Annotations: 4DNI

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	F_UNCLASSIFIED	e4dniA1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF00436	e4dniA2	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF00436	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00436	Single-strand binding protein family (SSB)	Single-strand binding protein family	This family includes single stranded binding proteins and also the primosomal replication protein N (PriB). PriB forms a complex with PriA, PriC and ssDNA.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Fusion protein of RNA-editing complex proteins MP42 and MP18	endonuclease activity nuclease activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity RNA binding binding organic cyclic compound binding nucleic acid binding DNA binding single-stranded DNA binding 3'-5'-RNA exonuclease activity catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters endonuclease activity nuclease activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity RNA binding binding organic cyclic compound binding nucleic acid binding DNA binding single-stranded DNA binding 3'-5'-RNA exonuclease activity catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid 3'-5' exonuclease activity RNA exonuclease activity RNA nuclease activity exonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters exonuclease activity RNA endonuclease activity, producing 5'-phosphomonoesters RNA endonuclease activity endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	nucleobase-containing compound metabolic process organic cyclic compound metabolic process RNA modification organic substance metabolic process macromolecule modification RNA metabolic process metabolic process primary metabolic process macromolecule metabolic process nucleic acid metabolic process response to stimulus response to metal ion response to chemical response to inorganic substance nucleobase-containing compound metabolic process organic cyclic compound metabolic process RNA modification organic substance metabolic process macromolecule modification RNA metabolic process metabolic process primary metabolic process macromolecule metabolic process nucleic acid metabolic process response to stimulus response to metal ion response to chemical response to inorganic substance mRNA modification mRNA metabolic process nucleic acid catabolic process	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle kinetoplast mitochondrial protein-containing complex protein-containing complex catalytic complex mRNA editing complex mitochondrial mRNA editing complex membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle kinetoplast mitochondrial protein-containing complex protein-containing complex catalytic complex mRNA editing complex mitochondrial mRNA editing complex nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000424	Primosome PriB/single-strand DNA-binding	Family
A	IPR017084	RNA editing complex, subunit MP18	Family
A	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A	IPR017083	RNA editing complex, nuclease subunit MP42	Family
A	IPR013087	Zinc finger C2H2-type	Domain
A	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A	IPR036236	Zinc finger C2H2 superfamily	Homologous Superfamily

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.