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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
A [auth B]d7jx3b1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
A [auth B]d7jx3b2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
C [auth D]d7jx3d2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
C [auth D]d7jx3d1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
D [auth C]d7jx3c_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
E [auth L]d7jx3l2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
E [auth L]d7jx3l1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
F [auth H]d7jx3h_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
G [auth R]d7jx3r_ Alpha and beta proteins (a+b) SARS receptor-binding domain-like SARS receptor-binding domain-like SARS receptor-binding domain-like Spike protein S1 2019-nCoV (Severe acute respiratory syndrome coronavirus 2 ) [TaxId: 2697049 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
G [auth R]SCOP2B SuperfamilySARS coronavirus receptor-binding domain-like8092467 3001706 SCOP2B (2021-05-27)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth B]PF07654e7jx3B1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07654ECOD (1.6)
A [auth B]PF07686e7jx3B2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07686ECOD (1.6)
B [auth A]PF07654e7jx3A2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07654ECOD (1.6)
B [auth A]PF07686e7jx3A1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07686ECOD (1.6)
C [auth D]PF07654e7jx3D1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07654ECOD (1.6)
C [auth D]PF07686e7jx3D2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07686ECOD (1.6)
D [auth C]PF07654e7jx3C1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07654ECOD (1.6)
D [auth C]PF07686e7jx3C2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07686ECOD (1.6)
E [auth L]PF07654e7jx3L1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07654ECOD (1.6)
E [auth L]PF07686e7jx3L2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07686ECOD (1.6)
F [auth H]PF07654e7jx3H2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07654ECOD (1.6)
F [auth H]PF07686e7jx3H1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: PF07686ECOD (1.6)
G [auth R]PF09408e7jx3R1 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: PF09408ECOD (1.6)

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
A [auth B]mAb S2H14, anti-SARS-CoV-2, neutralizing L-KAPPA Homo sapiens (human) IGKV3-20*01, IGKJ4*01, IGKJ4*02, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202428-0)
B [auth A]mAb S2H14, anti-SARS-CoV-2, neutralizing VH-CH1 Homo sapiens (human) IGHV1-18*01, IGHV1-18*04, IGHJ1*01, IGHJ3*01, IGHJ5*01, IGHJ5*02, IGHJ3*02, IGHJ2*01, IGHJ4*01, IGHJ6-2*01, IGHJ6-3*01, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05, IGHG1*12, IGHG1*14, IGHG1*13, IGHG1*09, IGHG1*10, IGHG1*07, IGHG1*11 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202428-0)
C [auth D]mAb S304, anti-SARS-CoV-2, neutralizing L-LAMBDA Homo sapiens (human) IGLV6-57*01, IGLJ2*01, IGLJ3*02, IGLJ1*01, IGLJ3*01, IGLC2*01, IGLC2*02, IGLC3*04 V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA IG FAB-GAMMA-1_LAMBDA IMGT (202428-0)
D [auth C]mAb S304, anti-SARS-CoV-2, neutralizing VH-CH1 Homo sapiens (human) IGHV3-15*01, IGHV3-15*05, IGHJ4*01, IGHJ4*02, IGHJ4*03, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05, IGHG1*12, IGHG1*14, IGHG1*13, IGHG1*09, IGHG1*10, IGHG1*07, IGHG1*11 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_LAMBDA IMGT (202428-0)
E [auth L]mAb S309, anti-SARS-CoV-2, neutralizing L-KAPPA Homo sapiens (human) IGKV1-39*01, IGKV1D-39*01, IGKJ3*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202428-0)
F [auth H]mAb S309, anti-SARS-CoV-2, neutralizing VH-CH1 Homo sapiens (human) IGHV3-13*01, IGHV3-13*04, TRAJ60*01, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05, IGHG1*12, IGHG1*14, IGHG1*13, IGHG1*09, IGHG1*10, IGHG1*07, IGHG1*11 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202428-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A [auth B]Light ChainIGKV3 Kappaspike glycoproteinSAbDab (2024-07-12)
B [auth A]Heavy ChainIGHV1 -spike glycoproteinSAbDab (2024-07-12)
C [auth D]Light ChainIGLV6 Lambdaspike glycoproteinSAbDab (2024-07-12)
D [auth C]Heavy ChainIGHV3 -spike glycoproteinSAbDab (2024-07-12)
E [auth L]Light ChainIGKV1 Kappaspike glycoproteinSAbDab (2024-07-12)
F [auth H]Heavy ChainIGHV3 -spike glycoproteinSAbDab (2024-07-12)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

ChainNameTargetProvenance Source
A [auth B] Sotrovimab SARS-CoV-2 Spike RBDTherapeutic SAbDab (2024-07-12)
B [auth A] Beludavimab SARS-CoV-2 Spike RBDTherapeutic SAbDab (2024-07-12)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
G [auth R]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 ...This 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 translated as a large polypeptide that is subsequently cleaved to the distal S1, responsible for receptor binding, and the membrane-anchored S2 responsible for membrane fusion [1]. The coronavirus (SARS-CoV) S1 subunit is composed of two distinct domains: an N-terminal domain (S1 NTD) and a receptor-binding domain (S1 RBD) also referred to as the S1 CTD or domain B. Each of these domains have been implicated in binding to host receptors. However, most coronaviruses are not known to utilise both the S1 NTD and S1 RBD for viral entry [2]. SARS-CoV makes use of its S1 RBD to bind to the human angiotensin-converting enzyme 2 (ACE2) as its host receptor [3,4].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth B]Light chain of Fab domain of monoclonal antibody S309---
B [auth A]Heavy chain of Fab domain of monoclonal antibody S309---
C [auth D]Light chain of Fab domain of monoclonal antibody S2H14---
D [auth C]Heavy chain of Fab domain of monoclonal antibody S2H14---
E [auth L]Light chain of Fab domain of monoclonal antibody S304---
F [auth H]Heavy chain of Fab domain of monoclonal antibody S304---
G [auth R]Spike protein S1