Annotations: 2ATQ

RB69 single-stranded DNA binding protein-DNA polymerase fusion

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 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)
B	d2atqb1	All beta proteins	OB-fold	Nucleic acid-binding proteins	Phage ssDNA-binding proteins	Gene 32 protein (gp32) core	(Escherichia phage RB69 ) [TaxId: 12353 ],	SCOPe (2.08)
A	d2atqa1	Alpha and beta proteins (a/b)	Ribonuclease H-like motif	Ribonuclease H-like	DnaQ-like 3'-5' exonuclease	Exonuclease domain of family B DNA polymerases	(Escherichia phage RB69 ) [TaxId: 12353 ],	SCOPe (2.08)
A	d2atqa2	Multi-domain proteins (alpha and beta)	DNA/RNA polymerases	DNA/RNA polymerases	DNA polymerase I	Family B DNA polymerase	(Escherichia phage RB69 ) [TaxId: 12353 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Nucleic acid-binding proteins	8033453	3000135	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Ribonuclease H-like	8033947	3000143	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8033949	3001272	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8033949	3001272	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	Cpn10	e2atqB1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Cpn10	ECOD (v295.2)
A	Hexokinase_2	e2atqA4	A: alpha arrays	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: C-terminal subdomain in Lon-related proteases catalytic domains	F: Hexokinase_2	ECOD (v295.2)
A		e2atqA5	A: alpha arrays	X: DEATH domain	H: PH domain-like	T: PH domain-like	F:	ECOD (v295.2)
A	DAO	e2atqA7	A: alpha arrays	X: amino-terminal domain of OmpATb	H: amino-terminal domain of OmpATb	T: amino-terminal domain of OmpATb	F: DAO	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.90.198.10	Alpha Beta	Alpha-Beta Complex	Replication Fork Single-Stranded DNA Binding Protein	Replication Fork Single-Stranded Dna Binding Protein	CATH (4.3.0)
A	3.30.342.10	Alpha Beta	2-Layer Sandwich	DNA Polymerase	Chain A, domain 1	CATH (4.3.0)
A	3.30.420.10	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)
A	3.90.1600.10	Alpha Beta	Alpha-Beta Complex	Palm domain of DNA polymerase	B family DNA polymerase, palm domain	CATH (4.3.0)
A	1.10.287.690	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	B family DNA polymerase, finger domain	CATH (4.3.0)
A	1.20.1280.300	Mainly Alpha	Up-down Bundle	Monooxygenase		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF08804	gp32 DNA binding protein like (gp32)	gp32 DNA binding protein like	gp32 is a single stranded (ss) DNA binding protein in bacteriophage T4 that is essential for DNA replication, recombination and repair. The ssDNA binding cleft of gp32 comprises regions from three structural subdomains [1].	Domain
A	PF00136	DNA polymerase family B (DNA_pol_B)	DNA polymerase family B	-	Family
A	PF03104	DNA polymerase family B, exonuclease domain (DNA_pol_B_exo1)	DNA polymerase family B, exonuclease domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	gp32	cation binding ion binding binding metal ion binding small molecule binding DNA binding single-stranded DNA binding nucleic acid binding	nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process viral DNA genome replication viral life cycle nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid biosynthetic process biosynthetic process nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process viral DNA genome replication viral life cycle nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid biosynthetic process biosynthetic process viral genome replication viral process bidirectional double-stranded viral DNA replication DNA biosynthetic process cellular response to stimulus response to stimulus cellular response to stress DNA damage response response to stress DNA repair DNA recombination	-
A	DNA polymerase	catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups DNA binding binding nucleic acid binding hydrolase activity, acting on ester bonds nuclease activity 3'-5' exonuclease activity catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups DNA binding binding nucleic acid binding hydrolase activity, acting on ester bonds nuclease activity 3'-5' exonuclease activity hydrolase activity exonuclease activity nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding cation binding ion binding metal ion binding	viral DNA genome replication primary metabolic process viral life cycle DNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process viral genome replication viral process bidirectional double-stranded viral DNA replication metabolic process viral DNA genome replication primary metabolic process viral life cycle DNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process viral genome replication viral process bidirectional double-stranded viral DNA replication metabolic process cellular process macromolecule metabolic process DNA biosynthetic process DNA-templated DNA replication DNA replication	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR044947	Bacteriophage T4, Gp32, single-stranded DNA-binding superfamily	Homologous Superfamily
B	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
B	IPR046395	Bacteriophage T4, Gp32, single-stranded DNA-binding	Family
B	IPR012339	Bacteriophage T4, Gp32, single-stranded DNA-binding domain	Domain
A	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
A	IPR006134	DNA-directed DNA polymerase, family B, multifunctional domain	Domain
A	IPR034749	DNA-directed DNA polymerase T4 type	Family
A	IPR006172	DNA-directed DNA polymerase, family B	Family
A	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A	IPR006133	DNA-directed DNA polymerase, family B, exonuclease domain	Domain
A	IPR050240	DNA polymerase type-B	Family
A	IPR017964	DNA-directed DNA polymerase, family B, conserved site	Conserved Site
A	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily
A	IPR023211	DNA polymerase, palm domain superfamily	Homologous Superfamily

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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.