Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyTbpB N-lobe and C-lobe beta-barrel domains-like8052230 3002098 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyTbpB N-lobe and C-lobe beta-barrel domains-like8052230 3002098 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ATbpB_B_De5o1rA1 A: beta barrelsX: Outer membrane meander beta-barrelsH: OMPA-like (From Topology)T: OMPA-likeF: TbpB_B_DECOD (1.6)
BTbpB_B_De5o1rB1 A: beta barrelsX: Outer membrane meander beta-barrelsH: OMPA-like (From Topology)T: OMPA-likeF: TbpB_B_DECOD (1.6)
D [auth I]V-set_8e5o1rI1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_8ECOD (1.6)
D [auth I]C1-set_1e5o1rI2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_1ECOD (1.6)
C [auth H]V-set_8e5o1rH2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_8ECOD (1.6)
C [auth H]C1-set_1e5o1rH1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_1ECOD (1.6)
E [auth L]C1-set_4e5o1rL2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_4ECOD (1.6)
E [auth L]V-sete5o1rL1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-setECOD (1.6)
F [auth M]C1-set_4e5o1rM1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_4ECOD (1.6)
F [auth M]V-sete5o1rM2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-setECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.40.160.90 Mainly Beta Beta Barrel Porin CATH (utative)
B2.40.160.90 Mainly Beta Beta Barrel Porin CATH (utative)
D [auth I]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)
C [auth H]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)
E [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
F [auth M]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
C [auth H],
D [auth I]
Fab 5H2 VH-CH1 Homo sapiens (human) IGHV4-61*01, IGHJ4*01, IGHJ5*01, IGHJ5*02, IGHJ4*02, IGHJ4*03, IGHG1*03 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202415-0)
E [auth L],
F [auth M]
Fab 5H2 L-KAPPA Homo sapiens (human) IGKV1-39*01, IGKV1D-39*01, IGKJ2*01, IGKJ2*02, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202415-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
C [auth H],
D [auth I]
Heavy ChainIGHV4 -gna2132SAbDab (2024-04-19)
E [auth L],
F [auth M]
Light ChainIGKV1 Kappagna2132SAbDab (2024-04-19)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF01298C-lobe and N-lobe beta barrels of Tf-binding protein B (TbpB_B_D)C-lobe and N-lobe beta barrels of Tf-binding protein BBacterial lipoproteins represent a large group of specialized membrane proteins that perform a variety of functions including maintenance and stabilization of the cell envelope, protein targeting and transit to the outer membrane, membrane biogenesis ...Bacterial lipoproteins represent a large group of specialized membrane proteins that perform a variety of functions including maintenance and stabilization of the cell envelope, protein targeting and transit to the outer membrane, membrane biogenesis, and cell adherence [1]. Pathogenic Gram-negative bacteria within the Neisseriaceae and Pasteurellaceae families rely on a specialized uptake system, characterized by an essential surface receptor complex that acquires iron from host transferrin (Tf) and transports the iron across the outer membrane. They have an iron uptake system composed of surface exposed lipoprotein, Tf-binding protein B (TbpB), and an integral outer-membrane protein, Tf-binding protein A (TbpA), that together function to extract iron from the host iron binding glycoprotein (Tf). TbpB is a bilobed (N and C lobe) lipid-anchored protein with each lobe consisting of an eight-stranded beta barrel flanked by a "handle" domain made up of four (N lobe) or eight (C lobe) beta strands [2]. TbpB extends from the outer membrane surface by virtue of an N-terminal peptide region that is anchored to the outer membrane by fatty acyl chains on the N-terminal cysteine and is involved in the initial capture of iron-loaded Tf [3]. This domain family is found in C and N lobe eight stranded beta barrel region of TbpB proteins. The eight-stranded barrel domains in N and C lobe draw comparisons to eight-stranded beta barrel outer-membrane protein W (OmpW). However, the barrel domains of TbpB have the hydrophobic residues line the inner surface of the beta barrels to create a stable hydrophobic core [2].
Domain
C [auth H],
D [auth I]
PF07686Immunoglobulin V-set domain (V-set)Immunoglobulin V-set domainThis domain is found in antibodies as well as neural protein P0 and CTL4 amongst others.Domain
C [auth H],
D [auth I]
PF07654Immunoglobulin C1-set domain (C1-set)Immunoglobulin C1-set domain- Domain
E [auth L],
F [auth M]
PF07686Immunoglobulin V-set domain (V-set)Immunoglobulin V-set domainThis domain is found in antibodies as well as neural protein P0 and CTL4 amongst others.Domain
E [auth L],
F [auth M]
PF07654Immunoglobulin C1-set domain (C1-set)Immunoglobulin C1-set domain- Domain