2026-09-02 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update REFINEMENT_DESCRIPTION software _software.name DERIVED_CALCULATIONS struct_conf struct_sheet struct_sheet_range OTHER atom_sites cell _atom_sites.fract_transf_matrix[1][1] _atom_sites.fract_transf_matrix[2][2] _atom_sites.fract_transf_matrix[3][3] _cell.Z_PDB DERIVED_CALCULATIONS chem_comp_atom chem_comp_bond database_2 struct_conn _database_2.pdbx_DOI _database_2.pdbx_database_accession _struct_conn.pdbx_dist_value _struct_conn.ptnr1_auth_asym_id _struct_conn.ptnr1_auth_comp_id _struct_conn.ptnr1_auth_seq_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.ptnr2_auth_asym_id _struct_conn.ptnr2_label_asym_id REMEDIATION REPOSITORY Metalloprotein remediation STRUCTURE_SUMMARY chem_comp em_admin pdbx_entry_details pdbx_nonpoly_atom_coordination pdbx_nonpoly_atom_coordination_sphere pdbx_nonpoly_atom_coordination_sphere_order _chem_comp.formula _em_admin.last_update PDBe PDBe 2019-01-08 2019-03-06 2019-03-06 2026-09-02 E. coli DnaBC complex bound to ssDNA Arias-Palomo E Puri N Helicase, helicase loader, AAA+, RecA, REPLICATION Arias-Palomo E Puri N O'Shea Murray VL Yan Q Berger JM Physical Basis for the Loading of a Bacterial Replicative Helicase onto DNA. Mol.Cell US 74 173 184.e4 2019 30797687 doi:10.1016/j.molcel.2019.01.023 1097-2765 2168 MOCEFL EMD-4537 other EM volume
apo DnaBC complex
 6qem FULLOVERLAP EMDB EMD-4537 other EM volume
apo DnaBC complex
 EMDB EMD-4538 associated EM volume
E. coli DnaBC apo complex
 E. coli DnaBC complex bound to ssDNA E. coli DnaBC complex bound to ssDNA 0 1 2 3 0.49 DnaBC 1 1 2 Escherichia coli ssDNA 1 3 Escherichia coli Replicative DNA helicase Escherichia coli 0.052450945 6 Escherichia coli LEVO MAGNKPFNKQQAEPRERDPQVAGLKVPPHSIEAEQSVLGGLMLDNERWDDVAERVVADDFYTRPHRHIFTEMARLQESGS PIDLITLAESLERQGQLDSVGGFAYLAELSKNTPSAANISAYADIVRERAVVREMISVANEIAEAGFDPQGRTSEDLLDL AESRVFKIAESRANKDEGPKNIADVLDATVARIEQLFQQPHDGVTGVNTGYDDLNKKTAGLQPSDLIIVAARPSMGKTTF AMNLVENAAMLQDKPVLIFSLEMPSEQIMMRSLASLSRVDQTKIRTGQLDDEDWARISGTMGILLEKRNIYIDDSSGLTP TEVRSRARRIAREHGGIGLIMIDYLQLMRVPALSDNRTLEIAEISRSLKALAKELNVPVVALSQLNRSLEQRADKRPVNS DLRESGSIEQDADLIMFIYRDEVYHENSDLKGIAEIIIGKQRNGPIGTVRLTFNGQWSRFDNYAGPQYDDE P0ACB0 3.6.4.12 DNA replication protein DnaC Escherichia coli 0.027973151999999998 6 Escherichia coli LEVO MKNVGDLMQRLQKMMPAHIKPAFKTGEELLAWQKEQGAIRSAALERENRAMKMQRTFNRSGIRPLHQNCSFENYRVECEG QMNALSKARQYVEEFDGNIASFIFSGKPGTGKNHLAAAICNELLLRGKSVLIITVADIMSAMKDTFRNSGTSEEQLLNDL SNVDLLVIDEIGVQTESKYEKVIINQIVDRRSSSKRPTGMLTNSNMEEMTKLLGERVMDRMRLGNSLWVIFNWDSYRSRV TGKEY P0AEF0 3.6.4.12 ssDNA Escherichia coli 0.010905983 1 (DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT) (DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT)(DT) DNA [[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-oxidanyl-phosphoryl]oxy-tris(fluoranyl)beryllium 0.000492201 5 08T MAGNESIUM ION 2.4305e-05 5 MG ADENOSINE-5'-DIPHOSPHATE 0.000427201 6 ADP singleParticle particle 7.5 C-flat-1.2/1.3 COPPER 400 CARBON CONTINUOUS 2.0 GLOW DISCHARGE AIR
The grids were pre-treated with poly-lys
 ETHANE 90 FEI VITROBOT MARK IV FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.7 1.2 2.7 GATAN K2 SUMMIT (4k x 4k) COUNTING 58.0 1 473888 Gctf 1.06 RELION 2.1 PHASE FLIPPING AND AMPLITUDE CORRECTION
Three gaussian toroids with the dimensions of the molecule
 C1 3.4 FSC 0.143 CUT-OFF RELION 2.1 229097 MAXIMUM LIKELIHOOD RELION 2.1 MAXIMUM LIKELIHOOD RELION 2.1 emd_4538.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 288 288 288 0 0 0 288 288 288 301.536 301.536 301.536 90.0 90.0 90.0 X Y Z -0.22210658 0.38795137 0.000732486 0.008642876 1.047 1.047 1.047 0.05 AUTHOR E. coli DnaBC complex bound to ssDNA OTHER REAL emd_4538_additional_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 288 288 288 0 0 0 288 288 288 301.536 301.536 301.536 90.0 90.0 90.0 X Y Z -0.016370656 0.058906313 0.00011481542 0.002448524 1.047 1.047 1.047 AUTHOR E. coli DnaBC complex bound to ssDNA. Unsharpened map