Annotations: 8AB0

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth C]	Tlr3_TMD	e8ab0C1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Tlr3_TMD	ECOD (v294.1)
B [auth D]	Tlr3_TMD	e8ab0D1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Tlr3_TMD	ECOD (v294.1)
C [auth E]	Tlr3_TMD	e8ab0E1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Tlr3_TMD	ECOD (v294.1)
D [auth F]	Tlr3_TMD	e8ab0F1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Tlr3_TMD	ECOD (v294.1)
E [auth G]	Tlr3_TMD	e8ab0G1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Tlr3_TMD	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth C], B [auth D], C [auth E], D [auth F]	PF21176	RecR, helix-hairpin-helix (RecR_HhH)	RecR, helix-hairpin-helix	-	Motif
A [auth C], B [auth D], C [auth E], D [auth F]	PF21175	RecR, C-terminal (RecR_C)	RecR, C-terminal	The bacterial protein RecR is an important regulator in the RecFOR homologous recombination pathway during DNA repair. It acts with RecF and RecO forming a complex that facilitates the loading of RecA onto ssDNA. RecR is a zinc metalloprotein consist ...	The bacterial protein RecR is an important regulator in the RecFOR homologous recombination pathway during DNA repair. It acts with RecF and RecO forming a complex that facilitates the loading of RecA onto ssDNA. RecR is a zinc metalloprotein consisting of a N-terminal helix-hairpin-helix (HhH) motif, a middle region containing a zinc finger motif (Pfam:PF02132) and a Toprim domain (Pfam:PF13662), and a C-terminal domain comprising a Walker B motif and a C-terminal helix [1,2]. This is the C-terminal domain of RecR, which has a divergent Walker B motif, suggesting a nucleotide binding site [1,2].	Domain
A [auth C], B [auth D], C [auth E], D [auth F]	PF02132	RecR, Cys4-zinc finger domain (RecR_ZnF)	RecR, Cys4-zinc finger domain	The bacterial protein RecR is an important regulator in the RecFOR homologous recombination pathway during DNA repair. It acts with RecF and RecO forming a complex that facilitates the loading of RecA onto ssDNA. RecR is a zinc metalloprotein consist ...	The bacterial protein RecR is an important regulator in the RecFOR homologous recombination pathway during DNA repair. It acts with RecF and RecO forming a complex that facilitates the loading of RecA onto ssDNA. RecR is a zinc metalloprotein consisting of a N-terminal helix-hairpin-helix (HhH) motif, a middle region containing a zinc finger motif and a Toprim domain (Pfam:PF13662) and a C-terminal domain comprising a Walker B motif and a C-terminal helix [1,2]. This is the zinc finger motif, which consists of four strictly conserved cysteine residues which coordinate a zinc ion. This motif is the most conserved domain in RecR proteins and plays a structural role stabilizing the 3D structure of the protein [3].	Domain
A [auth C], B [auth D], C [auth E], D [auth F]	PF13662	Toprim domain (Toprim_4)	Toprim domain	The toprim domain is found in a wide variety of enzymes involved in nucleic acid manipulation [1].	Domain
E [auth G]	PF02565	Recombination protein O C terminal (RecO_C)	Recombination protein O C terminal	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C], B [auth D], C [auth E], D [auth F]	Recombination protein RecR	DNA binding binding nucleic acid binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	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	-
F [auth X]	Oligo1	-	-	-
G [auth Y]	Oligo2	-	-	-
E [auth G]	DNA repair protein RecO	-	cellular response to stimulus double-strand break repair 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 cellular response to stimulus double-strand break repair 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	intracellular organelle bacterial nucleoid cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle nucleoid

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C], B [auth D], C [auth E], D [auth F]	IPR023627	Recombination protein RecR	Homologous Superfamily
A [auth C], B [auth D], C [auth E], D [auth F]	IPR006171	TOPRIM domain	Domain
A [auth C], B [auth D], C [auth E], D [auth F]	IPR015967	Recombination protein RecR, zinc finger domain	Domain
A [auth C], B [auth D], C [auth E], D [auth F]	IPR000093	DNA recombination protein RecR	Family
A [auth C], B [auth D], C [auth E], D [auth F]	IPR003583	Helix-hairpin-helix DNA-binding motif, class 1	Domain
A [auth C], B [auth D], C [auth E], D [auth F]	IPR034137	RecR, TOPRIM domain	Domain
E [auth G]	IPR022572	DNA replication/recombination mediator RecO, N-terminal	Domain
E [auth G]	IPR042242	Recombination protein O, C-terminal	Homologous Superfamily
E [auth G]	IPR037278	ARFGAP/RecO-like zinc finger	Homologous Superfamily
E [auth G]	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
E [auth G]	IPR003717	Recombination protein O, RecO	Family

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.