Annotations: 3MUU

Crystal structure of the Sindbis virus E2-E1 heterodimer at low pH

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F	FAD_binding_4	e3muuF1	A: beta barrels	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: FAD_binding_4	ECOD (v294.2)
F		e3muuF4	A: beta barrels	X: Lipocalins/Streptavidin	H: RIFT-related	T: acid protease	F:	ECOD (v294.2)
E	FAD_binding_4	e3muuE1	A: beta barrels	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: FAD_binding_4	ECOD (v294.2)
E		e3muuE4	A: beta barrels	X: Lipocalins/Streptavidin	H: RIFT-related	T: acid protease	F:	ECOD (v294.2)
D	FAD_binding_4	e3muuD1	A: beta barrels	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: FAD_binding_4	ECOD (v294.2)
D		e3muuD4	A: beta barrels	X: Lipocalins/Streptavidin	H: RIFT-related	T: acid protease	F:	ECOD (v294.2)
C	FAD_binding_4	e3muuC1	A: beta barrels	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: FAD_binding_4	ECOD (v294.2)
C		e3muuC4	A: beta barrels	X: Lipocalins/Streptavidin	H: RIFT-related	T: acid protease	F:	ECOD (v294.2)
B	FAD_binding_4	e3muuB1	A: beta barrels	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: FAD_binding_4	ECOD (v294.2)
B		e3muuB4	A: beta barrels	X: Lipocalins/Streptavidin	H: RIFT-related	T: acid protease	F:	ECOD (v294.2)
A	Semialdhyde_dhC	e3muuA2	A: beta barrels	X: Lipocalins/Streptavidin	H: Fibronectin type I module-like	T: Fibronectin type I module	F: Semialdhyde_dhC	ECOD (v294.2)
A		e3muuA1	A: beta barrels	X: Lipocalins/Streptavidin	H: RIFT-related	T: acid protease	F:	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F	2.60.40.3200	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, A domain	CATH (4.3.0)
F	2.60.40.2400	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, domain C	CATH (4.3.0)
F	2.60.40.350	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
E	2.60.40.3200	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, A domain	CATH (4.3.0)
E	2.60.40.2400	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, domain C	CATH (4.3.0)
E	2.60.40.350	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
D	2.60.40.3200	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, A domain	CATH (4.3.0)
D	2.60.40.2400	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, domain C	CATH (4.3.0)
D	2.60.40.350	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
C	2.60.40.3200	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, A domain	CATH (4.3.0)
C	2.60.40.2400	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, domain C	CATH (4.3.0)
C	2.60.40.350	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
B	2.60.40.3200	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, A domain	CATH (4.3.0)
B	2.60.40.2400	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, domain C	CATH (4.3.0)
B	2.60.40.350	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
A	2.60.40.3200	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, A domain	CATH (4.3.0)
A	2.60.40.2400	Mainly Beta	Sandwich	Immunoglobulin-like	Alphavirus E2 glycoprotein, domain C	CATH (4.3.0)
A	2.60.40.350	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	PF00943	Alphavirus E2 glycoprotein (Alpha_E2_glycop)	Alphavirus E2 glycoprotein	-	Family
A, B, C, D, E A, B, C, D, E, F	PF01589	Alphavirus E1 glycoprotein (Alpha_E1_glycop)	Alphavirus E1 glycoprotein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	Structural polyprotein	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 RNA binding binding nucleic acid binding protein binding ubiquitin-like protein ligase binding enzyme binding 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 RNA binding binding nucleic acid binding protein binding ubiquitin-like protein ligase binding enzyme binding passive transmembrane transporter activity channel activity transporter activity transmembrane transporter activity structural molecule activity	viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell membrane organization cellular component organization membrane fusion cellular process cellular component organization or biogenesis symbiont-mediated suppression of host signal transduction pathway symbiont-mediated perturbation of host cellular process biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host process symbiont-mediated suppression of host toll-like receptor signaling pathway symbiont-mediated perturbation of host signal transduction pathway viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell membrane organization cellular component organization membrane fusion cellular process cellular component organization or biogenesis symbiont-mediated suppression of host signal transduction pathway symbiont-mediated perturbation of host cellular process biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host process symbiont-mediated suppression of host toll-like receptor signaling pathway symbiont-mediated perturbation of host signal transduction pathway modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction import into cell receptor-mediated endocytosis of virus by host cell transport viral life cycle establishment of localization vesicle-mediated transport localization symbiont entry into host cell clathrin-dependent endocytosis symbiont entry into host clathrin-dependent endocytosis of virus by host cell receptor-mediated endocytosis endocytosis endocytosis involved in viral entry into host cell viral gene expression viral translational frameshifting viral translation transmembrane transport monoatomic ion transmembrane transport monoatomic ion transport virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process receptor-mediated virion attachment to host cell entry receptor-mediated virion attachment to host cell	host intracellular membrane-bounded organelle host cellular component host intracellular part host cell endoplasmic reticulum other organism part host cell cytoplasm part host intracellular organelle cellular anatomical structure host cell cytoplasm host cell part host intracellular region viral capsid icosahedral viral capsid virion component host intracellular membrane-bounded organelle host cellular component host intracellular part host cell endoplasmic reticulum other organism part host cell cytoplasm part host intracellular organelle cellular anatomical structure host cell cytoplasm host cell part host intracellular region viral capsid icosahedral viral capsid virion component icosahedral viral capsid, spike host cell plasma membrane host cell membrane virion membrane T=4 icosahedral viral capsid host cell Golgi apparatus host cell nucleus viral membrane viral envelope

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR002533	Alphavirus E3 spike glycoprotein	Domain
A, B, C, D, E A, B, C, D, E, F	IPR038055	Flaviviral glycoprotein E, dimerisation domain	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR042304	Alphavirus E2 glycoprotein, domain A	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR036253	Flavivirus glycoprotein, central and dimerisation domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR043504	Peptidase_S1_PA_chymotrypsin	Unknown
A, B, C, D, E A, B, C, D, E, F	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR042305	Alphavirus E2 glycoprotein, domain B	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR042306	Alphavirus E2 glycoprotein, domain C	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR000936	Alphavirus E2 glycoprotein	Family
A, B, C, D, E A, B, C, D, E, F	IPR000930	Peptidase S3, togavirin	Domain
A, B, C, D, E A, B, C, D, E, F	IPR002548	Alphavirus E1 glycoprotein	Domain
A, B, C, D, E A, B, C, D, E, F	IPR000336	Flavivirus/Alphavirus glycoprotein, immunoglobulin-like domain superfamily	Homologous Superfamily

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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.