Annotations: 2XCT

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth B]	PF00521	e2xctB9	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF00521	ECOD (1.6)
A [auth B]	PF00521	e2xctB1	A: alpha bundles	X: alpha-helical domain in type II DNA topoisomerase (From Topology)	H: alpha-helical domain in type II DNA topoisomerase (From Topology)	T: alpha-helical domain in type II DNA topoisomerase	F: PF00521	ECOD (1.6)
A [auth B]	PF00521	e2xctB10	A: a+b two layers	X: a+b domain in type II DNA topoisomerase (From Topology)	H: a+b domain in type II DNA topoisomerase (From Topology)	T: a+b domain in type II DNA topoisomerase	F: PF00521	ECOD (1.6)
A [auth B]	PF00986,PF01751	e2xctB11	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: Toprim domain	F: PF00986,PF01751	ECOD (1.6)
B [auth D]	PF00521	e2xctD9	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF00521	ECOD (1.6)
B [auth D]	PF00521	e2xctD1	A: alpha bundles	X: alpha-helical domain in type II DNA topoisomerase (From Topology)	H: alpha-helical domain in type II DNA topoisomerase (From Topology)	T: alpha-helical domain in type II DNA topoisomerase	F: PF00521	ECOD (1.6)
B [auth D]	PF00521	e2xctD10	A: a+b two layers	X: a+b domain in type II DNA topoisomerase (From Topology)	H: a+b domain in type II DNA topoisomerase (From Topology)	T: a+b domain in type II DNA topoisomerase	F: PF00521	ECOD (1.6)
B [auth D]	PF00986,PF01751	e2xctD11	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: Toprim domain	F: PF00986,PF01751	ECOD (1.6)
G [auth S]	PF00521	e2xctS6	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF00521	ECOD (1.6)
G [auth S]	PF00521	e2xctS1	A: alpha bundles	X: alpha-helical domain in type II DNA topoisomerase (From Topology)	H: alpha-helical domain in type II DNA topoisomerase (From Topology)	T: alpha-helical domain in type II DNA topoisomerase	F: PF00521	ECOD (1.6)
G [auth S]	PF00521	e2xctS7	A: a+b two layers	X: a+b domain in type II DNA topoisomerase (From Topology)	H: a+b domain in type II DNA topoisomerase (From Topology)	T: a+b domain in type II DNA topoisomerase	F: PF00521	ECOD (1.6)
G [auth S]	PF00986,PF01751	e2xctS8	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: Toprim domain	F: PF00986,PF01751	ECOD (1.6)
H [auth U]	PF00521	e2xctU2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF00521	ECOD (1.6)
H [auth U]	PF00521	e2xctU4	A: alpha bundles	X: alpha-helical domain in type II DNA topoisomerase (From Topology)	H: alpha-helical domain in type II DNA topoisomerase (From Topology)	T: alpha-helical domain in type II DNA topoisomerase	F: PF00521	ECOD (1.6)
H [auth U]	PF00521	e2xctU3	A: a+b two layers	X: a+b domain in type II DNA topoisomerase (From Topology)	H: a+b domain in type II DNA topoisomerase (From Topology)	T: a+b domain in type II DNA topoisomerase	F: PF00521	ECOD (1.6)
H [auth U]	PF00986,PF01751	e2xctU1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: Toprim domain	F: PF00986,PF01751	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Provenance Source (Version)
A [auth B]	3.40.50.670	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	CATH (4.3.0)
B [auth D]	3.40.50.670	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	CATH (4.3.0)
G [auth S]	3.40.50.670	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	CATH (4.3.0)
H [auth U]	3.40.50.670	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B], B [auth D], G [auth S], H [auth U]	PF01751	Toprim domain (Toprim)	Toprim domain	-	Family
