8FCG

Cryo-EM structure of Chikungunya virus asymmetric unit

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF01589	Alphavirus E1 glycoprotein (Alpha_E1_glycop)	Alphavirus E1 glycoprotein	-	Family
E, F, G, H	PF00943	Alphavirus E2 glycoprotein (Alpha_E2_glycop)	Alphavirus E2 glycoprotein	-	Family
I, J, K, L	PF00944	Alphavirus core protein (Peptidase_S3)	Alphavirus core protein	Also known as coat protein C and capsid protein C. This makes the literature very confusing. Alphaviruses consist of a nucleoprotein core, a lipid membrane which envelopes the core, and glycoprotein spikes protruding from the lipid membrane.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	E1 glycoprotein	peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity structural molecule activity	viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host organic substance metabolic process organonitrogen compound metabolic process viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	cell periphery plasma membrane membrane cellular anatomical entity host cell plasma membrane host cellular component host cell part host cell membrane intracellular anatomical structure cytoplasm host intracellular part host cell cytoplasm host intracellular region virion component cell periphery plasma membrane membrane cellular anatomical entity host cell plasma membrane host cellular component host cell part host cell membrane intracellular anatomical structure cytoplasm host intracellular part host cell cytoplasm host intracellular region virion component virion membrane viral capsid icosahedral viral capsid T=4 icosahedral viral capsid
E, F, G, H	E2 glycoprotein	peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity structural molecule activity	viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host organic substance metabolic process organonitrogen compound metabolic process viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	cell periphery plasma membrane membrane cellular anatomical entity host cell plasma membrane host cellular component host cell part host cell membrane intracellular anatomical structure cytoplasm host intracellular part host cell cytoplasm host intracellular region virion component cell periphery plasma membrane membrane cellular anatomical entity host cell plasma membrane host cellular component host cell part host cell membrane intracellular anatomical structure cytoplasm host intracellular part host cell cytoplasm host intracellular region virion component virion membrane viral capsid icosahedral viral capsid T=4 icosahedral viral capsid
I, J, K, L	Capsid protein	peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity structural molecule activity	viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host organic substance metabolic process organonitrogen compound metabolic process viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	cell periphery plasma membrane membrane cellular anatomical entity host cell plasma membrane host cellular component host cell part host cell membrane intracellular anatomical structure cytoplasm host intracellular part host cell cytoplasm host intracellular region virion component cell periphery plasma membrane membrane cellular anatomical entity host cell plasma membrane host cellular component host cell part host cell membrane intracellular anatomical structure cytoplasm host intracellular part host cell cytoplasm host intracellular region virion component virion membrane viral capsid icosahedral viral capsid T=4 icosahedral viral capsid

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR002533	Alphavirus E3 spike glycoprotein	Domain
A, B, C, D	IPR038055	Flaviviral glycoprotein E, dimerisation domain	Homologous Superfamily
A, B, C, D	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A, B, C, D	IPR042304	Alphavirus E2 glycoprotein, domain A	Homologous Superfamily
A, B, C, D	IPR036253	Flavivirus glycoprotein, central and dimerisation domain superfamily	Homologous Superfamily
A, B, C, D	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A, B, C, D	IPR042305	Alphavirus E2 glycoprotein, domain B	Homologous Superfamily
A, B, C, D	IPR042306	Alphavirus E2 glycoprotein, domain C	Homologous Superfamily
A, B, C, D	IPR000936	Alphavirus E2 glycoprotein	Family
A, B, C, D	IPR000930	Peptidase S3, togavirin	Domain
A, B, C, D	IPR002548	Alphavirus E1 glycoprotein	Domain
A, B, C, D	IPR000336	Flavivirus/Alphavirus glycoprotein, immunoglobulin-like domain superfamily	Homologous Superfamily
A, B, C, D	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
E, F, G, H	IPR002533	Alphavirus E3 spike glycoprotein	Domain
E, F, G, H	IPR038055	Flaviviral glycoprotein E, dimerisation domain	Homologous Superfamily
E, F, G, H	IPR014756	Immunoglobulin E-set	Homologous Superfamily
E, F, G, H	IPR042304	Alphavirus E2 glycoprotein, domain A	Homologous Superfamily
E, F, G, H	IPR036253	Flavivirus glycoprotein, central and dimerisation domain superfamily	Homologous Superfamily
E, F, G, H	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
E, F, G, H	IPR042305	Alphavirus E2 glycoprotein, domain B	Homologous Superfamily
E, F, G, H	IPR042306	Alphavirus E2 glycoprotein, domain C	Homologous Superfamily
E, F, G, H	IPR000936	Alphavirus E2 glycoprotein	Family
E, F, G, H	IPR000930	Peptidase S3, togavirin	Domain
E, F, G, H	IPR002548	Alphavirus E1 glycoprotein	Domain
E, F, G, H	IPR000336	Flavivirus/Alphavirus glycoprotein, immunoglobulin-like domain superfamily	Homologous Superfamily
E, F, G, H	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
I, J, K, L	IPR002533	Alphavirus E3 spike glycoprotein	Domain
I, J, K, L	IPR038055	Flaviviral glycoprotein E, dimerisation domain	Homologous Superfamily
I, J, K, L	IPR014756	Immunoglobulin E-set	Homologous Superfamily
I, J, K, L	IPR042304	Alphavirus E2 glycoprotein, domain A	Homologous Superfamily
I, J, K, L	IPR036253	Flavivirus glycoprotein, central and dimerisation domain superfamily	Homologous Superfamily
I, J, K, L	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
I, J, K, L	IPR042305	Alphavirus E2 glycoprotein, domain B	Homologous Superfamily
I, J, K, L	IPR042306	Alphavirus E2 glycoprotein, domain C	Homologous Superfamily
I, J, K, L	IPR000936	Alphavirus E2 glycoprotein	Family
I, J, K, L	IPR000930	Peptidase S3, togavirin	Domain
I, J, K, L	IPR002548	Alphavirus E1 glycoprotein	Domain
I, J, K, L	IPR000336	Flavivirus/Alphavirus glycoprotein, immunoglobulin-like domain superfamily	Homologous Superfamily
I, J, K, L	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily