Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
C [auth E]SCOP2B SuperfamilySARS coronavirus receptor-binding domain-like 8092467 3001706 SCOP2B (2022-06-29)
FSCOP2B SuperfamilySARS coronavirus receptor-binding domain-like 8092467 3001706 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyMetalloproteases (zincins), catalytic domain 8037105 3001975 SCOP2B (2022-06-29)
E [auth D]SCOP2B SuperfamilyMetalloproteases (zincins), catalytic domain 8037105 3001975 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
C [auth E]Spike_rec_binde6m17E1 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)
FSpike_rec_binde6m17F1 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)
ASNFe6m17A1 A: alpha complex topologyX: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)H: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)T: Sodium:neurotransmitter symporter family (SNF)-likeF: SNFECOD (1.6)
D [auth C]SNFe6m17C1 A: alpha complex topologyX: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)H: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)T: Sodium:neurotransmitter symporter family (SNF)-likeF: SNFECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
C [auth E],
F
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
A,
D [auth C]
PF00209Sodium:neurotransmitter symporter family (SNF)Sodium:neurotransmitter symporter family- Family
B,
E [auth D]
PF16959Renal amino acid transporter (Collectrin)Renal amino acid transporterCollectrin is a single-pass transmembrane protein that is homologous to the C-terminal region of human angiotensin-converting enzyme 2, ACE2, SwissProt:Q9BYF1, found in Peptidase_M2 Pfam:PF01401 [1]. Collectrin is critical for normal amino acid reabs ...Collectrin is a single-pass transmembrane protein that is homologous to the C-terminal region of human angiotensin-converting enzyme 2, ACE2, SwissProt:Q9BYF1, found in Peptidase_M2 Pfam:PF01401 [1]. Collectrin is critical for normal amino acid reabsorption in the kidney [2].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
C [auth E],
F
Spike protein S1
A,
D [auth C]
Sodium-dependent neutral amino acid transporter B(0)AT1
B,
E [auth D]
Angiotensin-converting enzyme 2

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
A,
D [auth C]
PharosQ695T7
B,
E [auth D]
PharosQ9BYF1