SAXSdb — 1cn3

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1. Protein Identity and Related Structures Protein Identity & Related Structures

COAT PROTEIN VP1

Polyomavirus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 6	FRAGMENT OF COAT PROTEIN VP2 × 1 （P12908）	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 12	FRAGMENT OF COAT PROTEIN VP2 × 2 （P12908）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	COA1_POVMP
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–283； UniProt 34–316 Author chain B； PDBConstruct 1–283； UniProt 34–316 Author chain C； PDBConstruct 1–283； UniProt 34–316 Author chain D； PDBConstruct 1–283； UniProt 34–316 Author chain E； PDBConstruct 1–283； UniProt 34–316

FRAGMENT OF COAT PROTEIN VP2

OrganismNot specified

UniProt P12908

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 6	COAT PROTEIN VP1 × 5 （P49302）	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 12	COAT PROTEIN VP1 × 10 （P49302）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	COA2_POVMC
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain F； PDBConstruct 11–29； UniProt 278–296

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	1cn3
Deposition date deposition_date	1999-05-24
Structure title title	INTERACTION OF POLYOMAVIRUS INTERNAL PROTEIN VP2 WITH MAJOR CAPSID PROTEIN VP1 AND IMPLICATIONS FOR PARTICIPATION OF VP2 IN VIRAL ENTRY
Keywords keywords	VIRAL COAT PROTEIN VP1, VIRAL COAT PROTEIN VP2, VIRAL ENTRY, Viral protein; VIRAL PROTEIN
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1cn3__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1cn3__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1cn3__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	33.87 Å
Rg (electron density)	32.84 Å
Total Rg	33.76 Å
Atom count	11261
Residues	1444
Excluded volume	200300 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1cn3__assembly_1__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1cn3__assembly_2__model_1`	dodecameric （12）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Description description	COAT PROTEIN VP1
Molecular weight formula_weight	31501.6 kDa
Source method src_method	man
Copy count entity_count	5

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E
Atom count atom_count	11261

MEVLDLVTGPDSVTEIEAFLNPRMGQPPTPESLTEGGQYYGWSRGINLATSDTEDSPGNNTLPTWSMAKLQLPMLNEDLTCDTLQMWEAVSVKTEVVGSGSLLDVHGFNKPTDTVNTKGISTPVEGSQYHVFAVGGEPLDLQGLVTDARTKYKEEGVVTIKTITKKDMVNKDQVLNPISKAKLDKDGMYPVEIWHPDPAKNENTRYFGNYTGGTTTPPVLQFTNTLTTVLLDENGVGPLCKGEGLYLSCVDIMGWRVTRNYDVHHWRGLPRYFKITLRKRWVK

Source Source

Source organism organism	Polyomavirus
NCBI taxonomy ID ncbi_taxonomy_id	10624
Host organism host_organism	Erinaceus europaeus

Entity 2 Entity 2 polymer

Description description	FRAGMENT OF COAT PROTEIN VP2
Molecular weight formula_weight	2797.2 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

GGGGGGGGAASHQRVTPDWMLPLILGLYG

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6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (5 domains)

Domain ID domain_id	d1cn3a_
Class class	b — All beta proteins
Fold Fold fold	b.121 — Nucleoplasmin-like/VP (viral coat and capsid proteins)
Superfamily Superfamily superfamily	b.121.6 — Group I dsDNA viruses
Family Family family	b.121.6.1 — Papovaviridae-like VP

Domain ID domain_id	d1cn3b_
Class class	b — All beta proteins
Fold Fold fold	b.121 — Nucleoplasmin-like/VP (viral coat and capsid proteins)
Superfamily Superfamily superfamily	b.121.6 — Group I dsDNA viruses
Family Family family	b.121.6.1 — Papovaviridae-like VP

Domain ID domain_id	d1cn3c_
Class class	b — All beta proteins
Fold Fold fold	b.121 — