Annotations: 1STZ

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1stza1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	Heat-inducible transcription repressor HrcA, N-terminal domain	Heat-inducible transcription repressor HrcA, N-terminal domain	(Thermotoga maritima ) [TaxId: 2336 ],	SCOPe (2.08)
A	d1stza2	Alpha and beta proteins (a+b)	Profilin-like	GAF domain-like	HrcA C-terminal domain-like	Heat-inducible transcription repressor HrcA, C-terminal domain	(Thermotoga maritima ) [TaxId: 2336 ],	SCOPe (2.08)
B	d1stzb1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	Heat-inducible transcription repressor HrcA, N-terminal domain	Heat-inducible transcription repressor HrcA, N-terminal domain	(Thermotoga maritima ) [TaxId: 2336 ],	SCOPe (2.08)
B	d1stzb2	Alpha and beta proteins (a+b)	Profilin-like	GAF domain-like	HrcA C-terminal domain-like	Heat-inducible transcription repressor HrcA, C-terminal domain	(Thermotoga maritima ) [TaxId: 2336 ],	SCOPe (2.08)
C	d1stzc1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	Heat-inducible transcription repressor HrcA, N-terminal domain	Heat-inducible transcription repressor HrcA, N-terminal domain	(Thermotoga maritima ) [TaxId: 2336 ],	SCOPe (2.08)
C	d1stzc2	Alpha and beta proteins (a+b)	Profilin-like	GAF domain-like	HrcA C-terminal domain-like	Heat-inducible transcription repressor HrcA, C-terminal domain	(Thermotoga maritima ) [TaxId: 2336 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	HrcA N-terminal domain-like	8002830	4000162	SCOP2 (2022-06-29)
A	SCOP2 Family	HrcA C-terminal domain-like	8002833	4000169	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Winged helix DNA-binding domain	8002831	3000034	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	GAF domain-like	8002834	3000080	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	GAF domain-like	8002834	3000080	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Winged helix DNA-binding domain	8002831	3000034	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	GAF domain-like	8002834	3000080	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	GAF domain-like	8002834	3000080	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	GAF domain-like	8002834	3000080	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Winged helix DNA-binding domain	8002831	3000034	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	PF03444	e1stzA1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF03444	ECOD (1.6)
A	F_UNCLASSIFIED	e1stzA2	A: a+b two layers	X: Enolase-N/ribosomal protein	H: Enolase N-terminal domain-like (From Topology)	T: Enolase N-terminal domain-like	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF01628	e1stzA3	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: PF01628	ECOD (1.6)
B	PF03444	e1stzB1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF03444	ECOD (1.6)
B	F_UNCLASSIFIED	e1stzB2	A: a+b two layers	X: Enolase-N/ribosomal protein	H: Enolase N-terminal domain-like (From Topology)	T: Enolase N-terminal domain-like	F: F_UNCLASSIFIED	ECOD (1.6)
B	PF01628	e1stzB3	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: PF01628	ECOD (1.6)
C	PF03444	e1stzC1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF03444	ECOD (1.6)
C	F_UNCLASSIFIED	e1stzC2	A: a+b two layers	X: Enolase-N/ribosomal protein	H: Enolase N-terminal domain-like (From Topology)	T: Enolase N-terminal domain-like	F: F_UNCLASSIFIED	ECOD (1.6)
C	PF01628	e1stzC3	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: PF01628	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)
A	3.30.450.40	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	GAF domain	CATH (4.3.0)
A	3.30.390.60	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	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)
B	3.30.450.40	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	GAF domain	CATH (4.3.0)
B	3.30.390.60	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	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)
C	3.30.450.40	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	GAF domain	CATH (4.3.0)
C	3.30.390.60	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF01628	HrcA protein C terminal domain (HrcA)	HrcA protein C terminal domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Heat-inducible transcription repressor hrcA homolog	DNA binding binding organic cyclic compound binding nucleic acid binding	regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process negative regulation of metabolic process primary metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process cellular biosynthetic process RNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process negative regulation of cellular process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process negative regulation of biosynthetic process cellular process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR002571	Heat-inducible transcription repressor HrcA	Family
A, B, C	IPR023120	Winged helix-turn-helix transcription repressor, HrcA, inserted dimerising domain superfamily	Homologous Superfamily
A, B, C	IPR029016	GAF-like domain superfamily	Homologous Superfamily
A, B, C	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B, C	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
A, B, C	IPR021153	Heat-inducible transcription repressor HrcA, C-terminal	Domain

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 R01GM133198.