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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1u07a_ Alpha and beta proteins (a+b) TolA/TonB C-terminal domain TolA/TonB C-terminal domain TonB TonB (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)
Bd1u07b_ Alpha and beta proteins (a+b) TolA/TonB C-terminal domain TolA/TonB C-terminal domain TonB TonB (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyTonB 8030364 4003582 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyTolA/TonB C-terminal domain-like 8042743 3000464 SCOP2 (2022-06-29)
BSCOP2B SuperfamilyTolA/TonB C-terminal domain-like 8042743 3000464 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ATonB_Ce1u07A1 A: a+b two layersX: TolA/TonB C-terminal domainH: TolA/TonB C-terminal domain (From Topology)T: TolA/TonB C-terminal domainF: TonB_CECOD (1.6)
BTonB_Ce1u07B1 A: a+b two layersX: TolA/TonB C-terminal domainH: TolA/TonB C-terminal domain (From Topology)T: TolA/TonB C-terminal domainF: TonB_CECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.30.2420.10 Alpha Beta 2-Layer Sandwich TolA/TonB C-terminal domain TonBCATH (4.3.0)
B3.30.2420.10 Alpha Beta 2-Layer Sandwich TolA/TonB C-terminal domain TonBCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF03544Gram-negative bacterial TonB protein C-terminal (TonB_C)Gram-negative bacterial TonB protein C-terminalThe TonB_C domain is the well-characterised C-terminal region of the TonB receptor molecule. This protein is bound to an inner membrane-bound protein ExbB via a globular domain and has a flexible middle region that is likely to help in positioning th ...The TonB_C domain is the well-characterised C-terminal region of the TonB receptor molecule. This protein is bound to an inner membrane-bound protein ExbB via a globular domain and has a flexible middle region that is likely to help in positioning the C-terminal domain into the iron-transporter barrel in the outer membrane [1]. TonB_C interacts with the N-terminal TonB box of the outer membrane transporter that binds the Fe3+-siderophore complex. The barrel of the transporter, consisting of 22 beta-sheets and an inside plug, binds the iron complex in the barrel entrance [2].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
TonB protein