Annotations: 1F1Z

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1f1za1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	TnsA endonuclease, C-terminal domain	TnsA endonuclease, C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d1f1za2	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	TnsA endonuclease, N-terminal domain	TnsA endonuclease, N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1f1zb1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	TnsA endonuclease, C-terminal domain	TnsA endonuclease, C-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1f1zb2	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	TnsA endonuclease, N-terminal domain	TnsA endonuclease, 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	SCOP2B Superfamily	Restriction endonuclease-like	8002566	3000104	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Winged helix DNA-binding domain	8002568	3000034	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Winged helix DNA-binding domain	8002568	3000034	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Restriction endonuclease-like	8002566	3000104	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	Pox_D5	e1f1zA1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: winged helix domain	F: Pox_D5	ECOD (v294.1)
A	RecU	e1f1zA2	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: winged helix domain	F: RecU	ECOD (v294.1)
B	Pox_D5	e1f1zB1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: winged helix domain	F: Pox_D5	ECOD (v294.1)
B	RecU	e1f1zB2	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: winged helix domain	F: RecU	ECOD (v294.1)

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)
A	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	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)
B	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	TNSA ENDONUCLEASE	DNA binding binding nucleic acid binding transposase activity catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid catalytic activity hydrolase activity endonuclease activity nuclease activity cation binding ion binding metal ion binding small molecule binding	nucleobase-containing compound metabolic process DNA recombination cellular process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process transposition DNA transposition nucleic acid metabolic process	intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle chromosome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR011335	Restriction endonuclease type II-like	Homologous Superfamily
A, B	IPR014832	TnsA endonuclease C-terminal	Domain
A, B	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR011856	tRNA endonuclease-like domain superfamily	Homologous Superfamily
A, B	IPR014833	TnsA endonuclease, N-terminal	Domain

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.