Annotations: 3JBA

The U4 antibody epitope on human papillomavirus 16 identified by cryo-EM

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Family 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)
C [auth B]	SCOP2B Superfamily	Group I dsDNA viruses	8041026	3000939	SCOP2B (2022-06-29)
D [auth A]	SCOP2B Superfamily	Group I dsDNA viruses	8041026	3000939	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Group I dsDNA viruses	8041026	3000939	SCOP2B (2022-06-29)
F [auth D]	SCOP2B Superfamily	Group I dsDNA viruses	8041026	3000939	SCOP2B (2022-06-29)
G [auth C]	SCOP2B Superfamily	Group I dsDNA viruses	8041026	3000939	SCOP2B (2022-06-29)
H [auth F]	SCOP2B Superfamily	Group I dsDNA viruses	8041026	3000939	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)
C [auth B]	IF-2B	e3jbaB1	A: beta barrels	X: Hsp90 co-chaperone CDC37 middle domain	H: Lysozyme-like	T: Lysozyme-like	F: IF-2B	ECOD (v294.2)
D [auth A]	IF-2B	e3jbaA1	A: beta barrels	X: Hsp90 co-chaperone CDC37 middle domain	H: Lysozyme-like	T: Lysozyme-like	F: IF-2B	ECOD (v294.2)
E	IF-2B	e3jbaE1	A: beta barrels	X: Hsp90 co-chaperone CDC37 middle domain	H: Lysozyme-like	T: Lysozyme-like	F: IF-2B	ECOD (v294.2)
F [auth D]	IF-2B	e3jbaD1	A: beta barrels	X: Hsp90 co-chaperone CDC37 middle domain	H: Lysozyme-like	T: Lysozyme-like	F: IF-2B	ECOD (v294.2)
G [auth C]	IF-2B	e3jbaC1	A: beta barrels	X: Hsp90 co-chaperone CDC37 middle domain	H: Lysozyme-like	T: Lysozyme-like	F: IF-2B	ECOD (v294.2)
H [auth F]	IF-2B	e3jbaF1	A: beta barrels	X: Hsp90 co-chaperone CDC37 middle domain	H: Lysozyme-like	T: Lysozyme-like	F: IF-2B	ECOD (v294.2)
B [auth H]	IF-2B	e3jbaH1	A: beta barrels	X: Hsp90 co-chaperone CDC37 middle domain	H: Lysozyme-like	T: Lysozyme-like	F: IF-2B	ECOD (v294.2)
A [auth L]	IF-2B	e3jbaL1	A: beta barrels	X: Hsp90 co-chaperone CDC37 middle domain	H: Lysozyme-like	T: Lysozyme-like	F: IF-2B	ECOD (v294.2)

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
B [auth H]	H16.U4 Fv	VH	Mus musculus (house mouse)	IGHV5-9-101, IGHV5-9-301, IGHJ2*01	V-DOMAIN VH	IG	FV-HEAVY_KAPPA	IMGT (202617-0)
A [auth L]	H16.U4 Fv	V-KAPPA	Mus musculus (house mouse)	IGKV8-3001, IGKJ501	V-DOMAIN V-KAPPA	IG	FV-HEAVY_KAPPA	IMGT (202617-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth H]	Heavy Chain	IGHV5	-	major capsid protein l1	SAbDab (2026-05-08)
A [auth L]	Light Chain	IGKV8	Kappa	major capsid protein l1	SAbDab (2026-05-08)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth B], D [auth A], E, F [auth D], G [auth C], C [auth B], D [auth A], E, F [auth D], G [auth C], H [auth F]	PF00500	L1 (late) protein (Late_protein_L1)	L1 (late) protein		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth B], D [auth A], E, F [auth D], G [auth C], C [auth B], D [auth A], E, F [auth D], G [auth C], H [auth F]	Major capsid protein L1	structural molecule activity	virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral process viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont entry into host cell symbiont entry into host endocytosis involved in viral entry into host cell	viral capsid icosahedral viral capsid T=7 icosahedral viral capsid virion component host intracellular membrane-bounded organelle host cellular component host intracellular part cellular anatomical structure host cell part host intracellular region host cell nucleus other organism part host intracellular organelle
B [auth H]	H16.U4 antibody heavy chain	-	-	-
A [auth L]	H16.U4 antibody light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth B], D [auth A], E, F [auth D], G [auth C], C [auth B], D [auth A], E, F [auth D], G [auth C], H [auth F]	IPR036973	Major capsid L1 (late) superfamily, Papillomavirus	Homologous Superfamily
C [auth B], D [auth A], E, F [auth D], G [auth C], C [auth B], D [auth A], E, F [auth D], G [auth C], H [auth F]	IPR011222	Double-stranded DNA virus, group I, capsid	Homologous Superfamily
C [auth B], D [auth A], E, F [auth D], G [auth C], C [auth B], D [auth A], E, F [auth D], G [auth C], H [auth F]	IPR002210	Major capsid L1 (late) protein, Papillomavirus	Family

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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.