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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
E [auth A]d1u8ra1 All alpha proteins DNA/RNA-binding 3-helical bundle 'Winged helix' DNA-binding domain Iron-dependent repressor protein Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
E [auth A]d1u8ra2 All alpha proteins Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent regulator (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
E [auth A]d1u8ra3 All beta proteins SH3-like barrel C-terminal domain of transcriptional repressors FeoA-like Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
F [auth B]d1u8rb1 All alpha proteins DNA/RNA-binding 3-helical bundle 'Winged helix' DNA-binding domain Iron-dependent repressor protein Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
F [auth B]d1u8rb2 All alpha proteins Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent regulator (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
F [auth B]d1u8rb3 All beta proteins SH3-like barrel C-terminal domain of transcriptional repressors FeoA-like Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
G [auth C]d1u8rc1 All alpha proteins DNA/RNA-binding 3-helical bundle 'Winged helix' DNA-binding domain Iron-dependent repressor protein Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
G [auth C]d1u8rc2 All alpha proteins Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent regulator (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
G [auth C]d1u8rc3 All beta proteins SH3-like barrel C-terminal domain of transcriptional repressors FeoA-like Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
H [auth D]d1u8rd1 All alpha proteins DNA/RNA-binding 3-helical bundle 'Winged helix' DNA-binding domain Iron-dependent repressor protein Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
H [auth D]d1u8rd2 All alpha proteins Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent regulator (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
H [auth D]d1u8rd3 All beta proteins SH3-like barrel C-terminal domain of transcriptional repressors FeoA-like Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
I [auth G]d1u8rg1 All alpha proteins DNA/RNA-binding 3-helical bundle 'Winged helix' DNA-binding domain Iron-dependent repressor protein Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
I [auth G]d1u8rg2 All alpha proteins Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent regulator (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
I [auth G]d1u8rg3 All beta proteins SH3-like barrel C-terminal domain of transcriptional repressors FeoA-like Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
J [auth H]d1u8rh1 All alpha proteins DNA/RNA-binding 3-helical bundle 'Winged helix' DNA-binding domain Iron-dependent repressor protein Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
J [auth H]d1u8rh2 All alpha proteins Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent regulator (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
J [auth H]d1u8rh3 All beta proteins SH3-like barrel C-terminal domain of transcriptional repressors FeoA-like Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
K [auth I]d1u8ri1 All alpha proteins DNA/RNA-binding 3-helical bundle 'Winged helix' DNA-binding domain Iron-dependent repressor protein Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
K [auth I]d1u8ri2 All alpha proteins Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent regulator (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
K [auth I]d1u8ri3 All beta proteins SH3-like barrel C-terminal domain of transcriptional repressors FeoA-like Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
