4TPS

Sporulation Inhibitor of DNA Replication, SirA, in complex with Domain I of DnaA

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	KA1-like	8090857	3001856	SCOP2B (2022-06-29)
C	SCOP2 Family	SirA-like	8045527	4004516	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	KA1-like	8090857	3001856	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	RbfA-like	8090860	3000809	SCOP2B (2022-06-29)
D	SCOP2 Family	DnaA N-terminal domain-like	8046812	4005309	SCOP2 (2022-06-29)
D	SCOP2 Superfamily	RbfA-like	8090860	3000809	SCOP2 (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	SirA	e4tpsA1	A: a+b two layers	X: TBP-like	H: Sporulation inhibitor of replication protein SirA (From Topology)	T: Sporulation inhibitor of replication protein SirA	F: SirA	ECOD (1.6)
C	SirA	e4tpsC1	A: a+b two layers	X: TBP-like	H: Sporulation inhibitor of replication protein SirA (From Topology)	T: Sporulation inhibitor of replication protein SirA	F: SirA	ECOD (1.6)
B	DnaA_N	e4tpsB1	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	e4tpsD1	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	3.30.310.250	Alpha Beta	2-Layer Sandwich	TATA-Binding Protein	Sporulation inhibitor of replication protein SirA	CATH (4.3.0)
C	3.30.310.250	Alpha Beta	2-Layer Sandwich	TATA-Binding Protein	Sporulation inhibitor of replication protein SirA	CATH (4.3.0)
B	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, C	PF10747	Sporulation inhibitor of replication protein SirA (SirA)	Sporulation inhibitor of replication protein SirA	-	Family
B, D	PF11638	DnaA N-terminal domain (DnaA_N)	DnaA N-terminal domain	This family of proteins represents the N-terminal domain of DnaA, a protein involved in the initiation of bacterial chromosomal replication. The structure of this domain is known [1]. It is also found in three copies in some proteins such as Swiss:B5 ...	This family of proteins represents the N-terminal domain of DnaA, a protein involved in the initiation of bacterial chromosomal replication. The structure of this domain is known [1]. It is also found in three copies in some proteins such as Swiss:B5V0X4. The exact function of this domain is uncertain but it has been suggested to play a role in oligomerisation.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	Sporulation inhibitor of replication protein SirA	-	negative regulation of biological process regulation of primary metabolic process nucleobase-containing compound metabolic process organic substance metabolic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of macromolecule metabolic process regulation of biological process negative regulation of DNA replication negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process DNA metabolic process negative regulation of biological process regulation of primary metabolic process nucleobase-containing compound metabolic process organic substance metabolic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of macromolecule metabolic process regulation of biological process negative regulation of DNA replication negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process DNA metabolic process nucleic acid metabolic process organic cyclic compound metabolic process DNA replication negative regulation of DNA metabolic process metabolic process macromolecule metabolic process regulation of metabolic process regulation of DNA metabolic process regulation of DNA replication sporulation resulting in formation of a cellular spore developmental process anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development sporulation	-
B, 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 organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding 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 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 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 regulation of biological process biological regulation regulation of macromolecule metabolic 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 regulation of biological 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 plasma membrane membrane cellular anatomical entity primosome complex protein-containing complex intracellular anatomical structure protein-DNA complex chromosome DnaA-oriC complex intracellular organelle organelle intracellular non-membrane-bounded organelle replication fork cell periphery plasma membrane membrane cellular anatomical entity primosome complex protein-containing complex intracellular anatomical structure protein-DNA complex chromosome DnaA-oriC complex intracellular organelle organelle intracellular non-membrane-bounded organelle replication fork replisome non-membrane-bounded organelle cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR019683	Sporulation inhibitor of replication protein SirA	Family
A, C	IPR038449	SirA superfamily	Homologous Superfamily
B, D	IPR038454	DnaA, N-terminal domain superfamily	Homologous Superfamily
B, D	IPR024633	DnaA N-terminal domain	Domain
B, D	IPR018312	Chromosomal replication control, initiator DnaA, conserved site	Conserved Site
B, D	IPR013159	Chromosomal replication initiator, DnaA C-terminal	Domain
B, D	IPR001957	Chromosomal replication control, initiator DnaA	Family
B, D	IPR013317	Chromosomal replication initiator protein DnaA	Domain
B, D	IPR003593	AAA+ ATPase domain	Domain
B, D	IPR020591	Chromosomal replication control, initiator DnaA-like	Family
B, D	IPR010921	Trp repressor/replication initiator	Homologous Superfamily
B, D	IPR027417	P-loop containing nucleoside triphosphate hydrolase	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.