Annotations: 1SID

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1sida_	All beta proteins	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Group I dsDNA viruses	Papovaviridae-like VP	Polyomavirus coat proteins	(Mouse polyomavirus (strain p16 small-plaque) ) [TaxId: 47935 ],	SCOPe (2.08)
D	d1sidd_	All beta proteins	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Group I dsDNA viruses	Papovaviridae-like VP	Polyomavirus coat proteins	(Mouse polyomavirus (strain p16 small-plaque) ) [TaxId: 47935 ],	SCOPe (2.08)
F	d1sidf_	All beta proteins	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Group I dsDNA viruses	Papovaviridae-like VP	Polyomavirus coat proteins	(Mouse polyomavirus (strain p16 small-plaque) ) [TaxId: 47935 ],	SCOPe (2.08)
E	d1side_	All beta proteins	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Group I dsDNA viruses	Papovaviridae-like VP	Polyomavirus coat proteins	(Mouse polyomavirus (strain p16 small-plaque) ) [TaxId: 47935 ],	SCOPe (2.08)
C	d1sidc_	All beta proteins	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Group I dsDNA viruses	Papovaviridae-like VP	Polyomavirus coat proteins	(Mouse polyomavirus (strain p16 small-plaque) ) [TaxId: 47935 ],	SCOPe (2.08)
B	d1sidb_	All beta proteins	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Group I dsDNA viruses	Papovaviridae-like VP	Polyomavirus coat proteins	(Mouse polyomavirus (strain p16 small-plaque) ) [TaxId: 47935 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Group I dsDNA viruses	8040828	3000939	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Group I dsDNA viruses	8040828	3000939	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Group I dsDNA viruses	8040828	3000939	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Group I dsDNA viruses	8040828	3000939	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Group I dsDNA viruses	8040828	3000939	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Group I dsDNA viruses	8040828	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)
A	Rhv	e1sidA1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Rhv	ECOD (v294.1)
D	Usher	e1sidD1	A: a/b three-layered sandwiches	X: Inserted helical domain in fatty acid synthase subunit beta	H: Voltage-gated ion channels	T: Voltage-gated ion channels	F: Usher	ECOD (v294.1)
F	GFP	e1sidF1	A: a/b three-layered sandwiches	X: Alpha-beta plaits	H: Pseudouridine synthase	T: Pseudouridine synthase	F: GFP	ECOD (v294.1)
E	Rhv	e1sidE1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Rhv	ECOD (v294.1)
C	GFP	e1sidC1	A: a/b three-layered sandwiches	X: Alpha-beta plaits	H: Pseudouridine synthase	T: Pseudouridine synthase	F: GFP	ECOD (v294.1)
B	Rhv	e1sidB1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Rhv	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.175.10	Mainly Beta	Sandwich	Polyomavirus Vp1	Chain A	CATH (4.3.0)
D	2.60.175.10	Mainly Beta	Sandwich	Polyomavirus Vp1	Chain A	CATH (4.3.0)
F	2.60.175.10	Mainly Beta	Sandwich	Polyomavirus Vp1	Chain A	CATH (4.3.0)
E	2.60.175.10	Mainly Beta	Sandwich	Polyomavirus Vp1	Chain A	CATH (4.3.0)
C	2.60.175.10	Mainly Beta	Sandwich	Polyomavirus Vp1	Chain A	CATH (4.3.0)
B	2.60.175.10	Mainly Beta	Sandwich	Polyomavirus Vp1	Chain A	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	POLYOMAVIRUS COAT 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
A, B, C, D, E A, B, C, D, E, F	IPR011222	Double-stranded DNA virus, group I, capsid	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR000662	Capsid protein VP1,Polyomavirus	Family
A, B, C, D, E A, B, C, D, E, F	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.