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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
A [auth B]d7m7wb1 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]d7m7wb2 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]d7m7wl1 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]d7m7wl2 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)
B [auth A]d7m7wa_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
F [auth H]d7m7wh_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
D [auth C]d7m7wc_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
H [auth E]d7m7we_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
J [auth R]d7m7wr_ 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, SARS-CoV-2 (Severe acute respiratory syndrome coronavirus 2 ) [TaxId: 2697049 ], SCOPe (2.08)
I [auth S]d7m7ws_ 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, SARS-CoV-2 (Severe acute respiratory syndrome coronavirus 2 ) [TaxId: 2697049 ], SCOPe (2.08)
C [auth D]d7m7wd2 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]d7m7wd1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
G [auth F]d7m7wf2 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)
G [auth F]d7m7wf1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth B]C1-sete7m7wB2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-setECOD (1.6)
A [auth B]V-set_3e7m7wB1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_3ECOD (1.6)
E [auth L]C1-sete7m7wL1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-setECOD (1.6)
E [auth L]V-set_3e7m7wL2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_3ECOD (1.6)
B [auth A]C1-set_1e7m7wA1 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 A]V-set_12e7m7wA2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_12ECOD (1.6)
F [auth H]C1-set_1e7m7wH1 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 H]V-set_12e7m7wH2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_12ECOD (1.6)
D [auth C]V-set_8e7m7wC1 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 C]C1-set_1e7m7wC2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_1ECOD (1.6)
H [auth E]V-set_8e7m7wE2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_8ECOD (1.6)
H [auth E]C1-set_1e7m7wE1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_1ECOD (1.6)
J [auth R]Spike_rec_binde7m7wR1 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)
I [auth S]Spike_rec_binde7m7wS1 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)
C [auth D]C1-sete7m7wD2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-setECOD (1.6)
C [auth D]V-set_3e7m7wD1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_3ECOD (1.6)
G [auth F]C1-sete7m7wF1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-setECOD (1.6)
G [auth F]V-set_3e7m7wF2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_3ECOD (1.6)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A [auth B],
E [auth L]
Light ChainIGLV1 Lambdaspike protein s1SAbDab (2024-10-25)
B [auth A],
F [auth H]
Heavy ChainIGHV1 -spike protein s1SAbDab (2024-10-25)
D [auth C],
H [auth E]
Heavy ChainIGHV5 -spike protein s1SAbDab (2024-10-25)
C [auth D],
G [auth F]
Light ChainIGLV2 Lambdaspike protein s1SAbDab (2024-10-25)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
I [auth S],
J [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],
E [auth L]
Monoclonal antibody S2X259 Fab light chain---
B [auth A],
F [auth H]
Monoclonal antibody S2X259 Fab heavy chain---
D [auth C],
H [auth E]
Monoclonal antibody S2H97 Fab heavy chain---
I [auth S],
J [auth R]
Spike protein S1
C [auth D],
G [auth F]
Monoclonal antibody S2H97 Fab light chain---