Annotations: 8W5O

Cryo-EM structure of Qb-Ab31

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
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)
D [auth B]	SCOP2B Superfamily	RNA bacteriophage capsid protein	8035305	3001853	SCOP2B (2022-06-29)
E [auth A]	SCOP2B Superfamily	RNA bacteriophage capsid protein	8035305	3001853	SCOP2B (2022-06-29)
C [auth b]	SCOP2B Superfamily	RNA bacteriophage capsid protein	8035305	3001853	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)
A [auth H]	Cytochrom_B559a	e8w5oH01	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Cytochrom_B559a	ECOD (v295.2)
D [auth B]	Ferritin	e8w5oB1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Ferritin	ECOD (v295.2)
E [auth A]	Ferritin	e8w5oA1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Ferritin	ECOD (v295.2)
C [auth b]	Ferritin	e8w5ob1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Ferritin	ECOD (v295.2)
B [auth L]	Cytochrom_B559a	e8w5oL01	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Cytochrom_B559a	ECOD (v295.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A [auth H]	Heavy Chain	IGHV5	-	minor capsid protein a1 \| unknown \| minor capsid protein a1	SAbDab (2026-08-21)
B [auth L]	Light Chain	IGKV5	Kappa	minor capsid protein a1 \| unknown \| minor capsid protein a1	SAbDab (2026-08-21)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth H]	Heavy chain of Ab31	-	-	-
C [auth b], D [auth B], E [auth A]	Minor capsid protein A1	structural molecule activity translation regulator activity translation repressor activity RNA binding binding nucleic acid binding	-	viral capsid T=3 icosahedral viral capsid icosahedral viral capsid virion component
B [auth L]	Light chain of Ab31	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth b], D [auth B], E [auth A]	IPR002703	Levivirus coat protein	Family
C [auth b], D [auth B], E [auth A]	IPR015954	Bacteriophage RNA-type, capsid	Homologous Superfamily

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