Annotations: 7YRF

Cryo-EM structure of compact CA16 empty particle in complex with a neutralizing antibody 8C4

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Positive stranded ssRNA viruses-like	8077437	3000918	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E [auth C]	His_Phos_2	e7yrfC1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: His_Phos_2	ECOD (v295.2)
D [auth F]	His_Phos_2	e7yrfF1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: His_Phos_2	ECOD (v295.2)
C [auth B]	RecA	e7yrfB01	A: alpha arrays	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: RecA	ECOD (v295.2)
B [auth E]	His_Phos_2	e7yrfE1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: His_Phos_2	ECOD (v295.2)
A	His_Phos_2	e7yrfA1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: His_Phos_2	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D [auth F]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth E]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D [auth F]	Heavy Chain	IGHV1	-	capsid protein vp3	SAbDab (2026-09-18)
B [auth E]	Light Chain	IGKV13	Kappa	capsid protein vp3	SAbDab (2026-09-18)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth C]	Capsid protein VP3	cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity RNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity RNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups RNA binding binding nucleic acid binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity, acting on acid anhydrides passive transmembrane transporter activity channel activity transporter activity transmembrane transporter activity nucleic acid conformation isomerase activity isomerase activity helicase activity RNA helicase activity ATP-dependent activity, acting on RNA macromolecular conformation isomerase activity ATP-dependent activity structural molecule activity cation binding transition metal ion binding zinc ion binding metal ion binding	nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process RNA metabolic process viral life cycle nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA biosynthetic process nucleic acid biosynthetic process nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process RNA metabolic process viral life cycle nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA biosynthetic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process symbiont-mediated suppression of host signal transduction pathway symbiont-mediated perturbation of host NF-kappaB cascade symbiont-mediated perturbation of host cellular process biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host process symbiont-mediated perturbation of host signal transduction pathway symbiont-mediated suppression of host NF-kappaB cascade modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction transmembrane transport localization transport monoatomic ion transmembrane transport monoatomic ion transport establishment of localization gene expression DNA-templated transcription symbiont-mediated disruption of host anatomical structure symbiont-mediated disruption of host cellular anatomical structure symbiont-mediated perturbation of host membrane symbiont genome entry into host cell via pore formation in plasma membrane symbiont entry into host cell symbiont entry into host disruption of anatomical structure in another organism virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host endocytosis involved in viral entry into host cell symbiont-mediated perturbation of host autophagy symbiont-mediated activation of host autophagy proteolysis protein metabolic process symbiont-mediated perturbation of host defense response symbiont-mediated suppression of host pathogen-associated molecular pattern receptor signaling pathway symbiont-mediated perturbation of host immune response symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity symbiont-mediated suppression of host immune response symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway symbiont-mediated suppression of host innate immune response symbiont-mediated perturbation of host innate immune response symbiont-mediated perturbation of host intracellular transport symbiont-mediated suppression of host mRNA export from nucleus symbiont-mediated suppression of host gene expression symbiont-mediated perturbation of host gene expression	host cellular component host intracellular part cellular anatomical structure host cell cytoplasm host cell part host intracellular region other organism part host intracellular membrane-bounded organelle host cell membrane host cell cytoplasmic vesicle membrane host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle viral capsid host cellular component host intracellular part cellular anatomical structure host cell cytoplasm host cell part host intracellular region other organism part host intracellular membrane-bounded organelle host cell membrane host cell cytoplasmic vesicle membrane host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle viral capsid icosahedral viral capsid virion component T=pseudo3 icosahedral viral capsid host cell nucleus
D [auth F]	The heavy chain of the antibody 8C4	-	-	-
