Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyPorins 8042029 3000224 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyColicin E3 receptor domain 8037679 3001221 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ATonB_dep_Rece1ujwA1 A: beta barrelsX: Outer membrane meander beta-barrelsH: PorinsT: Ligand-gated protein channelF: TonB_dep_RecECOD (1.6)
APluge1ujwA2 A: a+b complex topologyX: N0 domain in phage tail proteins and secretins-likeH: TonB-dependent receptor plug domain (From Topology)T: TonB-dependent receptor plug domainF: PlugECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.170.130.10 Mainly Beta Beta Complex Ferric Hydroxamate Uptake Protein Chain A, domain 1CATH (4.3.0)
A2.40.170.20 Mainly Beta Beta Barrel Maltoporin Chain ACATH (4.3.0)
B1.10.287.620 Mainly Alpha Orthogonal Bundle Helix Hairpins Helix HairpinsCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00593TonB dependent receptor-like, beta-barrel (TonB_dep_Rec_b-barrel)TonB dependent receptor-like, beta-barrelThis entry represents the beta-barrel domain of TonB-dependent receptors, such as BtuB, CirA, FatA, FcuT, FecA, FepA, among others [1].Domain
PF07715TonB-dependent Receptor Plug Domain (Plug)TonB-dependent Receptor Plug DomainThe Plug domain has been shown to be an independently folding subunit of the TonB-dependent receptors ([1]). It acts as the channel gate, blocking the pore until the channel is bound by ligand. At this point it under goes conformational changes opens ...The Plug domain has been shown to be an independently folding subunit of the TonB-dependent receptors ([1]). It acts as the channel gate, blocking the pore until the channel is bound by ligand. At this point it under goes conformational changes opens the channel.
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Vitamin B12 receptor
Colicin E3