Annotations: 4CHU

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PemK_toxin	e4chuB1	A: a/b three-layered sandwiches	X: HTH	H: Toll/Interleukin receptor TIR domain	T: Toll/Interleukin receptor TIR domain	F: PemK_toxin	ECOD (v294.1)
A	PemK_toxin	e4chuA1	A: a/b three-layered sandwiches	X: HTH	H: Toll/Interleukin receptor TIR domain	T: Toll/Interleukin receptor TIR domain	F: PemK_toxin	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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)
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)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D	HYA PROMOTER FRAGMENT	-	-	-
C	HYA PROMOTER FRAGMENT	-	-	-
A, B	HTH-TYPE TRANSCRIPTIONAL REGULATOR ISCR	DNA binding double-stranded DNA binding binding nucleic acid binding iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding metal cluster binding small molecule binding transcription regulator activity DNA-binding transcription factor activity cation binding transition metal ion binding iron ion binding ion binding DNA binding double-stranded DNA binding binding nucleic acid binding iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding metal cluster binding small molecule binding transcription regulator activity DNA-binding transcription factor activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding	-	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

Chains	Accession	Name	Type
A, B	IPR010242	Transcription factor HTH, IscR	Family
A, B	IPR030489	Transcription regulator Rrf2-type, conserved site	Conserved Site
A, B	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR000944	Transcription regulator Rrf2	Family
A, B	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily