Annotations: 2WP0

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	SIS domain/Ribosomal protein S2-like	8106652	3001397	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	SIS domain/Ribosomal protein S2-like	8106652	3001397	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	HobA	e2wp0A1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Ribosomal protein S2/SIS domain (From Topology)	T: Ribosomal protein S2/SIS domain	F: HobA	ECOD (1.6)
B	HobA	e2wp0B1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Ribosomal protein S2/SIS domain (From Topology)	T: Ribosomal protein S2/SIS domain	F: HobA	ECOD (1.6)
C	DnaA_N	e2wp0C1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ribosome-binding factor A (RbfA)-related (From Topology)	T: Ribosome-binding factor A (RbfA)-related	F: DnaA_N	ECOD (1.6)
D	DnaA_N	e2wp0D1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ribosome-binding factor A (RbfA)-related (From Topology)	T: Ribosome-binding factor A (RbfA)-related	F: DnaA_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.11670	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	DNA replication regulator HobA	CATH (4.3.0)
B	3.40.50.11670	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	DNA replication regulator HobA	CATH (4.3.0)
C	3.30.300.180	Alpha Beta	2-Layer Sandwich	GMP Synthetase	Chain A, domain 3	CATH (4.3.0)
D	3.30.300.180	Alpha Beta	2-Layer Sandwich	GMP Synthetase	Chain A, domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF12163	DNA replication regulator (HobA)	DNA replication regulator	This family of proteins is found exclusively in epsilon-proteobacteria. Proteins in this family are approximately 180 amino acids in length. The structure of HobA is a modified Rossmann fold consisting of a five-stranded parallel beta-sheet (beta1-5) ...	This family of proteins is found exclusively in epsilon-proteobacteria. Proteins in this family are approximately 180 amino acids in length. The structure of HobA is a modified Rossmann fold consisting of a five-stranded parallel beta-sheet (beta1-5) flanked on one side by alpha-2, alpha-3 and alpha-6 helices and alpha-4 and alpha-5 on the other. The alpha-1 helix is extended away from and has minimal interaction with the globular part of the protein. Four monomers interact to form a tetrameric molecule. Four calcium atoms bind to the tetramer and these binding sites may have functional relevance. The function of HobA is to regulate DNA replication and its does this by binding to DNA-A, but the exact mechanism of how this regulation occurs is purely speculative	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	HOBA	cation binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding	-	-
C, D	CHROMOSOMAL REPLICATION INITIATOR PROTEIN DNAA	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding double-stranded DNA binding nucleic acid binding DNA replication origin 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 catalytic activity ATP-dependent activity	nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process DNA-templated DNA replication DNA replication initiation regulation of biological process regulation of cellular process biological regulation regulation of macromolecule metabolic 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 DNA-templated DNA replication DNA replication initiation regulation of biological process regulation of cellular process biological regulation regulation of macromolecule metabolic process regulation of primary metabolic process regulation of nucleobase-containing compound metabolic process regulation of metabolic process regulation of DNA replication regulation of DNA metabolic process	cell periphery cellular anatomical structure plasma membrane membrane intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR021011	DNA replication regulator, HobA	Family
A, B	IPR038381	DNA replication regulator HobA superfamily	Homologous Superfamily
C, D	IPR038454	DnaA, N-terminal domain superfamily	Homologous Superfamily
C, D	IPR018312	Chromosomal replication control, initiator DnaA, conserved site	Conserved Site
C, D	IPR013159	Chromosomal replication initiator, DnaA C-terminal	Domain
C, D	IPR001957	Chromosomal replication control, initiator DnaA	Family
C, D	IPR013317	Chromosomal replication initiator protein DnaA, ATPAse domain	Domain
C, D	IPR003593	AAA+ ATPase domain	Domain
C, D	IPR020591	Chromosomal replication control, initiator DnaA-like	Family
C, D	IPR010921	Trp repressor/replication initiator	Homologous Superfamily
C, D	IPR027417	P-loop containing nucleoside triphosphate hydrolase	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.