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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad2ghwa_ Alpha and beta proteins (a+b) SARS receptor-binding domain-like SARS receptor-binding domain-like SARS receptor-binding domain-like Spike protein S1 (Severe acute respiratory syndrome-related coronavirus ) [TaxId: 694009 ], SCOPe (2.08)
Cd2ghwc_ Alpha and beta proteins (a+b) SARS receptor-binding domain-like SARS receptor-binding domain-like SARS receptor-binding domain-like Spike protein S1 (Severe acute respiratory syndrome-related coronavirus ) [TaxId: 694009 ], SCOPe (2.08)
Bd2ghwb2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) Immunoglobulin heavy chain variable domain, VH human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd2ghwb1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) Immunoglobulin light chain kappa variable domain, VL-kappa human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Dd2ghwd2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) Immunoglobulin heavy chain variable domain, VH human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Dd2ghwd1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) Immunoglobulin light chain kappa variable domain, VL-kappa human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Dd2ghwd3 Artifacts Tags Tags Tags C-terminal Tags human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilySARS coronavirus receptor-binding domain-like 8041894 3001706 SCOP2B (2022-06-29)
CSCOP2B SuperfamilySARS coronavirus receptor-binding domain-like 8041894 3001706 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ASpike_rec_binde2ghwA1 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)
CSpike_rec_binde2ghwC1 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)
BV-set_8e2ghwB2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_8ECOD (1.6)
BV-sete2ghwB1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-setECOD (1.6)
DV-set_8e2ghwD2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_8ECOD (1.6)
DV-sete2ghwD1 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

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
B, D
scFv 80R, anti-SARS-CoV spike S RBD, neutralizing, in complex SCFV-HEAVY-KAPPA Homo sapiens (human) IGHV3-30*01, IGHV3-30*04, IGHV3-30*07, IGHV3-30*11, IGHV3-30*14, IGHV3-30*16, IGHV3-30*17, IGHV3-30-3*01, IGHV3-30-3*03, IGHJ4*01, IGHJ4*02, IGHJ4*03, IGKV3-11*01, IGKJ1*01 V-DOMAIN VH, V-DOMAIN V-KAPPA IG SCFV-HEAVY-KAPPA IMGT (202443-0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, C
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
B, D
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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, C
Spike glycoprotein
B, D
anti-sars scFv antibody, 80R