1L0O | pdb_00001l0o

Crystal Structure of the Bacillus stearothermophilus Anti-Sigma Factor SpoIIAB with the Sporulation Sigma Factor SigmaF

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1l0ob_	Alpha and beta proteins (a+b)	ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	Histidine kinase	Anti-sigma factor spoIIab	(Geobacillus stearothermophilus ) [TaxId: 1422 ],	SCOPe (2.08)
A	d1l0oa_	Alpha and beta proteins (a+b)	ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	Histidine kinase	Anti-sigma factor spoIIab	(Geobacillus stearothermophilus ) [TaxId: 1422 ],	SCOPe (2.08)
C	d1l0oc_	All alpha proteins	DNA/RNA-binding 3-helical bundle	Sigma3 and sigma4 domains of RNA polymerase sigma factors	Sigma4 domain	SigmaF	(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)
B	SCOP2B Superfamily	GHKL (Gyrase, Hsp90, Histidine Kinase, MutL) domain-like	8040207	3000091	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	GHKL (Gyrase, Hsp90, Histidine Kinase, MutL) domain-like	8040207	3000091	SCOP2B (2022-06-29)
C	SCOP2 Family	Sigma4 domain	8028540	4003503	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	Sigma factor domain-like	8040919	3000953	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	e1l0oB1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: DUF3197	F:	ECOD (20:10:01)
A	e1l0oA1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: DUF3197	F:	ECOD (20:10:01)
C	e1l0oC1	A: HTH	X: HTH	H: Three-helical HTH	T: Sigma70_r4	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.565.10	Alpha Beta	2-Layer Sandwich	Heat Shock Protein 90	Histidine kinase-like ATPase, C-terminal domain	CATH (4.3.0)
A	3.30.565.10	Alpha Beta	2-Layer Sandwich	Heat Shock Protein 90	Histidine kinase-like ATPase, C-terminal 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)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Anti-sigma F factor	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 protein serine/threonine kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein serine kinase activity sigma factor antagonist activity transcription corepressor activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity molecular adaptor activity	developmental process asexual sporulation reproductive process sporulation developmental process involved in reproduction asexual reproduction sporulation resulting in formation of a cellular spore anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development regulation of biological process regulation of developmental process negative regulation of sporulation resulting in formation of a cellular spore negative regulation of developmental process developmental process asexual sporulation reproductive process sporulation developmental process involved in reproduction asexual reproduction sporulation resulting in formation of a cellular spore anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development regulation of biological process regulation of developmental process negative regulation of sporulation resulting in formation of a cellular spore negative regulation of developmental process biological regulation negative regulation of biological process negative regulation of sporulation regulation of sporulation resulting in formation of a cellular spore regulation of sporulation	-
C	sigma factor	DNA binding binding nucleic acid binding transcription regulator activity DNA-binding transcription factor activity sigma factor activity	sporulation resulting in formation of a cellular spore developmental process anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development sporulation RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process DNA-templated transcription initiation nucleic acid metabolic process RNA biosynthetic process sporulation resulting in formation of a cellular spore developmental process anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development sporulation RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process DNA-templated transcription initiation nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process metabolic process cellular process macromolecule metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR003594	Histidine kinase/HSP90-like ATPase domain	Domain
A, B	IPR050267	Bacterial Anti-sigma-factor Serine-Protein Kinases	Family
A, B	IPR010194	Anti-sigma F factor	Family
A, B	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
C	IPR007627	RNA polymerase sigma-70 region 2	Domain
C	IPR000943	RNA polymerase sigma-70	Domain
C	IPR014322	RNA polymerase sigma-B/F/G type	Family
C	IPR001387	Cro/C1-type, helix-turn-helix domain	Domain
C	IPR013325	RNA polymerase sigma factor, region 2	Homologous Superfamily
C	IPR013324	RNA polymerase sigma factor, region 3/4-like	Homologous Superfamily
C	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
C	IPR007630	RNA polymerase sigma-70 region 4	Domain
C	IPR014284	RNA polymerase sigma-70-like domain	Domain
C	IPR007624	RNA polymerase sigma-70 region 3	Domain
C	IPR014236	RNA polymerase sigma-F type	Family
C	IPR050239	Sigma-70 factor family, RNA polymerase initiation factors	Family

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	non-specific serine/threonine protein kinase M-CSA #760	The control of sporulation in some bacteria is controlled by sigma factors, one of which is sigma-F which triggers the cascade of gene expression in the forespore compartment of the sporulating cell. Control of sigma-F is by the SpoII proteins: SpoIIAB, which binds to sigma-F and thereby inactivates it; SpoIIAA, a non-enzymatic protein which is phosphorylated by SpoIIAB, thus inducing release of sigma-F; and SpoIIE, a phosphatase which returns SpoII-P to the dephosphorylated state. SpoIIAB has the same ATP-binding domain as other members of the GHKL superfamily. It phosphorylates the Ser 58 residue of SpoIIAA, using up ATP.	Defined by 3 residues: GLU:A-46ASN:A-50ARG:A-105 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 2.7.11.1 (UniProt) Search M-CSA Motif + EC 2.7.11.1

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

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