L [auth J]d1u8rj1 All alpha proteins DNA/RNA-binding 3-helical bundle 'Winged helix' DNA-binding domain Iron-dependent repressor protein Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
L [auth J]d1u8rj2 All alpha proteins Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent repressor protein, dimerization domain Iron-dependent regulator (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)
L [auth J]d1u8rj3 All beta proteins SH3-like barrel C-terminal domain of transcriptional repressors FeoA-like Iron-dependent regulator IdeR (Mycobacterium tuberculosis ) [TaxId: 1773 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
E [auth A]SCOP2B SuperfamilyWinged helix DNA-binding domain8017619 3000034 SCOP2B (2021-05-27)
E [auth A]SCOP2B SuperfamilyTranscriptional regulator domain8017617 3000121 SCOP2B (2021-05-27)
E [auth A]SCOP2B SuperfamilyDtxR dimerization domain-like8017622 3000063 SCOP2B (2021-05-27)
F [auth B]SCOP2B SuperfamilyTranscriptional regulator domain8017617 3000121 SCOP2B (2021-05-27)
F [auth B]SCOP2B SuperfamilyDtxR dimerization domain-like8017622 3000063 SCOP2B (2021-05-27)
F [auth B]SCOP2B SuperfamilyWinged helix DNA-binding domain8017619 3000034 SCOP2B (2021-05-27)
G [auth C]SCOP2B SuperfamilyWinged helix DNA-binding domain8017619 3000034 SCOP2B (2021-05-27)
G [auth C]SCOP2B SuperfamilyDtxR dimerization domain-like8017622 3000063 SCOP2B (2021-05-27)
G [auth C]SCOP2B SuperfamilyTranscriptional regulator domain8017617 3000121 SCOP2B (2021-05-27)
H [auth D]SCOP2B SuperfamilyWinged helix DNA-binding domain8017619 3000034 SCOP2B (2021-05-27)
H [auth D]SCOP2B SuperfamilyDtxR dimerization domain-like8017622 3000063 SCOP2B (2021-05-27)
H [auth D]SCOP2B SuperfamilyTranscriptional regulator domain8017617 3000121 SCOP2B (2021-05-27)
I [auth G]SCOP2B SuperfamilyDtxR dimerization domain-like8017622 3000063 SCOP2B (2021-05-27)
I [auth G]SCOP2B SuperfamilyWinged helix DNA-binding domain8017619 3000034 SCOP2B (2021-05-27)
I [auth G]SCOP2B SuperfamilyTranscriptional regulator domain8017617 3000121 SCOP2B (2021-05-27)
J [auth H]SCOP2B SuperfamilyDtxR dimerization domain-like8017622 3000063 SCOP2B (2021-05-27)
J [auth H]SCOP2B SuperfamilyWinged helix DNA-binding domain8017619 3000034 SCOP2B (2021-05-27)
J [auth H]SCOP2B SuperfamilyTranscriptional regulator domain8017617 3000121 SCOP2B (2021-05-27)
K [auth I]SCOP2B SuperfamilyWinged helix DNA-binding domain8017619 3000034 SCOP2B (2021-05-27)
K [auth I]SCOP2B SuperfamilyDtxR dimerization domain-like8017622 3000063 SCOP2B (2021-05-27)
K [auth I]SCOP2B SuperfamilyTranscriptional regulator domain8017617 3000121 SCOP2B (2021-05-27)
L [auth J]SCOP2B SuperfamilyDtxR dimerization domain-like8017622 3000063 SCOP2B (2021-05-27)
L [auth J]SCOP2B SuperfamilyTranscriptional regulator domain8017617 3000121 SCOP2B (2021-05-27)
L [auth J]SCOP2B SuperfamilyWinged helix DNA-binding domain8017619 3000034 SCOP2B (2021-05-27)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
E [auth A]PF18357e1u8rA1 A: beta barrelsX: SH3H: SH3T: SH3F: PF18357ECOD (1.6)
E [auth A]PF01325e1u8rA2 A: alpha arraysX: HTHH: HTHT: wingedF: PF01325ECOD (1.6)
E [auth A]PF02742e1u8rA3 A: alpha duplicates or obligate multimersX: Iron-dependent repressor protein, dimerization domain (From Topology)H: Iron-dependent repressor protein, dimerization domain (From Topology)T: Iron-dependent repressor protein, dimerization domainF: PF02742ECOD (1.6)
F [auth B]PF18357e1u8rB1 A: beta barrelsX: SH3H: SH3T: SH3F: PF18357ECOD (1.6)
F [auth B]PF01325e1u8rB2 A: alpha arraysX: HTHH: HTHT: wingedF: PF01325ECOD (1.6)
