Annotations: 1FBU

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1fbua1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	Heat-shock transcription factor	Heat-shock transcription factor	(Kluyveromyces lactis ) [TaxId: 28985 ],	SCOPe (2.08)
A	d1fbua2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Kluyveromyces lactis ) [TaxId: 28985 ],	SCOPe (2.08)
B	d1fbub1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	Heat-shock transcription factor	Heat-shock transcription factor	(Kluyveromyces lactis ) [TaxId: 28985 ],	SCOPe (2.08)
B	d1fbub2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Kluyveromyces lactis ) [TaxId: 28985 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Winged helix DNA-binding domain	8003172	3000034	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Winged helix DNA-binding domain	8003172	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	PF00447	e1fbuA1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF00447	ECOD (1.6)
B	PF00447	e1fbuB1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF00447	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00447	HSF-type DNA-binding (HSF_DNA-bind)	HSF-type DNA-binding	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	HEAT SHOCK FACTOR PROTEIN	DNA binding binding organic cyclic compound binding nucleic acid binding transcription regulator activity DNA-binding transcription factor activity sequence-specific DNA binding	-	protein-containing complex protein-DNA complex membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle nucleus intracellular membrane-bounded organelle cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR027725	Heat shock transcription factor family	Family
A, B	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR000232	Heat shock factor (HSF)-type, DNA-binding	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.