C [auth B]	Genome polyprotein	cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity RNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity RNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups RNA binding binding nucleic acid binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity, acting on acid anhydrides passive transmembrane transporter activity channel activity transporter activity transmembrane transporter activity nucleic acid conformation isomerase activity isomerase activity helicase activity RNA helicase activity ATP-dependent activity, acting on RNA macromolecular conformation isomerase activity ATP-dependent activity structural molecule activity cation binding transition metal ion binding zinc ion binding metal ion binding	nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process RNA metabolic process viral life cycle nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA biosynthetic process nucleic acid biosynthetic process nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process RNA metabolic process viral life cycle nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA biosynthetic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process symbiont-mediated suppression of host signal transduction pathway symbiont-mediated perturbation of host NF-kappaB cascade symbiont-mediated perturbation of host cellular process biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host process symbiont-mediated perturbation of host signal transduction pathway symbiont-mediated suppression of host NF-kappaB cascade modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction transmembrane transport localization transport monoatomic ion transmembrane transport monoatomic ion transport establishment of localization gene expression DNA-templated transcription symbiont-mediated disruption of host anatomical structure symbiont-mediated disruption of host cellular anatomical structure symbiont-mediated perturbation of host membrane symbiont genome entry into host cell via pore formation in plasma membrane symbiont entry into host cell symbiont entry into host disruption of anatomical structure in another organism virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host endocytosis involved in viral entry into host cell symbiont-mediated perturbation of host autophagy symbiont-mediated activation of host autophagy proteolysis protein metabolic process symbiont-mediated perturbation of host defense response symbiont-mediated suppression of host pathogen-associated molecular pattern receptor signaling pathway symbiont-mediated perturbation of host immune response symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity symbiont-mediated suppression of host immune response symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway symbiont-mediated suppression of host innate immune response symbiont-mediated perturbation of host innate immune response symbiont-mediated perturbation of host intracellular transport symbiont-mediated suppression of host mRNA export from nucleus symbiont-mediated suppression of host gene expression symbiont-mediated perturbation of host gene expression	host cellular component host intracellular part cellular anatomical structure host cell cytoplasm host cell part host intracellular region other organism part host intracellular membrane-bounded organelle host cell membrane host cell cytoplasmic vesicle membrane host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle viral capsid host cellular component host intracellular part cellular anatomical structure host cell cytoplasm host cell part host intracellular region other organism part host intracellular membrane-bounded organelle host cell membrane host cell cytoplasmic vesicle membrane host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle viral capsid icosahedral viral capsid virion component T=pseudo3 icosahedral viral capsid host cell nucleus
B [auth E]	Light chain of chain	-	-	-
A	Genome polyprotein	cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity RNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity RNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups RNA binding binding nucleic acid binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity, acting on acid anhydrides passive transmembrane transporter activity channel activity transporter activity transmembrane transporter activity nucleic acid conformation isomerase activity isomerase activity helicase activity RNA helicase activity ATP-dependent activity, acting on RNA macromolecular conformation isomerase activity ATP-dependent activity structural molecule activity cation binding transition metal ion binding zinc ion binding metal ion binding	nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process RNA metabolic process viral life cycle nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA biosynthetic process nucleic acid biosynthetic process nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process RNA metabolic process viral life cycle nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA biosynthetic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process symbiont-mediated suppression of host signal transduction pathway symbiont-mediated perturbation of host NF-kappaB cascade symbiont-mediated perturbation of host cellular process biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host process symbiont-mediated perturbation of host signal transduction pathway symbiont-mediated suppression of host NF-kappaB cascade modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction transmembrane transport localization transport monoatomic ion transmembrane transport monoatomic ion transport establishment of localization gene expression DNA-templated transcription symbiont-mediated disruption of host anatomical structure symbiont-mediated disruption of host cellular anatomical structure symbiont-mediated perturbation of host membrane symbiont genome entry into host cell via pore formation in plasma