F [auth B]PF02742e1u8rB3 A: alpha duplicates or obligate multimersX: Iron-dependent repressor protein, dimerization domain (From Topology)H: Iron-dependent repressor protein, dimerization domain (From Topology)T: Iron-dependent repressor protein, dimerization domainF: PF02742ECOD (1.6)
G [auth C]PF18357e1u8rC1 A: beta barrelsX: SH3H: SH3T: SH3F: PF18357ECOD (1.6)
G [auth C]PF01325e1u8rC2 A: alpha arraysX: HTHH: HTHT: wingedF: PF01325ECOD (1.6)
G [auth C]PF02742e1u8rC3 A: alpha duplicates or obligate multimersX: Iron-dependent repressor protein, dimerization domain (From Topology)H: Iron-dependent repressor protein, dimerization domain (From Topology)T: Iron-dependent repressor protein, dimerization domainF: PF02742ECOD (1.6)
H [auth D]PF18357e1u8rD1 A: beta barrelsX: SH3H: SH3T: SH3F: PF18357ECOD (1.6)
H [auth D]PF01325e1u8rD2 A: alpha arraysX: HTHH: HTHT: wingedF: PF01325ECOD (1.6)
H [auth D]PF02742e1u8rD3 A: alpha duplicates or obligate multimersX: Iron-dependent repressor protein, dimerization domain (From Topology)H: Iron-dependent repressor protein, dimerization domain (From Topology)T: Iron-dependent repressor protein, dimerization domainF: PF02742ECOD (1.6)
I [auth G]PF18357e1u8rG1 A: beta barrelsX: SH3H: SH3T: SH3F: PF18357ECOD (1.6)
I [auth G]PF01325e1u8rG2 A: alpha arraysX: HTHH: HTHT: wingedF: PF01325ECOD (1.6)
I [auth G]PF02742e1u8rG3 A: alpha duplicates or obligate multimersX: Iron-dependent repressor protein, dimerization domain (From Topology)H: Iron-dependent repressor protein, dimerization domain (From Topology)T: Iron-dependent repressor protein, dimerization domainF: PF02742ECOD (1.6)
J [auth H]PF18357e1u8rH1 A: beta barrelsX: SH3H: SH3T: SH3F: PF18357ECOD (1.6)
J [auth H]PF01325e1u8rH2 A: alpha arraysX: HTHH: HTHT: wingedF: PF01325ECOD (1.6)
J [auth H]PF02742e1u8rH3 A: alpha duplicates or obligate multimersX: Iron-dependent repressor protein, dimerization domain (From Topology)H: Iron-dependent repressor protein, dimerization domain (From Topology)T: Iron-dependent repressor protein, dimerization domainF: PF02742ECOD (1.6)
K [auth I]PF18357e1u8rI1 A: beta barrelsX: SH3H: SH3T: SH3F: PF18357ECOD (1.6)
K [auth I]PF01325e1u8rI2 A: alpha arraysX: HTHH: HTHT: wingedF: PF01325ECOD (1.6)
K [auth I]PF02742e1u8rI3 A: alpha duplicates or obligate multimersX: Iron-dependent repressor protein, dimerization domain (From Topology)H: Iron-dependent repressor protein, dimerization domain (From Topology)T: Iron-dependent repressor protein, dimerization domainF: PF02742ECOD (1.6)
L [auth J]PF18357e1u8rJ1 A: beta barrelsX: SH3H: SH3T: SH3F: PF18357ECOD (1.6)
L [auth J]PF01325e1u8rJ2 A: alpha arraysX: HTHH: HTHT: wingedF: PF01325ECOD (1.6)
L [auth J]PF02742e1u8rJ3 A: alpha duplicates or obligate multimersX: Iron-dependent repressor protein, dimerization domain (From Topology)H: Iron-dependent repressor protein, dimerization domain (From Topology)T: Iron-dependent repressor protein, dimerization domainF: PF02742ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
E [auth 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 domainCATH (4.3.0)
E [auth A]1.10.60.10 Mainly Alpha Orthogonal Bundle Diphtheria Toxin Repressor domain 2CATH (4.3.0)
E [auth A]2.30.30.90 Mainly Beta Roll SH3 type barrels. Ferrous iron transport protein A (FeoA)CATH (4.3.0)
F [auth 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 domainCATH (4.3.0)
F [auth B]1.10.60.10 Mainly Alpha Orthogonal Bundle Diphtheria Toxin Repressor domain 2CATH (4.3.0)
F [auth B]2.30.30.90 Mainly Beta Roll SH3 type barrels. Ferrous iron transport protein A (FeoA)CATH (4.3.0)
G [auth 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 domainCATH (4.3.0)
