Annotations: 6JHQ

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E	YscJ_FliF	e6jhqE1	A: a/b three-layered sandwiches	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Family A G protein-coupled receptor-like	F: YscJ_FliF	ECOD (v294.1)
D	YscJ_FliF	e6jhqD1	A: a/b three-layered sandwiches	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Family A G protein-coupled receptor-like	F: YscJ_FliF	ECOD (v294.1)
C	YscJ_FliF	e6jhqC1	A: a/b three-layered sandwiches	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Family A G protein-coupled receptor-like	F: YscJ_FliF	ECOD (v294.1)
B	YscJ_FliF	e6jhqB1	A: a/b three-layered sandwiches	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Family A G protein-coupled receptor-like	F: YscJ_FliF	ECOD (v294.1)
A	YscJ_FliF	e6jhqA1	A: a/b three-layered sandwiches	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Family A G protein-coupled receptor-like	F: YscJ_FliF	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C	2.60.120.20	Mainly Beta	Sandwich	Jelly Rolls		CATH (utative)
B	2.60.120.20	Mainly Beta	Sandwich	Jelly Rolls		CATH (utative)
A	2.60.120.20	Mainly Beta	Sandwich	Jelly Rolls		CATH (utative)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
E	Fab F4, anti-HAV, neutralizing	L-KAPPA	-	IGKV4-5901, IGKJ201, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	L-KAPPA	IMGT (202611-0)
D	Fab F4, anti-HAV, neutralizing	VH-CH1	-	IGHV5-9-101, IGHV5-9-301, IGHV5-9-201, IGHJ201, IGHG1*02	V-DOMAIN VH, C-DOMAIN CH1	IG	L-KAPPA	IMGT (202611-0)
C	-	null	-	-	-	IG	L-KAPPA	IMGT (202611-0)
B	-	null	-	-	-	IG	L-KAPPA	IMGT (202611-0)
A	-	null	-	-	-	IG	L-KAPPA	IMGT (202611-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
E	Light Chain	IGKV4	Kappa	vp3	SAbDab (2026-03-27)
D	Heavy Chain	IGHV5	-	vp3	SAbDab (2026-03-27)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C	PF00073	picornavirus capsid protein (Rhv)	picornavirus capsid protein	CAUTION: This alignment is very weak. It can not be generated by clustalw. If a representative set is used for a seed, many so-called members are not recognised. The family should probably be split up into sub-families. Capsid proteins of picornavi ...	CAUTION: This alignment is very weak. It can not be generated by clustalw. If a representative set is used for a seed, many so-called members are not recognised. The family should probably be split up into sub-families. Capsid proteins of picornaviruses. Picornaviruses are non-enveloped plus-strand ssRNA animal viruses with icosahedral capsids. They include rhinovirus (common cold) and poliovirus. Common structure is an 8-stranded beta sandwich. Variations (one or two extra strands) occur.	Domain
B	PF00073	picornavirus capsid protein (Rhv)	picornavirus capsid protein	CAUTION: This alignment is very weak. It can not be generated by clustalw. If a representative set is used for a seed, many so-called members are not recognised. The family should probably be split up into sub-families. Capsid proteins of picornavi ...	CAUTION: This alignment is very weak. It can not be generated by clustalw. If a representative set is used for a seed, many so-called members are not recognised. The family should probably be split up into sub-families. Capsid proteins of picornaviruses. Picornaviruses are non-enveloped plus-strand ssRNA animal viruses with icosahedral capsids. They include rhinovirus (common cold) and poliovirus. Common structure is an 8-stranded beta sandwich. Variations (one or two extra strands) occur.	Domain
A	PF12944	Hepatitis A virus viral protein VP (HAV_VP)	Hepatitis A virus viral protein VP	This is a family of the viral protein found in hepatitis A viruses. HAV is unique among picornaviruses in targeting the liver [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E	FAB Light Chain	-	-	-
D	FAB Heavy Chain	-	-	-
C	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	RNA metabolic process viral life cycle primary metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process metabolic process RNA metabolic process viral life cycle primary metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process metabolic process cellular process macromolecule metabolic process biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host 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 perturbation of host defense response symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity symbiont-mediated suppression of host pathogen-associated molecular pattern receptor signaling pathway symbiont-mediated perturbation of host immune response symbiont-mediated suppression of host signal transduction pathway symbiont-mediated suppression of host immune response symbiont-mediated suppression of host innate immune response symbiont-mediated perturbation of host process symbiont-mediated perturbation of host innate immune response symbiont-mediated perturbation of host signal transduction pathway modulation of process of another organism symbiont-mediated suppression of cytoplasmic pattern recognition receptor signaling pathway virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host proteolysis protein metabolic process	host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane host cell cytoplasmic vesicle membrane other organism part host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle cellular anatomical structure host cell cytoplasm host cell part host intracellular region host multivesicular body host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane host cell cytoplasmic vesicle membrane other organism part host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle cellular anatomical structure host cell cytoplasm host cell part host intracellular region host multivesicular body host cell late endosome host cell endosome viral capsid icosahedral viral capsid virion component T=pseudo3 icosahedral viral capsid host cell mitochondrion host organelle outer membrane host cell mitochondrial envelope host cell mitochondrial outer membrane host cell mitochondrial membrane host outer membrane