membrane symbiont entry into host cell symbiont entry into host disruption of anatomical structure in another organism virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host endocytosis involved in viral entry into host cell symbiont-mediated perturbation of host autophagy symbiont-mediated activation of host autophagy proteolysis protein metabolic process symbiont-mediated perturbation of host defense response symbiont-mediated suppression of host pathogen-associated molecular pattern receptor signaling pathway symbiont-mediated perturbation of host immune response symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity symbiont-mediated suppression of host immune response symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway symbiont-mediated suppression of host innate immune response symbiont-mediated perturbation of host innate immune response symbiont-mediated perturbation of host intracellular transport symbiont-mediated suppression of host mRNA export from nucleus symbiont-mediated suppression of host gene expression symbiont-mediated perturbation of host gene expression	host cellular component host intracellular part cellular anatomical structure host cell cytoplasm host cell part host intracellular region other organism part host intracellular membrane-bounded organelle host cell membrane host cell cytoplasmic vesicle membrane host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle viral capsid host cellular component host intracellular part cellular anatomical structure host cell cytoplasm host cell part host intracellular region other organism part host intracellular membrane-bounded organelle host cell membrane host cell cytoplasmic vesicle membrane host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle viral capsid icosahedral viral capsid virion component T=pseudo3 icosahedral viral capsid host cell nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth C]	IPR059138	Picornavirus capsid VP1	Domain
E [auth C]	IPR001205	RNA-directed RNA polymerase, C-terminal domain	Domain
E [auth C]	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
E [auth C]	IPR003593	AAA+ ATPase domain	Domain
E [auth C]	IPR003138	Picornavirus coat protein VP4	Family
E [auth C]	IPR000199	Peptidase C3A/C3B, picornaviral	Domain
E [auth C]	IPR001676	Picornavirus capsid	Domain
E [auth C]	IPR014759	Helicase, superfamily 3, single-stranded RNA virus	Domain
E [auth C]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
E [auth C]	IPR000081	Peptidase C3, picornavirus core protein 2A	Domain
E [auth C]	IPR029053	Viral coat protein subunit	Homologous Superfamily
E [auth C]	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
E [auth C]	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
E [auth C]	IPR044067	Picornavirales 3C/3C-like protease domain	Domain
E [auth C]	IPR033703	Picornavirus/Calicivirus coat protein	Domain
E [auth C]	IPR002527	2B protein, picornavirus	Domain
E [auth C]	IPR014838	Poliovirus 3A protein-like	Domain
E [auth C]	IPR036203	Poliovirus core protein 3a, soluble domain	Homologous Superfamily
E [auth C]	IPR007094	RNA-directed RNA polymerase, catalytic domain	Domain
E [auth C]	IPR000605	Helicase, superfamily 3, single-stranded DNA/RNA virus	Domain
C [auth B]	IPR059138	Picornavirus capsid VP1	Domain
C [auth B]	IPR001205	RNA-directed RNA polymerase, C-terminal domain	Domain
C [auth B]	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
C [auth B]	IPR003593	AAA+ ATPase domain	Domain
C [auth B]	IPR003138	Picornavirus coat protein VP4	Family
C [auth B]	IPR000199	Peptidase C3A/C3B, picornaviral	Domain
C [auth B]	IPR001676	Picornavirus capsid	Domain
C [auth B]	IPR014759	Helicase, superfamily 3, single-stranded RNA virus	Domain
C [auth B]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
C [auth B]	IPR000081	Peptidase C3, picornavirus core protein 2A	Domain
C [auth B]	IPR029053	Viral coat protein subunit	Homologous Superfamily
C [auth B]	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
C [auth B]	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
C [auth B]	IPR044067	Picornavirales 3C/3C-like protease domain	Domain
C [auth B]	IPR033703	Picornavirus/Calicivirus coat protein	Domain
C [auth B]	IPR002527	2B protein, picornavirus	Domain
C [auth B]	IPR014838	Poliovirus 3A protein-like	Domain
C [auth B]	IPR036203	Poliovirus core protein 3a, soluble domain	Homologous Superfamily
C [auth B]	IPR007094	RNA-directed RNA polymerase, catalytic domain	Domain
C [auth B]	IPR000605	Helicase, superfamily 3, single-stranded DNA/RNA virus	Domain
A	IPR059138	Picornavirus capsid VP1	Domain
A	IPR001205	RNA-directed RNA polymerase, C-terminal domain	Domain
A	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
A	IPR003593	AAA+ ATPase domain	Domain
A	IPR003138	Picornavirus coat protein VP4	Family
A	IPR000199	Peptidase C3A/C3B, picornaviral	Domain
A	IPR001676	Picornavirus capsid	Domain
A	IPR014759	Helicase, superfamily 3, single-stranded RNA virus	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A	IPR000081	Peptidase C3, picornavirus core protein 2A	Domain
A	IPR029053	Viral coat protein subunit	Homologous Superfamily
A	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A	IPR044067	Picornavirales 3C/3C-like protease domain	Domain
A	IPR033703	Picornavirus/Calicivirus coat protein	Domain
A	IPR002527	2B protein, picornavirus	Domain
A	IPR014838	Poliovirus 3A protein-like	Domain
A	IPR036203	Poliovirus core protein 3a, soluble domain	Homologous Superfamily
A	IPR007094	RNA-directed RNA polymerase, catalytic domain	Domain
A	IPR000605	Helicase, superfamily 3, single-stranded DNA/RNA virus	Domain