Annotations: 9RM2

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A [auth H], D [auth A], G [auth D], J [auth G], M	Heavy Chain	IGHV4	-	major capsid protein vp1	SAbDab (2025-10-31)
B [auth L], E [auth B], H [auth E], K [auth J], N	Light Chain	IGKV3	Kappa	major capsid protein vp1	SAbDab (2025-10-31)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

Chain	Name	Target	Provenance Source
A [auth H], D [auth A], G [auth D], J [auth G], M	Potravitug	BK polyomavirus VP1	Therapeutic SAbDab (2025-10-31)
B [auth L], E [auth B], H [auth E], K [auth J], N	Potravitug	BK polyomavirus VP1	Therapeutic SAbDab (2025-10-31)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth P], F [auth C], I [auth F], L [auth K], O	PF00718	Polyomavirus coat protein (Polyoma_coat)	Polyomavirus coat protein		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth H], D [auth A], G [auth D], J [auth G], M	319C07 antibody heavy chain, Fab fragment	-	-	-
B [auth L], E [auth B], H [auth E], K [auth J], N	319C07 antibody light chain, Fab fragment	-	-	-
C [auth P], F [auth C], I [auth F], L [auth K], O	Major capsid protein VP1	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 import into cell receptor-mediated endocytosis of virus by host cell transport establishment of localization caveolin-mediated endocytosis vesicle-mediated transport 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 import into cell receptor-mediated endocytosis of virus by host cell transport establishment of localization caveolin-mediated endocytosis vesicle-mediated transport localization symbiont entry into host cell caveolin-mediated endocytosis of virus by host cell symbiont entry into host cellular process endocytosis involved in viral entry into host cell receptor-mediated endocytosis endocytosis	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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth P], F [auth C], I [auth F], L [auth K], O	IPR011222	Double-stranded DNA virus, group I, capsid	Homologous Superfamily
C [auth P], F [auth C], I [auth F], L [auth K], O	IPR000662	Capsid protein VP1,Polyomavirus	Family
C [auth P], F [auth C], I [auth F], L [auth K], O	IPR036931	Polyomavirus capsid protein VP1 superfamily	Homologous Superfamily

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.