9C4D

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2B Superfamily	Winged helix DNA-binding domain	8058120	3000034	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	DtxR dimerization domain-like	8058121	3000063	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	DtxR dimerization domain-like	8058121	3000063	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Winged helix DNA-binding domain	8058120	3000034	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Winged helix DNA-binding domain	8058120	3000034	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	DtxR dimerization domain-like	8058121	3000063	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Winged helix DNA-binding domain	8058120	3000034	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	DtxR dimerization domain-like	8058121	3000063	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Winged helix DNA-binding domain	8058120	3000034	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	DtxR dimerization domain-like	8058121	3000063	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	DtxR dimerization domain-like	8058121	3000063	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Winged helix DNA-binding domain	8058120	3000034	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	DtxR dimerization domain-like	8058121	3000063	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	Winged helix DNA-binding domain	8058120	3000034	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	Winged helix DNA-binding domain	8058120	3000034	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	DtxR dimerization domain-like	8058121	3000063	SCOP2B (2022-06-29)

Chains	Accession	Name	Description	Comments	Source
C, D, E, F, G C, D, E, F, G, H, I, J	PF02742	Iron dependent repressor, metal binding and dimerisation domain (Fe_dep_repr_C)	Iron dependent repressor, metal binding and dimerisation domain	This family includes the Diphtheria toxin repressor [1]. It acts as an iron-binding repressor of diphtheria toxin gene expression and may serve as a global regulator of gene expression. DTXR comprises an N-terminal DNA-binding domain, an interface do ...	This family includes the Diphtheria toxin repressor [1]. It acts as an iron-binding repressor of diphtheria toxin gene expression and may serve as a global regulator of gene expression. DTXR comprises an N-terminal DNA-binding domain, an interface domain (which contains two metal-binding sites) and a third, very flexible C-terminal domain. The second domain is responsible for dimerization and metal binding. Binding of DTXR to Tox operator requires a divalent metal ion such as cobalt, ferric, manganese and nickel whereas zinc shows weak activation [2]. This domain can also bind Cd(II), Ca(II) and Cu(II) (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D, E, F, G C, D, E, F, G, H, I, J	HTH-type transcriptional regulator MntR	DNA binding binding organic cyclic compound binding nucleic acid binding cation binding manganese ion binding transition metal ion binding ion binding metal ion binding small molecule binding transcription regulator activity DNA-binding transcription factor activity protein binding protein dimerization activity	inorganic ion homeostasis homeostatic process manganese ion homeostasis intracellular manganese ion homeostasis cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis	intracellular anatomical structure cytoplasm cellular anatomical entity
A	DNA (77-MER)	-	-	-
B	DNA (77-MER)	-	-	-

Chains	Accession	Name	Type
C, D, E, F, G C, D, E, F, G, H, I, J	IPR036421	Iron dependent repressor, metal binding and dimerisation domain superfamily	Homologous Superfamily
C, D, E, F, G C, D, E, F, G, H, I, J	IPR022687	DTXR-type HTH domain	Domain
C, D, E, F, G C, D, E, F, G, H, I, J	IPR022897	HTH-type transcription regulator MntR	Family
C, D, E, F, G C, D, E, F, G, H, I, J	IPR022689	Iron dependent repressor	Family
C, D, E, F, G C, D, E, F, G, H, I, J	IPR001367	Iron dependent repressor, metal binding and dimerisation domain	Domain
C, D, E, F, G C, D, E, F, G, H, I, J	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
C, D, E, F, G C, D, E, F, G, H, I, J	IPR050536	DtxR/MntR Metal-Dependent Regulators	Family
C, D, E, F, G C, D, E, F, G, H, I, J	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily