Annotations: 1F1Z

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
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)
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)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
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)
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)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Tn7_Tnp_TnsA_C	e1f1zB1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Tn7_Tnp_TnsA_C	ECOD (1.6)
B	Tn7_Tnp_TnsA_N	e1f1zB2	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: Tn7_Tnp_TnsA_N	ECOD (1.6)
A	Tn7_Tnp_TnsA_C	e1f1zA1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Tn7_Tnp_TnsA_C	ECOD (1.6)
A	Tn7_Tnp_TnsA_N	e1f1zA2	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: Tn7_Tnp_TnsA_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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)
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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF08721	TnsA endonuclease C terminal (Tn7_Tnp_TnsA_C)	TnsA endonuclease C terminal	The Tn7 transposase is composed of proteins TnsA and TnsB. DNA breakage at the 5' end of the transposon is carried out by TnsA, and breakage and joining at the 3' end is carried out by TnsB. The C terminal domain of TnsA binds DNA.	Domain
A, B	PF08722	TnsA-like endonuclease N terminal (Tn7_TnsA-like_N)	TnsA-like endonuclease N terminal	The Tn7 transposase is composed of proteins TnsA and TnsB. DNA breakage at the 5' end of the transposon is carried out by TnsA, and breakage and joining at the 3' end is carried out by TnsB. The N terminal domain of TnsA is catalytic [1,2]. This dom ...	The Tn7 transposase is composed of proteins TnsA and TnsB. DNA breakage at the 5' end of the transposon is carried out by TnsA, and breakage and joining at the 3' end is carried out by TnsB. The N terminal domain of TnsA is catalytic [1,2]. This domain is also found in Bacteriophage T4 gp4-like head completion protein whose nuclease activity is required for packaging [3,4]. This domain contains the catalytic triad of one basic and two acidic residues that form a restriction endonuclease-like active site and conserved between TnsA with gp4 proteins [3].	Domain

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 endonuclease activity nuclease activity catalytic activity, acting on a nucleic acid catalytic activity cation binding ion binding metal ion binding small molecule binding transposase activity catalytic activity, acting on DNA	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	IPR011856	tRNA endonuclease-like domain superfamily	Homologous Superfamily
A, B	IPR014832	TnsA endonuclease C-terminal	Domain
A, B	IPR014833	TnsA endonuclease, N-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

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.