1153 HOH HOH . 
M 6 HOH A 142 1154 1154 HOH HOH . 
M 6 HOH A 143 1155 1155 HOH HOH . 
M 6 HOH A 144 1156 1156 HOH HOH . 
M 6 HOH A 145 1157 1157 HOH HOH . 
M 6 HOH A 146 1158 1158 HOH HOH . 
M 6 HOH A 147 1160 1160 HOH HOH . 
M 6 HOH A 148 1161 1161 HOH HOH . 
M 6 HOH A 149 1162 1162 HOH HOH . 
M 6 HOH A 150 1163 1163 HOH HOH . 
M 6 HOH A 151 1164 1164 HOH HOH . 
M 6 HOH A 152 1166 1166 HOH HOH . 
M 6 HOH A 153 1167 1167 HOH HOH . 
M 6 HOH A 154 1168 1168 HOH HOH . 
M 6 HOH A 155 1169 1169 HOH HOH . 
M 6 HOH A 156 1170 1170 HOH HOH . 
M 6 HOH A 157 1171 1171 HOH HOH . 
M 6 HOH A 158 1172 1172 HOH HOH . 
M 6 HOH A 159 1173 1173 HOH HOH . 
M 6 HOH A 160 1175 1175 HOH HOH . 
M 6 HOH A 161 1176 1176 HOH HOH . 
M 6 HOH A 162 1178 1178 HOH HOH . 
M 6 HOH A 163 1180 1180 HOH HOH . 
M 6 HOH A 164 1181 1181 HOH HOH . 
M 6 HOH A 165 1182 1182 HOH HOH . 
M 6 HOH A 166 1183 1183 HOH HOH . 
M 6 HOH A 167 1184 1184 HOH HOH . 
M 6 HOH A 168 1185 1185 HOH HOH . 
M 6 HOH A 169 1186 1186 HOH HOH . 
M 6 HOH A 170 1187 1187 HOH HOH . 
M 6 HOH A 171 1188 1188 HOH HOH . 
M 6 HOH A 172 1189 1189 HOH HOH . 
M 6 HOH A 173 1190 1190 HOH HOH . 
M 6 HOH A 174 1191 1191 HOH HOH . 
M 6 HOH A 175 1192 1192 HOH HOH . 
M 6 HOH A 176 1193 1193 HOH HOH . 
M 6 HOH A 177 1194 1194 HOH HOH . 
M 6 HOH A 178 1196 1196 HOH HOH . 
M 6 HOH A 179 1200 1200 HOH HOH . 
M 6 HOH A 180 1203 1203 HOH HOH . 
M 6 HOH A 181 1204 1204 HOH HOH . 
M 6 HOH A 182 1205 1205 HOH HOH . 
M 6 HOH A 183 1206 1206 HOH HOH . 
M 6 HOH A 184 1207 1207 HOH HOH . 
M 6 HOH A 185 1208 1208 HOH HOH . 
M 6 HOH A 186 1209 1209 HOH HOH . 
M 6 HOH A 187 1211 1211 HOH HOH . 
M 6 HOH A 188 1212 1212 HOH HOH . 
M 6 HOH A 189 1213 1213 HOH HOH . 
M 6 HOH A 190 1214 1214 HOH HOH . 
M 6 HOH A 191 1215 1215 HOH HOH . 
M 6 HOH A 192 1216 1216 HOH HOH . 
M 6 HOH A 193 1217 1217 HOH HOH . 
M 6 HOH A 194 1219 1219 HOH HOH . 
M 6 HOH A 195 1220 1220 HOH HOH . 
M 6 HOH A 196 1221 1221 HOH HOH . 
M 6 HOH A 197 1222 1222 HOH HOH . 
M 6 HOH A 198 1223 1223 HOH HOH . 
M 6 HOH A 199 1224 1224 HOH HOH . 
M 6 HOH A 200 1226 1226 HOH HOH . 
M 6 HOH A 201 1227 1227 HOH HOH . 
M 6 HOH A 202 1228 1228 HOH HOH . 
M 6 HOH A 203 1230 1230 HOH HOH . 
M 6 HOH A 204 1233 1233 HOH HOH . 
M 6 HOH A 205 1234 1234 HOH HOH . 
M 6 HOH A 206 1236 1236 HOH HOH . 
M 6 HOH A 207 1237 1237 HOH HOH . 
M 6 HOH A 208 1238 1238 HOH HOH . 
M 6 HOH A 209 1239 1239 HOH HOH . 
M 6 HOH A 210 1242 1242 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 O O1 PG4 . . . F 4 56.314 24.818 29.131 0.68 53.91 ? O1 PG4 805 A 1 
HETATM 2 C C1 PG4 . . . F 4 56.818 26.163 29.183 0.68 53.33 ? C1 PG4 805 A 1 
HETATM 3 C C2 PG4 . . . F 4 58.352 26.06 29.269 0.68 55.7 ? C2 PG4 805 A 1 
HETATM 4 O O2 PG4 . . . F 4 58.905 27.345 29.044 0.68 57.74 ? O2 PG4 805 A 1 
HETATM 5 C C3 PG4 . . . F 4 58.138 28.35 28.397 0.68 58.42 ? C3 PG4 805 A 1 
HETATM 6 C C4 PG4 . . . F 4 59.166 29.245 27.672 0.68 57.59 ? C4 PG4 805 A 1 
HETATM 7 O O3 PG4 . . . F 4 58.41 30.163 26.899 0.68 59.74 ? O3 PG4 805 A 1 
HETATM 8 C C5 PG4 . . . F 4 59.003 31.158 26.079 0.68 60.27 ? C5 PG4 805 A 1 
HETATM 9 C C6 PG4 . . . F 4 57.972 32.295 25.935 0.68 56.81 ? C6 PG4 805 A 1 
HETATM 10 O O4 PG4 . . . F 4 58.239 32.904 24.679 0.68 49.34 ? O4 PG4 805 A 1 
HETATM 11 C C7 PG4 . A . F 4 57.2 33.55 23.969 0.34 44.44 ? C7 PG4 805 A 1 
HETATM 12 C C7 PG4 . B . F 4 59.324 33.789 24.495 0.34 41.26 ? C7 PG4 805 A 1 
HETATM 13 C C8 PG4 . A . F 4 55.85 33.02 24.48 0.34 39.78 ? C8 PG4 805 A 1 
HETATM 14 C C8 PG4 . B . F 4 58.782 35.222 24.418 0.34 39.08 ? C8 PG4 805 A 1 
HETATM 15 O O5 PG4 . A . F 4 54.969 32.955 23.347 0.34 35.18 ? O5 PG4 805 A 1 
HETATM 16 O O5 PG4 . B . F 4 57.501 35.168 23.775 0.34 38.83 ? O5 PG4 805 A 1 
#
_model_server_stats.io_time_ms              7 
_model_server_stats.parse_time_ms           7 
_model_server_stats.create_model_time_ms    5 
_model_server_stats.query_time_ms           279 
_model_server_stats.encode_time_ms          4 
_model_server_stats.element_count           16 
#