Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilySARS coronavirus receptor-binding domain-like 8092467 3001706 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ASpike_rec_binde7f3qA1 A: a+b three layersX: Coronavirus spike protein receptor-binding domain (From Homology)H: Coronavirus spike protein receptor-binding domainT: Beta-coronavirus spike protein receptor-binding domainF: Spike_rec_bindECOD (1.6)
B [auth H]C1-set_1e7f3qH1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_1ECOD (1.6)
B [auth H]V-set_12e7f3qH2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_12ECOD (1.6)
C [auth L]C1-sete7f3qL2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-setECOD (1.6)
C [auth L]V-set_3e7f3qL1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_3ECOD (1.6)
D [auth C]C1-set_1e7f3qC2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_1ECOD (1.6)
D [auth C]V-set_12e7f3qC1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_12ECOD (1.6)
E [auth B]C1-set_4e7f3qB1 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 B]V-sete7f3qB2 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)
B [auth H]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)
C [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)
D [auth C]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)
E [auth B]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B [auth H]Heavy ChainIGHV3 -spike glycoproteinSAbDab (2025-01-24)
C [auth L]Light ChainIGLV3 Lambdaspike glycoproteinSAbDab (2025-01-24)
D [auth C]Heavy ChainIGHV3 -spike glycoproteinSAbDab (2025-01-24)
E [auth B]Light ChainIGKV1 Kappaspike glycoproteinSAbDab (2025-01-24)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF09408Betacoronavirus spike glycoprotein S1, receptor binding (bCoV_S1_RBD)Betacoronavirus spike glycoprotein S1, receptor bindingThis entry represents the receptor binding domain (S1 RBD) of the betacoronavirus spike glycoprotein. The spike glycoprotein is arranged in trimers on the surface of the viral membrane and is essential for viral entry. The spike protein is transla ...Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Spike glycoprotein
B [auth H]Heavy chain of A34-2 Fab---
C [auth L]Light chain of A34-2 Fab---
D [auth C]Heavy chain of A5-10 Fab---
E [auth B]Light chain of A5-10 Fab---