G [auth C]1.10.60.10 Mainly Alpha Orthogonal Bundle Diphtheria Toxin Repressor domain 2CATH (4.3.0)
G [auth C]2.30.30.90 Mainly Beta Roll SH3 type barrels. Ferrous iron transport protein A (FeoA)CATH (4.3.0)
H [auth D]1.10.10.10 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domainCATH (4.3.0)
H [auth D]1.10.60.10 Mainly Alpha Orthogonal Bundle Diphtheria Toxin Repressor domain 2CATH (4.3.0)
H [auth D]2.30.30.90 Mainly Beta Roll SH3 type barrels. Ferrous iron transport protein A (FeoA)CATH (4.3.0)
I [auth G]1.10.10.10 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domainCATH (4.3.0)
I [auth G]1.10.60.10 Mainly Alpha Orthogonal Bundle Diphtheria Toxin Repressor domain 2CATH (4.3.0)
I [auth G]2.30.30.90 Mainly Beta Roll SH3 type barrels. Ferrous iron transport protein A (FeoA)CATH (4.3.0)
J [auth H]1.10.10.10 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domainCATH (4.3.0)
J [auth H]1.10.60.10 Mainly Alpha Orthogonal Bundle Diphtheria Toxin Repressor domain 2CATH (4.3.0)
J [auth H]2.30.30.90 Mainly Beta Roll SH3 type barrels. Ferrous iron transport protein A (FeoA)CATH (4.3.0)
K [auth I]1.10.10.10 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domainCATH (4.3.0)
K [auth I]1.10.60.10 Mainly Alpha Orthogonal Bundle Diphtheria Toxin Repressor domain 2CATH (4.3.0)
K [auth I]2.30.30.90 Mainly Beta Roll SH3 type barrels. Ferrous iron transport protein A (FeoA)CATH (4.3.0)
L [auth J]1.10.10.10 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domainCATH (4.3.0)
L [auth J]1.10.60.10 Mainly Alpha Orthogonal Bundle Diphtheria Toxin Repressor domain 2CATH (4.3.0)
L [auth J]2.30.30.90 Mainly Beta Roll SH3 type barrels. Ferrous iron transport protein A (FeoA)CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF18357Diphteria toxin repressor SH3 domain (DtxR)Diphteria toxin repressor SH3 domainThis is an SH3 domain which can be found in diphtheria toxin repressor (DtxR) proteins. DtxR) from Corynebacterium diphtheriae regulates the expression of the gene on corynebacteriophages that encodes diphtheria toxin (DT). Other genes regulated by D ...This is an SH3 domain which can be found in diphtheria toxin repressor (DtxR) proteins. DtxR) from Corynebacterium diphtheriae regulates the expression of the gene on corynebacteriophages that encodes diphtheria toxin (DT). Other genes regulated by DtxR include those that encode proteins involved in siderophore-mediated iron uptake [1].
Domain
PF02742Iron dependent repressor, metal binding and dimerisation domain (Fe_dep_repr_C)Iron dependent repressor, metal binding and dimerisation domainThis 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
PF01325Iron dependent repressor, N-terminal DNA binding domain (Fe_dep_repress)Iron dependent repressor, N-terminal DNA binding domainThis family includes the Diphtheria toxin repressor. DNA binding is through a helix-turn-helix motif.Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth E],
C [auth K]
mbtA operator DNA---
B [auth F],
D [auth L]
mbtB operator DNA---
Iron-dependent repressor ideR

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR036421Iron dependent repressor, metal binding and dimerisation domain superfamilyHomologous Superfamily
IPR022687DTXR-type HTH domainDomain
IPR001367Iron dependent repressor, metal binding and dimerisation domainDomain
IPR022689Iron dependent repressorFamily
IPR007167Ferrous iron transporter FeoA-like domainDomain
IPR036388Winged helix-like DNA-binding domain superfamilyHomologous Superfamily
IPR038157Ferrous iron transporter, core domainHomologous Superfamily
IPR008988Transcriptional repressor, C-terminalHomologous Superfamily
IPR036390Winged helix DNA-binding domain superfamilyHomologous Superfamily