1B79

N-TERMINAL DOMAIN OF DNA REPLICATION PROTEIN DNAB

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)
A	d1b79a_	All alpha proteins	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1b79b_	All alpha proteins	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
C	d1b79c_	All alpha proteins	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
D	d1b79d_	All alpha proteins	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	N-terminal domain of DnaB helicase	(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	SCOP2 Family	N-terminal domain of DnaB helicase	8025628	4001083	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	N-terminal domain of DnaB helicase	8038007	3000700	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	N-terminal domain of DnaB helicase	8038007	3000700	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	N-terminal domain of DnaB helicase	8038007	3000700	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	N-terminal domain of DnaB helicase	8038007	3000700	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	PF00772	e1b79A1	A: alpha arrays	X: DnaB helicase N-terminal domain-related (From Topology)	H: DnaB helicase N-terminal domain-related (From Topology)	T: DnaB helicase N-terminal domain-related	F: PF00772	ECOD (1.6)
B	PF00772	e1b79B1	A: alpha arrays	X: DnaB helicase N-terminal domain-related (From Topology)	H: DnaB helicase N-terminal domain-related (From Topology)	T: DnaB helicase N-terminal domain-related	F: PF00772	ECOD (1.6)
C	PF00772	e1b79C1	A: alpha arrays	X: DnaB helicase N-terminal domain-related (From Topology)	H: DnaB helicase N-terminal domain-related (From Topology)	T: DnaB helicase N-terminal domain-related	F: PF00772	ECOD (1.6)
D	PF00772	e1b79D1	A: alpha arrays	X: DnaB helicase N-terminal domain-related (From Topology)	H: DnaB helicase N-terminal domain-related (From Topology)	T: DnaB helicase N-terminal domain-related	F: PF00772	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.860.10	Mainly Alpha	Orthogonal Bundle	DNAb Helicase	Chain A	CATH (4.3.0)
B	1.10.860.10	Mainly Alpha	Orthogonal Bundle	DNAb Helicase	Chain A	CATH (4.3.0)
C	1.10.860.10	Mainly Alpha	Orthogonal Bundle	DNAb Helicase	Chain A	CATH (4.3.0)
D	1.10.860.10	Mainly Alpha	Orthogonal Bundle	DNAb Helicase	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00772	DnaB-like helicase N terminal domain (DnaB)	DnaB-like helicase N terminal domain	The hexameric helicase DnaB unwinds the DNA duplex at the Escherichia coli chromosome replication fork. Although the mechanism by which DnaB both couples ATP hydrolysis to translocation along DNA and denatures the duplex is unknown, a change in the q ...	The hexameric helicase DnaB unwinds the DNA duplex at the Escherichia coli chromosome replication fork. Although the mechanism by which DnaB both couples ATP hydrolysis to translocation along DNA and denatures the duplex is unknown, a change in the quaternary structure of the protein involving dimerisation of the N-terminal domain has been observed and may occur during the enzymatic cycle. This N-terminal domain is required both for interaction with other proteins in the primosome and for DnaB helicase activity [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	DnaB Helicase	catalytic activity, acting on a nucleic acid helicase activity catalytic activity ATP-dependent activity ATP-dependent activity, acting on DNA DNA helicase activity catalytic activity, acting on DNA binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding catalytic activity, acting on a nucleic acid helicase activity catalytic activity ATP-dependent activity ATP-dependent activity, acting on DNA DNA helicase activity catalytic activity, acting on DNA 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 DNA binding nucleic acid 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 identical protein binding protein binding	nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process DNA-templated DNA replication DNA replication initiation DNA-templated DNA replication maintenance of fidelity replication fork processing cellular biosynthetic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process DNA-templated DNA replication DNA replication initiation DNA-templated DNA replication maintenance of fidelity replication fork processing cellular biosynthetic process DNA replication, synthesis of primer cellular metabolic process RNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process organic cyclic compound biosynthetic process organic substance biosynthetic process cellular process cellular component organization DNA duplex unwinding organelle organization DNA geometric change chromosome organization DNA conformation change cellular component organization or biogenesis response to ionizing radiation response to stimulus response to radiation response to abiotic stimulus DNA unwinding involved in DNA replication	primosome complex protein-containing complex intracellular anatomical structure protein-DNA complex pre-primosome complex chromosome cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle replication fork replisome non-membrane-bounded organelle DnaB-DnaC-Rep-PriC complex primosome complex protein-containing complex intracellular anatomical structure protein-DNA complex pre-primosome complex chromosome cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle replication fork replisome non-membrane-bounded organelle DnaB-DnaC-Rep-PriC complex DnaB-DnaC-DnaT-PriA-PriC complex cytoplasm cytosol DnaB-DnaC complex catalytic complex core primosome complex DnaB-DnaG complex DNA helicase complex DnaB-DnaC-DnaT-PriA-PriB complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR007692	DNA helicase, DnaB type	Family
A, B, C, D	IPR003593	AAA+ ATPase domain	Domain
A, B, C, D	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, B, C, D	IPR016136	DNA helicase DnaB, N-terminal/DNA primase DnaG, C-terminal	Homologous Superfamily
A, B, C, D	IPR007693	DNA helicase, DnaB-like, N-terminal	Domain
A, B, C, D	IPR007694	DNA helicase, DnaB-like, C-terminal	Domain
A, B, C, D	IPR036185	DNA helicase, DnaB-like, N-terminal domain 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.