A [auth B], B [auth D], G [auth S], H [auth U]	PF00521	DNA gyrase/topoisomerase IV, subunit A (DNA_topoisoIV)	DNA gyrase/topoisomerase IV, subunit A	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth D], G [auth S], H [auth U]	DNA GYRASE SUBUNIT B, DNA GYRASE SUBUNIT A	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound 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 isomerase activity DNA negative supercoiling 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 ATP-dependent activity cation binding metal ion binding	response to stimulus response to chemical response to antibiotic nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA-templated DNA replication DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process chromosome organization response to stimulus response to chemical response to antibiotic nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA-templated DNA replication DNA replication organic substance metabolic process metabolic 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 process cellular component organization or biogenesis	intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle chromosome cellular anatomical entity non-membrane-bounded organelle cytoplasm
C [auth E], I [auth V]	5'-D(TPGPTPGPCPGPGP*T)-3'	-	-	-
D [auth F], J [auth W]	5'-D(APGPCPCPGPTPAP*G)-3'	-	-	-
E [auth G], K [auth X]	5'-D(GPTPAPCPCPCPAPCPGPGPCP*T)-3'	-	-	-
F [auth H], L [auth Y]	5'-D(GPTPAPCPAPCPCPGPCPAPCP*A)-3'	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth D], G [auth S], H [auth U]	IPR035516	DNA gyrase/topoisomerase IV, subunit A, C-terminal	Homologous Superfamily
A [auth B], B [auth D], G [auth S], H [auth U]	IPR013760	DNA topoisomerase, type IIA-like domain superfamily	Homologous Superfamily
A [auth B], B [auth D], G [auth S], H [auth U]	IPR013757	DNA topoisomerase, type IIA, alpha-helical domain superfamily	Homologous Superfamily
A [auth B], B [auth D], G [auth S], H [auth U]	IPR013758	DNA topoisomerase, type IIA, domain A, alpha-beta	Homologous Superfamily
A [auth B], B [auth D], G [auth S], H [auth U]	IPR005743	DNA gyrase, subunit A	Family
A [auth B], B [auth D], G [auth S], H [auth U]	IPR006691	DNA gyrase/topoisomerase IV, subunit A, C-terminal repeat	Repeat
A [auth B], B [auth D], G [auth S], H [auth U]	IPR002205	DNA topoisomerase, type IIA, domain A	Domain
A [auth B], B [auth D], G [auth S], H [auth U]	IPR011557	DNA gyrase, subunit B	Family
A [auth B], B [auth D], G [auth S], H [auth U]	IPR034160	DNA gyrase subunit B, TOPRIM domain	Domain
A [auth B], B [auth D], G [auth S], H [auth U]	IPR018522	DNA topoisomerase, type IIA, conserved site	Conserved Site
A [auth B], B [auth D], G [auth S], H [auth U]	IPR003594	Histidine kinase/HSP90-like ATPase	Domain
A [auth B], B [auth D], G [auth S], H [auth U]	IPR013506	DNA topoisomerase, type IIA, subunit B, domain 2	Domain
A [auth B], B [auth D], G [auth S], H [auth U]	IPR013760	DNA topoisomerase, type IIA-like domain superfamily	Homologous Superfamily
A [auth B], B [auth D], G [auth S], H [auth U]	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
A [auth B], B [auth D], G [auth S], H [auth U]	IPR006171	TOPRIM domain	Domain
A [auth B], B [auth D], G [auth S], H [auth U]	IPR000565	DNA topoisomerase, type IIA, subunit B	Family
A [auth B], B [auth D], G [auth S], H [auth U]	IPR013759	DNA topoisomerase, type IIA, subunit B, C-terminal	Homologous Superfamily
A [auth B], B [auth D], G [auth S], H [auth U]	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
A [auth B], B [auth D], G [auth S], H [auth U]	IPR001241	DNA topoisomerase, type IIA	Family
A [auth B], B [auth D], G [auth S], H [auth U]	IPR002288	DNA gyrase B subunit, C-terminal	Domain
A [auth B], B [auth D], G [auth S], H [auth U]	IPR014721	Small ribosomal subunit protein uS5 domain 2-type fold, subgroup	Homologous Superfamily