Entry Database : PDB / ID : 5bq5 Structure visualization Downloads & linksTitle Crystal structure of the IstB AAA+ domain bound to ADP-BeF3 ComponentsInsertion sequence IS5376 putative ATP-binding protein Details Keywords ATP-binding protein / AAA+ / ATPase / transposition / DNA bindingFunction / homology Function and homology informationFunction Domain/homology Component
: / DNA replication protein DnaC/insertion sequence putative ATP-binding protein / IstB-like ATP-binding protein / IstB-like ATP binding protein / ClpA/B family / P-loop containing nucleotide triphosphate hydrolases / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / Rossmann fold / P-loop containing nucleoside triphosphate hydrolase ... : / DNA replication protein DnaC/insertion sequence putative ATP-binding protein / IstB-like ATP-binding protein / IstB-like ATP binding protein / ClpA/B family / P-loop containing nucleotide triphosphate hydrolases / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / Rossmann fold / P-loop containing nucleoside triphosphate hydrolase / 3-Layer(aba) Sandwich / Alpha Beta Similarity search - Domain/homologyBiological species Geobacillus stearothermophilus (bacteria)Method X-RAY DIFFRACTION / SYNCHROTRON / SAD / Resolution : 2.1 Å DetailsAuthors Arias-Palomo, E. / Berger, J.M. Funding support United States, 1items Details Hide detailsOrganization Grant number Country National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) GM071747 United States
CitationJournal : Cell / Year : 2015Title : An Atypical AAA+ ATPase Assembly Controls Efficient Transposition through DNA Remodeling and Transposase Recruitment.Authors : Ernesto Arias-Palomo / James M Berger / Abstract : Transposons are ubiquitous genetic elements that drive genome rearrangements, evolution, and the spread of infectious disease and drug-resistance. Many transposons, such as Mu, Tn7, and IS21, require ... Transposons are ubiquitous genetic elements that drive genome rearrangements, evolution, and the spread of infectious disease and drug-resistance. Many transposons, such as Mu, Tn7, and IS21, require regulatory AAA+ ATPases for function. We use X-ray crystallography and cryo-electron microscopy to show that the ATPase subunit of IS21, IstB, assembles into a clamshell-shaped decamer that sandwiches DNA between two helical pentamers of ATP-associated AAA+ domains, sharply bending the duplex into a 180° U-turn. Biochemical studies corroborate key features of the structure and further show that the IS21 transposase, IstA, recognizes the IstB•DNA complex and promotes its disassembly by stimulating ATP hydrolysis. Collectively, these studies reveal a distinct manner of higher-order assembly and client engagement by a AAA+ ATPase and suggest a mechanistic model where IstB binding and subsequent DNA bending primes a selected insertion site for efficient transposition. History Deposition May 28, 2015 Deposition site : RCSB / Processing site : RCSBRevision 1.0 Sep 2, 2015 Provider : repository / Type : Initial releaseRevision 1.1 Sep 13, 2017 Group : Author supporting evidence / Derived calculations / Category : pdbx_audit_support / pdbx_struct_oper_listItem : _pdbx_audit_support.funding_organization / _pdbx_struct_oper_list.symmetry_operationRevision 1.2 Dec 25, 2019 Group : Author supporting evidence / Category : pdbx_audit_support / Item : _pdbx_audit_support.funding_organizationRevision 1.3 Nov 6, 2024 Group : Data collection / Database references ... Data collection / Database references / Derived calculations / Refinement description / Structure summary Category : chem_comp_atom / chem_comp_bond ... chem_comp_atom / chem_comp_bond / database_2 / pdbx_entry_details / pdbx_modification_feature / pdbx_struct_conn_angle / struct_conn / struct_conn_type / struct_ncs_dom_lim Item : _database_2.pdbx_DOI / _database_2.pdbx_database_accession ... _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.value / _struct_conn.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_ptnr1_label_alt_id / _struct_conn.pdbx_ptnr2_label_alt_id / _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_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _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_type.id / _struct_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.beg_label_asym_id / _struct_ncs_dom_lim.beg_label_comp_id / _struct_ncs_dom_lim.beg_label_seq_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_id / _struct_ncs_dom_lim.end_label_comp_id / _struct_ncs_dom_lim.end_label_seq_id Revision 1.4 Aug 12, 2026 Group : Derived calculationsCategory : pdbx_nonpoly_atom_coordination / pdbx_nonpoly_atom_coordination_sphere / pdbx_nonpoly_atom_coordination_sphere_orderDescription : Metalloprotein remediation / Provider : repository / Type : Remediation
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