Annotations: 2B21

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2b21a1	All alpha proteins	SAM domain-like	Rad51 N-terminal domain-like	DNA repair protein Rad51, N-terminal domain	DNA repair protein Rad51, N-terminal domain	(Methanococcus voltae ) [TaxId: 2188 ],	SCOPe (2.08)
A	d2b21a2	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	RecA protein-like (ATPase-domain)	DNA repair protein Rad51, catalytic domain	(Methanococcus voltae ) [TaxId: 2188 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	RecA-like P-loop NTPases	8018159	3002019	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Helix-hairpin-helix tandem	8018163	3000163	SCOP2B (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	HHH_5	e2b21A1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: HHH_5	ECOD (1.6)
A	RecA	e2b21A2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: RecA	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.150.20	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF08423	Rad51 (Rad51)	Rad51	Rad51 is a DNA repair and recombination protein and is a homologue of the bacterial ATPase RecA protein.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DNA repair and recombination protein radA	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 pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity DNA binding damaged DNA binding nucleic acid binding identical protein binding protein binding ATP-dependent activity, acting on DNA DNA damage sensor activity molecular sensor activity catalytic activity, acting on DNA ATP-dependent DNA damage sensor activity catalytic activity, acting on a nucleic acid molecular function regulator activity	cellular response to stimulus response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process DNA repair DNA recombination	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR013632	DNA recombination and repair protein Rad51-like, C-terminal	Domain
A	IPR016467	DNA recombination and repair protein, RecA-like	Family
A	IPR020588	DNA recombination and repair protein RecA-like, ATP-binding domain	Domain
A	IPR020587	DNA recombination and repair protein RecA, monomer-monomer interface	Domain
A	IPR003593	AAA+ ATPase domain	Domain
A	IPR011938	DNA recombination/repair protein RadA	Family
A	IPR010995	DNA repair Rad51/transcription factor NusA, alpha-helical	Homologous Superfamily
A	IPR003583	Helix-hairpin-helix DNA-binding motif, class 1	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	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.