B	VP2	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	RNA metabolic process viral life cycle primary metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process metabolic process RNA metabolic process viral life cycle primary metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process metabolic process cellular process macromolecule metabolic process biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host 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 perturbation of host defense response symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity symbiont-mediated suppression of host pathogen-associated molecular pattern receptor signaling pathway symbiont-mediated perturbation of host immune response symbiont-mediated suppression of host signal transduction pathway symbiont-mediated suppression of host immune response symbiont-mediated suppression of host innate immune response symbiont-mediated perturbation of host process symbiont-mediated perturbation of host innate immune response symbiont-mediated perturbation of host signal transduction pathway modulation of process of another organism symbiont-mediated suppression of cytoplasmic pattern recognition receptor signaling pathway virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host proteolysis protein metabolic process	host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane host cell cytoplasmic vesicle membrane other organism part host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle cellular anatomical structure host cell cytoplasm host cell part host intracellular region host multivesicular body host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane host cell cytoplasmic vesicle membrane other organism part host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle cellular anatomical structure host cell cytoplasm host cell part host intracellular region host multivesicular body host cell late endosome host cell endosome viral capsid icosahedral viral capsid virion component T=pseudo3 icosahedral viral capsid host cell mitochondrion host organelle outer membrane host cell mitochondrial envelope host cell mitochondrial outer membrane host cell mitochondrial membrane host outer membrane
A	VP1	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	RNA metabolic process viral life cycle primary metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process metabolic process RNA metabolic process viral life cycle primary metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process metabolic process cellular process macromolecule metabolic process biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host 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 perturbation of host defense response symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity symbiont-mediated suppression of host pathogen-associated molecular pattern receptor signaling pathway symbiont-mediated perturbation of host immune response symbiont-mediated suppression of host signal transduction pathway symbiont-mediated suppression of host immune response symbiont-mediated suppression of host innate immune response symbiont-mediated perturbation of host process symbiont-mediated perturbation of host innate immune response symbiont-mediated perturbation of host signal transduction pathway modulation of process of another organism symbiont-mediated suppression of cytoplasmic pattern recognition receptor signaling pathway virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host proteolysis protein metabolic process	host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane host cell cytoplasmic vesicle membrane other organism part host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle cellular anatomical structure host cell cytoplasm host cell part host intracellular region host multivesicular body host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane host cell cytoplasmic vesicle membrane other organism part host cell cytoplasm part host intracellular organelle host cell cytoplasmic vesicle cellular anatomical structure host cell cytoplasm host cell part host intracellular region host multivesicular body host cell late endosome host cell endosome viral capsid icosahedral viral capsid virion component T=pseudo3 icosahedral viral capsid host cell mitochondrion host organelle outer membrane host cell mitochondrial envelope host cell mitochondrial outer membrane host cell mitochondrial membrane host outer membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C	IPR001205	RNA-directed RNA polymerase, C-terminal domain	Domain
C	IPR049133	2B protein, soluble domain	Domain
C	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
C	IPR001676	Picornavirus capsid	Domain
C	IPR014759	Helicase, superfamily 3, single-stranded RNA virus	Domain
C	IPR024354	Hepatitis A virus, protein VP1-2A	Family
C	IPR043504	Peptidase_S1_PA_chymotrypsin	Unknown
C	IPR029053	Viral coat protein subunit	Homologous Superfamily
C	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
C	IPR004004	Helicase/polymerase/peptidase polyprotein, Calicivirus-type	Family
C	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
C	IPR044067	Picornavirales 3C/3C-like protease domain	Domain
C	IPR033703	Picornavirus/Calicivirus coat protein	Domain
C	IPR007094	RNA-directed RNA polymerase, catalytic domain	Domain
C	IPR000605	Helicase, superfamily 3, single-stranded DNA/RNA virus	Domain
B	IPR001205	RNA-directed RNA polymerase, C-terminal domain	Domain
B	IPR049133	2B protein, soluble domain	Domain
B	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
B	IPR001676	Picornavirus capsid	Domain
B	IPR014759	Helicase, superfamily 3, single-stranded RNA virus	Domain
B	IPR024354	Hepatitis A virus, protein VP1-2A	Family
B	IPR043504	Peptidase_S1_PA_chymotrypsin	Unknown
B	IPR029053	Viral coat protein subunit	Homologous Superfamily
B	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
B	IPR004004	Helicase/polymerase/peptidase polyprotein, Calicivirus-type	Family
B	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
B	IPR044067	Picornavirales 3C/3C-like protease domain	Domain
B	IPR033703	Picornavirus/Calicivirus coat protein	Domain
B	IPR007094	RNA-directed RNA polymerase, catalytic domain	Domain
B	IPR000605	Helicase, superfamily 3, single-stranded DNA/RNA virus	Domain
A	IPR001205	RNA-directed RNA polymerase, C-terminal domain	Domain
A	IPR049133	2B protein, soluble domain	Domain
A	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
A	IPR001676	Picornavirus capsid	Domain
A	IPR014759	Helicase, superfamily 3, single-stranded RNA virus	Domain
A	IPR024354	Hepatitis A virus, protein VP1-2A	Family
A	IPR043504	Peptidase_S1_PA_chymotrypsin	Unknown
A	IPR029053	Viral coat protein subunit	Homologous Superfamily
A	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A	IPR004004	Helicase/polymerase/peptidase polyprotein, Calicivirus-type	Family
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	IPR007094	RNA-directed RNA polymerase, catalytic domain	Domain
A	IPR000605	Helicase, superfamily 3, single-stranded DNA/RNA virus	Domain