Annotations: 1J9I

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1j9ia_	All alpha proteins	Putative DNA-binding domain	Putative DNA-binding domain	Terminase gpNU1 subunit domain	Terminase gpNU1 subunit domain	(Lambdavirus lambda ) [TaxId: 10710 ],	SCOPe (2.08)
B	d1j9ib_	All alpha proteins	Putative DNA-binding domain	Putative DNA-binding domain	Terminase gpNU1 subunit domain	Terminase gpNU1 subunit domain	(Lambdavirus lambda ) [TaxId: 10710 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Terminase gpNU1 subunit domain	8027498	4001904	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Putative DNA-binding domain	8039877	3000158	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Putative DNA-binding domain	8039877	3000158	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	PF07471	e1j9iA1	A: alpha arrays	X: HTH	H: HTH	T: Putative DNA-binding domain	F: PF07471	ECOD (1.6)
B	PF07471	e1j9iB1	A: alpha arrays	X: HTH	H: HTH	T: Putative DNA-binding domain	F: PF07471	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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	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	PF07471	Phage DNA packaging protein Nu1 (Phage_Nu1)	Phage DNA packaging protein Nu1	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	TERMINASE SMALL SUBUNIT	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 sequence-specific DNA binding DNA binding, bending sequence-specific double-stranded DNA binding double-stranded DNA binding sequence-specific DNA binding, bending nucleic acid binding	virion assembly viral process viral life cycle viral genome packaging viral DNA genome packaging	host cellular component host intracellular part host cell cytoplasm host cell part host intracellular region cellular anatomical entity viral terminase complex protein-containing complex viral terminase, small subunit

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR009061	Putative DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR010906	Bacteriophage lambda, Nu1, terminase small subunit	Family

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.