Annotations: 2Q2E

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PRK04342_1st_2	e2q2eA2	A: beta barrels	X: all-beta domain in DNA topoisomerase IV alpha subunit (From Topology)	H: all-beta domain in DNA topoisomerase IV alpha subunit (From Topology)	T: all-beta domain in DNA topoisomerase IV alpha subunit	F: PRK04342_1st_2	ECOD (1.6)
A	TP6A_N	e2q2eA3	A: alpha arrays	X: HTH	H: HTH domain in DNA topoisomerase IV alpha subunit (From Topology)	T: HTH domain in DNA topoisomerase IV alpha subunit	F: TP6A_N	ECOD (1.6)
A	PRK04342_2nd	e2q2eA1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: Toprim domain	F: PRK04342_2nd	ECOD (1.6)
B	PRK14868	e2q2eB4	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PRK14868	ECOD (1.6)
B	FbpA_2nd_1	e2q2eB2	A: alpha arrays	X: HhH/H2TH	H: H2TH (From Topology)	T: H2TH	F: FbpA_2nd_1	ECOD (1.6)
B	Topo-VIb_trans	e2q2eB3	A: a+b two layers	X: Ribosomal protein S5 domain 2-like (From Topology)	H: Ribosomal protein S5 domain 2-like (From Topology)	T: Ribosomal protein S5 domain 2-like	F: Topo-VIb_trans	ECOD (1.6)
B	HATPase_c_3	e2q2eB1	A: a+b two layers	X: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase-like	H: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase (From Topology)	T: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	F: HATPase_c_3	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
A	3.40.1360.10	Alpha Beta	3-Layer(aba) Sandwich	Dna Topoisomerase Vi A Subunit	Chain: A, domain 2	CATH (4.3.0)
B	3.30.565.10	Alpha Beta	2-Layer Sandwich	Heat Shock Protein 90	Histidine kinase-like ATPase, C-terminal domain	CATH (4.3.0)
B	1.10.8.50	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
B	3.30.230.10	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S5	domain 2	CATH (4.3.0)
B	6.10.20.80	Special	Helix non-globular	Arc Repressor Mutant, subunit A		CATH (4.3.0)
B	2.60.40.2960	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Type II DNA topoisomerase VI subunit A	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding anion binding adenyl nucleotide binding cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding DNA binding nucleic acid binding ATP-dependent activity, acting on DNA nucleic acid conformation isomerase activity isomerase activity catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid DNA topoisomerase activity DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity catalytic activity macromolecular conformation isomerase activity ATP-dependent activity	nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process chromosome organization DNA conformation change cellular component organization DNA topological change organelle organization cellular component organization or biogenesis	intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle chromosome
B	Type 2 DNA topoisomerase 6 subunit B	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding DNA binding nucleic acid binding ATP-dependent activity, acting on DNA nucleic acid conformation isomerase activity isomerase activity catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid DNA topoisomerase activity DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity catalytic activity macromolecular conformation isomerase activity ATP-dependent activity	nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process chromosome organization DNA conformation change cellular component organization DNA topological change organelle organization cellular component organization or biogenesis	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR034136	Topoisomerase 6 subunit A/Spo11, TOPRIM domain	Domain
A	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A	IPR002815	Spo11/DNA topoisomerase VI subunit A	Family
A	IPR049333	Type II DNA topoisomerase VI subunit A, all-beta domain	Domain
A	IPR036078	Spo11/DNA topoisomerase VI subunit A superfamily	Homologous Superfamily
A	IPR013049	Spo11/DNA topoisomerase VI, subunit A, N-terminal	Domain
A	IPR004085	DNA topoisomerase VI, subunit A	Family
B	IPR005734	DNA topoisomerase VI, subunit B	Family
B	IPR015320	DNA topoisomerase VI, subunit B, transducer	Domain
B	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
B	IPR003594	Histidine kinase/HSP90-like ATPase domain	Domain
B	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
B	IPR040494	DNA topoisomerase VI, subunit B, C-terminal	Domain
B	IPR010979	Small ribosomal subunit protein uS13-like, H2TH	Homologous Superfamily
B	IPR014721	Small ribosomal subunit protein uS5 domain 2-type fold, subgroup	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.