Annotations: 8Z27

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth a]	SCOP2B Superfamily	SARS coronavirus receptor-binding domain-like	8053548	3001706	SCOP2B (2022-06-29)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth a]	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
B [auth b]	Aminopeptidase N	protein binding binding virus receptor activity exogenous protein binding peptide binding peptidase activity alanyl aminopeptidase activity catalytic activity, acting on a protein aminopeptidase activity hydrolase activity exopeptidase activity catalytic activity cation binding transition metal ion binding protein binding binding virus receptor activity exogenous protein binding peptide binding peptidase activity alanyl aminopeptidase activity catalytic activity, acting on a protein aminopeptidase activity hydrolase activity exopeptidase activity catalytic activity cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding metallopeptidase activity metalloaminopeptidase activity metalloexopeptidase activity	catabolic process metabolic process cellular process peptide metabolic process peptide catabolic process developmental process cellular developmental process cell differentiation multicellular organismal process blood vessel morphogenesis tube development angiogenesis vasculature development circulatory system development catabolic process metabolic process cellular process peptide metabolic process peptide catabolic process developmental process cellular developmental process cell differentiation multicellular organismal process blood vessel morphogenesis tube development angiogenesis vasculature development circulatory system development anatomical structure morphogenesis multicellular organism development tube morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development blood vessel development system development proteolysis primary metabolic process protein metabolic process macromolecule metabolic process	cell periphery cellular anatomical structure plasma membrane membrane intracellular anatomical structure cytoplasm extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth a]	IPR002551	Spike glycoprotein S1, coronavirus	Domain
A [auth a]	IPR044874	Spike glycoprotein S2, coronavirus, heptad repeat 2	Domain
A [auth a]	IPR043614	Spike glycoprotein S2, coronavirus, C-terminal	Domain
A [auth a]	IPR044873	Spike glycoprotein S2, coronavirus, heptad repeat 1	Domain
A [auth a]	IPR043473	Spike glycoprotein S2 superfamily, coronavirus	Homologous Superfamily
A [auth a]	IPR042552	Spike glycoprotein, Alphacoronavirus	Family
A [auth a]	IPR043607	Coronavirus spike glycoprotein S1, C-terminal	Domain
A [auth a]	IPR002552	Spike glycoprotein S2, coronavirus	Domain
B [auth b]	IPR001930	Peptidase M1, alanine aminopeptidase/leukotriene A4 hydrolase	Family
B [auth b]	IPR027268	Peptidase M4/M1, CTD superfamily	Homologous Superfamily
B [auth b]	IPR034016	Aminopeptidase N-type	Family
B [auth b]	IPR014782	Peptidase M1, membrane alanine aminopeptidase	Domain
B [auth b]	IPR045357	Aminopeptidase N-like , N-terminal domain	Domain
B [auth b]	IPR042097	Aminopeptidase N-like , N-terminal domain superfamliy	Homologous Superfamily
B [auth b]	IPR024571	ERAP1-like C-terminal domain	Domain
B [auth b]	IPR050344	Peptidase M1 family aminopeptidases	Family

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.