1FC3

THE CRYSTAL STRUCTURE OF TRANS-ACTIVATION DOMAIN OF THE SPORULATION RESPONSE REGULATOR, SPO0A

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	d1fc3a_	All alpha proteins	DNA/RNA-binding 3-helical bundle	C-terminal effector domain of the bipartite response regulators	Spo0A	Spo0A	(Geobacillus stearothermophilus ) [TaxId: 1422 ],	SCOPe (2.08)
B	d1fc3b_	All alpha proteins	DNA/RNA-binding 3-helical bundle	C-terminal effector domain of the bipartite response regulators	Spo0A	Spo0A	(Geobacillus stearothermophilus ) [TaxId: 1422 ],	SCOPe (2.08)
C	d1fc3c_	All alpha proteins	DNA/RNA-binding 3-helical bundle	C-terminal effector domain of the bipartite response regulators	Spo0A	Spo0A	(Geobacillus stearothermophilus ) [TaxId: 1422 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Spo0A	8024266	4000726	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	C-terminal effector domain of the bipartite response regulators	8036645	3001179	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	C-terminal effector domain of the bipartite response regulators	8036645	3001179	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	C-terminal effector domain of the bipartite response regulators	8036645	3001179	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	Spo0A_C	e1fc3A1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, LuxR-like	F: Spo0A_C	ECOD (1.6)
B	Spo0A_C	e1fc3B1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, LuxR-like	F: Spo0A_C	ECOD (1.6)
C	Spo0A_C	e1fc3C1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, LuxR-like	F: Spo0A_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
B	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
C	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF08769	Sporulation initiation factor Spo0A C terminal (Spo0A_C)	Sporulation initiation factor Spo0A C terminal	The response regulator Spo0A is comprised of a phophoacceptor domain and a transcription activation domain. This domain corresponds to the transcription activation domain and forms an alpha helical structure comprising of 6 alpha helices. The struc ...	The response regulator Spo0A is comprised of a phophoacceptor domain and a transcription activation domain. This domain corresponds to the transcription activation domain and forms an alpha helical structure comprising of 6 alpha helices. The structure contains a helix-turn-helix and binds DNA [1][2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	SPO0A	DNA binding binding nucleic acid binding cation binding ion binding calcium ion binding metal ion binding small molecule binding transcription regulator activity DNA-binding transcription factor activity	cellular response to stimulus regulation of biological process phosphorelay signal transduction system regulation of cellular process response to stimulus signaling biological regulation intracellular signal transduction cell communication cellular process signal transduction detection of stimulus sporulation resulting in formation of a cellular spore developmental process cellular response to stimulus regulation of biological process phosphorelay signal transduction system regulation of cellular process response to stimulus signaling biological regulation intracellular signal transduction cell communication cellular process signal transduction detection of stimulus sporulation resulting in formation of a cellular spore developmental process anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development sporulation regulation of developmental process regulation of sporulation resulting in formation of a cellular spore regulation of sporulation	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR011006	CheY-like superfamily	Homologous Superfamily
A, B, C	IPR001789	Signal transduction response regulator, receiver domain	Domain
A, B, C	IPR016032	Signal transduction response regulator, C-terminal effector	Homologous Superfamily
A, B, C	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B, C	IPR014879	Sporulation initiation factor Spo0A, C-terminal	Domain
A, B, C	IPR012052	Sporulation transcription factor Spo0A	Family
A, B, C	IPR052048	Signal Transduction Response Regulator	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.