Annotations: 1CUK

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1cuka1	All alpha proteins	RuvA C-terminal domain-like	DNA helicase RuvA subunit, C-terminal domain	DNA helicase RuvA subunit, C-terminal domain	DNA helicase RuvA subunit, C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d1cuka2	All alpha proteins	SAM domain-like	RuvA domain 2-like	DNA helicase RuvA subunit, middle domain	DNA helicase RuvA subunit, middle domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d1cuka3	All beta proteins	OB-fold	Nucleic acid-binding proteins	DNA helicase RuvA subunit, N-terminal domain	DNA helicase RuvA subunit, N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	DNA helicase RuvA subunit C-terminal domain	8024292	4000746	SCOP2 (2022-06-29)
A	SCOP2 Family	DNA helicase RuvA subunit N-terminal domain	8029541	4001893	SCOP2 (2022-06-29)
A	SCOP2 Family	DNA helicase RuvA subunit middle domain	8025326	4001026	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	DNA helicase RuvA subunit C-terminal domain	8036671	3001225	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Nucleic acid-binding proteins	8041920	3000135	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Helix-hairpin-helix tandem	8037705	3000163	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	RuvA_N	e1cukA1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: RuvA_N	ECOD (1.6)
A	HHH_5	e1cukA2	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: HHH_5	ECOD (1.6)
A	RuvA_C	e1cukA3	A: alpha arrays	X: RuvA-C	H: RuvA-C, UBA, CRAL/TRIO-N, HBS1 (From Topology)	T: RuvA-C, UBA, CRAL/TRIO-N, HBS1	F: RuvA_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
A	1.10.150.20	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
A	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07499	RuvA, C-terminal domain (RuvA_C)	RuvA, C-terminal domain	Homologous recombination is a crucial process in all living organisms. In bacteria, this process the RuvA, RuvB, and RuvC proteins are involved. More specifically the proteins process the Holliday junction DNA. RuvA is comprised of three distinct d ...	Homologous recombination is a crucial process in all living organisms. In bacteria, this process the RuvA, RuvB, and RuvC proteins are involved. More specifically the proteins process the Holliday junction DNA. RuvA is comprised of three distinct domains. The domain represents the C-terminal domain and plays a significant role in the ATP-dependent branch migration of the hetero-duplex through direct contact with RuvB [1]. Within the Holliday junction, the C-terminal domain makes no interaction with DNA [1].	Domain
A	PF01330	RuvA N terminal domain (RuvA_N)	RuvA N terminal domain	The N terminal domain of RuvA has an OB-fold structure. This domain forms the RuvA tetramer contacts [1].	Domain
A	PF14520	Helix-hairpin-helix domain (HHH_5)	Helix-hairpin-helix domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	RUVA PROTEIN	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 ATP-dependent activity, acting on DNA four-way junction helicase activity DNA helicase activity catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid helicase activity catalytic activity ATP-dependent activity DNA secondary structure binding DNA binding four-way junction DNA binding nucleic acid binding identical protein binding protein binding	cellular response to stimulus response to stimulus DNA recombination primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process cellular response to stress DNA damage response response to stress recombinational repair metabolic process cellular response to stimulus response to stimulus DNA recombination primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process cellular response to stress DNA damage response response to stress recombinational repair metabolic process cellular process macromolecule metabolic process DNA repair response to radiation response to abiotic stimulus SOS response	protein-containing complex catalytic complex DNA helicase complex Holliday junction helicase complex endodeoxyribonuclease complex Holliday junction resolvase complex intracellular protein-containing complex endonuclease complex intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036267	RuvA, C-terminal domain superfamily	Homologous Superfamily
A	IPR011114	Holliday junction DNA helicase RuvA, C-terminal	Domain
A	IPR000085	Holliday junction branch migration complex subunit RuvA	Family
A	IPR010994	RuvA domain 2-like	Homologous Superfamily
A	IPR013849	DNA helicase, Holliday junction RuvA type, domain I, bacterial	Domain
A	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A	IPR003583	Helix-hairpin-helix DNA-binding motif, class 1	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.