4QBL

VRR_NUC domain protein

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4qbla_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Virus-type replication-repair nuclease (VRR-Nuc)	psNUC	(Psychrobacter sp. PRwf-1 ) [TaxId: 349106 ],	SCOPe (2.08)
B	d4qblb_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Virus-type replication-repair nuclease (VRR-Nuc)	psNUC	(Psychrobacter sp. PRwf-1 ) [TaxId: 349106 ],	SCOPe (2.08)
C [auth D]	d4qbld_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Virus-type replication-repair nuclease (VRR-Nuc)	psNUC	(Psychrobacter sp. PRwf-1 ) [TaxId: 349106 ],	SCOPe (2.08)
D [auth E]	d4qble_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Virus-type replication-repair nuclease (VRR-Nuc)	psNUC	(Psychrobacter sp. PRwf-1 ) [TaxId: 349106 ],	SCOPe (2.08)
E [auth F]	d4qblf_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Virus-type replication-repair nuclease (VRR-Nuc)	psNUC	(Psychrobacter sp. PRwf-1 ) [TaxId: 349106 ],	SCOPe (2.08)
F [auth C]	d4qblc_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Virus-type replication-repair nuclease (VRR-Nuc)	psNUC	(Psychrobacter sp. PRwf-1 ) [TaxId: 349106 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF08774	e4qblA1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF08774	ECOD (1.6)
B	PF08774	e4qblB1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF08774	ECOD (1.6)
C [auth D]	PF08774	e4qblD1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF08774	ECOD (1.6)
D [auth E]	PF08774	e4qblE1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF08774	ECOD (1.6)
E [auth F]	PF08774	e4qblF1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF08774	ECOD (1.6)
F [auth C]	PF08774	e4qblC1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF08774	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.1350.10	Alpha Beta	3-Layer(aba) Sandwich	Trna Endonuclease	Chain: A, domain 1	CATH (4.3.0)
B	3.40.1350.10	Alpha Beta	3-Layer(aba) Sandwich	Trna Endonuclease	Chain: A, domain 1	CATH (4.3.0)
C [auth D]	3.40.1350.10	Alpha Beta	3-Layer(aba) Sandwich	Trna Endonuclease	Chain: A, domain 1	CATH (4.3.0)
D [auth E]	3.40.1350.10	Alpha Beta	3-Layer(aba) Sandwich	Trna Endonuclease	Chain: A, domain 1	CATH (4.3.0)
E [auth F]	3.40.1350.10	Alpha Beta	3-Layer(aba) Sandwich	Trna Endonuclease	Chain: A, domain 1	CATH (4.3.0)
F [auth C]	3.40.1350.10	Alpha Beta	3-Layer(aba) Sandwich	Trna Endonuclease	Chain: A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C [auth D], D [auth E], E [auth F], A, B, C [auth D], D [auth E], E [auth F], F [auth C]	PF08774	VRR-NUC domain (VRR_NUC)	VRR-NUC domain	This is the VRR-NUC domain, a member of the PD-(D/E)XK nuclease superfamily found in FAN1 and type III restriction modification enzymes [1]. FAN1 is a a structure-selective DNA repair nuclease with 5' flap endonuclease activity, involved in the repai ...	This is the VRR-NUC domain, a member of the PD-(D/E)XK nuclease superfamily found in FAN1 and type III restriction modification enzymes [1]. FAN1 is a a structure-selective DNA repair nuclease with 5' flap endonuclease activity, involved in the repair of interstrand DNA crosslinks [2,3]. FAN1 is the only eukaryotic protein with a VRR-NUC domain. This domain is also found in TseVs antibacterial effectors secreted by the type VI secretion system (T6SS). TseVs are evolutionary related to Holliday junction resolvases and enzymes involved in DNA interstrand crosslink repair [4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C [auth D], D [auth E], E [auth F], A, B, C [auth D], D [auth E], E [auth F], F [auth C]	VRR-NUC	binding organic cyclic compound binding nucleic acid binding nuclease activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity cation binding ion binding metal ion binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C [auth D], D [auth E], E [auth F], A, B, C [auth D], D [auth E], E [auth F], F [auth C]	IPR011856	tRNA endonuclease-like domain superfamily	Homologous Superfamily
A, B, C [auth D], D [auth E], E [auth F], A, B, C [auth D], D [auth E], E [auth F], F [auth C]	IPR014883	VRR-NUC domain	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.