Annotations: 7WPO

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Spike_rec_bind	e7wpoB1	A: a+b three layers	X: Coronavirus spike protein receptor-binding domain (From Homology)	H: Coronavirus spike protein receptor-binding domain	T: Beta-coronavirus spike protein receptor-binding domain	F: Spike_rec_bind	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF16959	Renal amino acid transporter (Collectrin)	Renal amino acid transporter	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 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
A	PF01401	Angiotensin-converting enzyme (Peptidase_M2)	Angiotensin-converting enzyme	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Angiotensin-converting enzyme	peptidase activity catalytic activity, acting on a protein metallopeptidase activity hydrolase activity catalytic activity peptidyl-dipeptidase activity exopeptidase activity carboxypeptidase activity cation binding ion binding binding metal ion binding small molecule binding	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection intracellular anatomical structure cytoplasm cell periphery apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection intracellular anatomical structure cytoplasm cell periphery apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane extracellular region extracellular space
B	Spike glycoprotein	-	viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell virion attachment to host cell biological process involved in interspecies interaction between organisms receptor-mediated virion attachment to host cell adhesion of symbiont to host cell viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction membrane organization cellular component organization membrane fusion viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell virion attachment to host cell biological process involved in interspecies interaction between organisms receptor-mediated virion attachment to host cell adhesion of symbiont to host cell viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction membrane organization cellular component organization membrane fusion fusion of virus membrane with host plasma membrane cellular process cellular component organization or biogenesis symbiont entry into host cell symbiont entry into host endocytosis involved in viral entry into host cell	cellular anatomical structure membrane virion component virion membrane host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane other organism part host cell cytoplasm part host intracellular organelle host cell endoplasmic reticulum-Golgi intermediate compartment membrane host cell endoplasmic reticulum-Golgi intermediate compartment host cell cytoplasm cellular anatomical structure membrane virion component virion membrane host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane other organism part host cell cytoplasm part host intracellular organelle host cell endoplasmic reticulum-Golgi intermediate compartment membrane host cell endoplasmic reticulum-Golgi intermediate compartment host cell cytoplasm host cell part host intracellular region viral membrane viral envelope host cell plasma membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR031588	Collectrin domain	Domain
A	IPR001548	Peptidase M2, peptidyl-dipeptidase A	Family
B	IPR018548	Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus	Domain
B	IPR032500	Spike glycoprotein S1, N-terminal domain, betacoronavirus-like	Domain
B	IPR042578	Spike glycoprotein, betacoronavirus	Family
B	IPR036326	Spike S1 subunit, receptor binding domain superfamily, betacoronavirus	Homologous Superfamily
B	IPR043002	Spike glycoprotein, N-terminal domain superfamily	Homologous Superfamily
B	IPR044874	Spike glycoprotein S2, coronavirus, heptad repeat 2	Domain
B	IPR044364	Spike (S) protein S1 subunit, receptor-binding domain, HKU5-like	Domain
B	IPR044337	Spike (S) protein S1 subunit, N-terminal domain, MERS-CoV-like	Domain
B	IPR043614	Spike glycoprotein S2, coronavirus, C-terminal	Domain
B	IPR044873	Spike glycoprotein S2, coronavirus, heptad repeat 1	Domain
B	IPR043473	Spike glycoprotein S2 superfamily, coronavirus	Homologous Superfamily
B	IPR002552	Spike glycoprotein S2, coronavirus	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.