Annotations: 3C94

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3c94a2	Alpha and beta proteins (a/b)	Ribonuclease H-like motif	Ribonuclease H-like	DnaQ-like 3'-5' exonuclease	automated matches	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d3c94a3	Artifacts	Tags	Tags	Tags	C-terminal Tags	(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	Ribonuclease H-like	8044547	3000143	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	RNase_T	e3c94A1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: RNase_T	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.420.10	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)
A	3.30.1520.20	Alpha Beta	2-Layer Sandwich	PX Domain	Exonuclease ExoI, domain 2	CATH (4.3.0)
A	1.20.1280.70	Mainly Alpha	Up-down Bundle	Monooxygenase	Exonuclease ExoI, domain 3	CATH (4.3.0)
A	1.10.287.1240	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF08411	Exonuclease C-terminal (Exonuc_X-T_C)	Exonuclease C-terminal	-	Family
A	PF00929	Exonuclease (RNase_T)	Exonuclease	This family includes a variety of exonuclease proteins, such as ribonuclease T and the epsilon subunit of DNA polymerase III.;	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Exodeoxyribonuclease I	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid 5'-deoxyribose-5-phosphate lyase activity lyase activity catalytic activity carbon-oxygen lyase activity DNA exonuclease activity 3'-5' exonuclease activity cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid 5'-deoxyribose-5-phosphate lyase activity lyase activity catalytic activity carbon-oxygen lyase activity DNA exonuclease activity 3'-5' exonuclease activity hydrolase activity DNA exonuclease activity, producing 5'-phosphomonoesters DNA nuclease activity exonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters single-stranded DNA exodeoxyribonuclease activity nuclease activity hydrolase activity, acting on ester bonds 3'-5'-DNA exonuclease activity exonuclease activity single-stranded DNA 3'-5' DNA exonuclease activity 3'-5'-RNA exonuclease activity catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters RNA exonuclease activity RNA nuclease activity DNA binding single-stranded DNA binding nucleic acid binding	catabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process DNA catabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process cellular response to stimulus response to stimulus catabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process DNA catabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process cellular response to stimulus response to stimulus cellular response to stress DNA damage response response to stress DNA repair DNA-templated DNA replication DNA replication DNA replication termination	-
B, C	Single-stranded DNA-binding C-terminal tail peptide	enzyme regulator activity enzyme activator activity molecular function activator activity molecular function regulator activity identical protein binding protein binding binding DNA binding single-stranded DNA binding nucleic acid binding	cellular response to stimulus mismatch repair response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process DNA repair cellular response to stimulus mismatch repair response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process DNA repair DNA-templated DNA replication DNA replication DNA recombination recombinational repair SOS response	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex nucleoid single-stranded DNA-binding protein complex protein-DNA complex intracellular membraneless organelle chromosome intracellular organelle organelle membraneless organelle replication fork cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex nucleoid single-stranded DNA-binding protein complex protein-DNA complex intracellular membraneless organelle chromosome intracellular organelle organelle membraneless organelle replication fork replisome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
A	IPR038649	Exonuclease I, SH3-like domain superfamily	Homologous Superfamily
A	IPR023607	Exodeoxyribonuclease I	Family
A	IPR034747	Exonuclease I, SH3-like domain	Domain
A	IPR034748	Exonuclease I, C-terminal alpha-helical domain	Domain
A	IPR013620	Exodeoxyribonuclease I, C-terminal	Domain
A	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily
A	IPR013520	Exonuclease, RNase T/DNA polymerase III	Domain
A	IPR022894	Oligoribonuclease	Family
B, C	IPR011344	Single-stranded DNA-binding protein	Family
B, C	IPR000424	Primosome PriB/single-strand DNA-binding	Family
B, C	IPR012340	Nucleic acid-binding, OB-fold	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.