Annotations: 5F54

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	recJ	e5f54A2	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: recJ	ECOD (1.6)
A	DHHA1	e5f54A4	A: a+b three layers	X: C-terminal domain in DHH phosphoesterases (From Topology)	H: C-terminal domain in DHH phosphoesterases (From Topology)	T: C-terminal domain in DHH phosphoesterases	F: DHHA1	ECOD (1.6)
A	DHH	e5f54A1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: DHH phosphoesterases	F: DHH	ECOD (1.6)
A	EUF08603	e5f54A3	A: a/b three-layered sandwiches	X: Single-stranded-DNA-specific exonuclease RecJ C-terminal domain (From Topology)	H: Single-stranded-DNA-specific exonuclease RecJ C-terminal domain (From Topology)	T: Single-stranded-DNA-specific exonuclease RecJ C-terminal domain	F: EUF08603	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.1640.30	Alpha Beta	Alpha-Beta Complex	inorganic pyrophosphatase (n-terminal core)		CATH (4.3.0)
A	3.10.310.30	Alpha Beta	Roll	Diaminopimelate Epimerase	Chain A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02272	DHHA1 domain (DHHA1)	DHHA1 domain	This domain is often found adjacent to the DHH domain Pfam:PF01368 and is called DHHA1 for DHH associated domain. This domain is diagnostic of DHH subfamily 1 members [1]. This domain is also found in alanyl tRNA synthetase e.g. Swiss:P00957, suggest ...	This domain is often found adjacent to the DHH domain Pfam:PF01368 and is called DHHA1 for DHH associated domain. This domain is diagnostic of DHH subfamily 1 members [1]. This domain is also found in alanyl tRNA synthetase e.g. Swiss:P00957, suggesting that this domain may have an RNA binding function. The domain is about 60 residues long and contains a conserved GG motif.	Domain
A	PF20748	RecJ C-terminal domain, Deinococci (RecJ_C_Deinoc)	RecJ C-terminal domain, Deinococci	This domain is found at the C terminus of Single-stranded-DNA- specific exonuclease RecJ from Deinococci. This protein has four domains that form a molecule with an O-like structure [1]. The fourth domain (this entry) binds the C-terminal region of S ...	This domain is found at the C terminus of Single-stranded-DNA- specific exonuclease RecJ from Deinococci. This protein has four domains that form a molecule with an O-like structure [1]. The fourth domain (this entry) binds the C-terminal region of Single-stranded DNA-binding protein (Pfam:PF00436) to efficiently process broken DNA ends for homologous recombination [2].	Domain
A	PF01368	DHH family, N-terminal domain (DHH)	DHH family, N-terminal domain	It is predicted that this family of proteins all perform a phosphoesterase function. This domain is found at the N-terminal of the single stranded DNA exonuclease RecJ. It shows an alpha-beta configuration [2].	Domain
A	PF17768	RecJ OB domain (RecJ_OB)	RecJ OB domain	This OB-fold is found in RecJ proteins where is binds to ssDNA [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Single-stranded-DNA-specific exonuclease	hydrolase activity, acting on ester bonds nuclease activity 5'-3' exonuclease activity catalytic activity, acting on a nucleic acid hydrolase activity exonuclease activity catalytic activity binding nucleic acid binding cation binding ion binding metal ion binding small molecule binding	cellular response to stimulus 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 recombination	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR004610	Bacterial RecJ exonuclease	Family
A	IPR001667	DDH domain	Domain
A	IPR038763	DHH phosphoesterase superfamily	Homologous Superfamily
A	IPR003156	DHHA1 domain	Domain
A	IPR048918	Single-stranded-DNA-specific exonuclease RecJ, C-terminal domain, deinococcus	Domain
A	IPR041122	RecJ, OB domain	Domain
A	IPR051673	Single-stranded-DNA-specific exonuclease RecJ	Family

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.