Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
C [auth A]SCOP2B SuperfamilyCoronavirus S1 glycoprotein, domain C-like 8092661 3002615 SCOP2B (2022-06-29)
C [auth A]SCOP2B SuperfamilySARS coronavirus receptor-binding domain-like 8092467 3001706 SCOP2B (2022-06-29)
C [auth A]SCOP2B SuperfamilyConcanavalin A-like lectins/glucanases 8092469 3000120 SCOP2B (2022-06-29)
E [auth B]SCOP2B SuperfamilyConcanavalin A-like lectins/glucanases 8092469 3000120 SCOP2B (2022-06-29)
E [auth B]SCOP2B SuperfamilyCoronavirus S1 glycoprotein, domain C-like 8092661 3002615 SCOP2B (2022-06-29)
E [auth B]SCOP2B 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)
A [auth H]V-set_8e7a5sH1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_8ECOD (1.6)
A [auth H]C1-set_1e7a5sH2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_1ECOD (1.6)
F [auth I]V-set_8e7a5sI1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_8ECOD (1.6)
F [auth I]C1-set_1e7a5sI2 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 L]C1-set_4e7a5sL1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_4ECOD (1.6)
B [auth L]V-sete7a5sL2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-setECOD (1.6)
D [auth M]C1-set_4e7a5sM2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_4ECOD (1.6)
D [auth M]V-sete7a5sM1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-setECOD (1.6)
C [auth A]Spike_NTDe7a5sA1 A: beta sandwichesX: jelly-rollH: Concanavalin A-likeT: Concanavalin A-like lectins/glucanasesF: Spike_NTDECOD (1.6)
C [auth A]Spike_rec_bind_1e7a5sA3 A: beta complex topologyX: Beta domain of coronavirus spike glycoprotein (From Topology)H: Beta domain of coronavirus spike glycoprotein (From Topology)T: Beta domain of coronavirus spike glycoproteinF: Spike_rec_bind_1ECOD (1.6)
C [auth A]Spike_rec_binde7a5sA2 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)
E [auth B]Spike_NTDe7a5sB1 A: beta sandwichesX: jelly-rollH: Concanavalin A-likeT: Concanavalin A-like lectins/glucanasesF: Spike_NTDECOD (1.6)
E [auth B]Spike_rec_bind_1e7a5sB3 A: beta complex topologyX: Beta domain of coronavirus spike glycoprotein (From Topology)H: Beta domain of coronavirus spike glycoprotein (From Topology)T: Beta domain of coronavirus spike glycoproteinF: Spike_rec_bind_1ECOD (1.6)
E [auth B]Spike_rec_binde7a5sB2 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)

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
A [auth H],
F [auth I]
CR3022 Fab, anti-SARS-CoV-2 S RBD, neutralizing VH-CH1 Homo sapiens (human) IGHV5-51*01, IGHV5-51*03, IGHJ6*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 (202442-0)
B [auth L],
D [auth M]
CR3022 Fab, anti-SARS-CoV-2 S RBD, neutralizing L-KAPPA Homo sapiens (human) IGKV4-1*01, IGKJ1*01, IGKJ4*01, IGKJ2*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202442-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A [auth H],
F [auth I]
Heavy ChainIGHV5 -spike glycoproteinSAbDab (2024-10-25)
B [auth L],
D [auth M]
Light ChainIGKV4 Kappaspike glycoproteinSAbDab (2024-10-25)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
C [auth A],
E [auth B]
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
C [auth A],
E [auth B]
PF19209Coronavirus spike glycoprotein S1, C-terminal (CoV_S1_C)Coronavirus spike glycoprotein S1, C-terminalThis entry represents a domain found at the C-terminus of the Coronavirus S1 protein. It is found across a range of alpha, beta and gamma coronaviruses. This small all beta stranded domain is known as subdomain 2 in the structure of the porcine epide ...This entry represents a domain found at the C-terminus of the Coronavirus S1 protein. It is found across a range of alpha, beta and gamma coronaviruses. This small all beta stranded domain is known as subdomain 2 in the structure of the porcine epidemic diarrhea virus spike protein [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth H],
F [auth I]
CR3022 Fab Heavy Chain---
B [auth L],
D [auth M]
CR3022 Fab Light Chain---
C [auth A],
E [auth B]
Spike glycoprotein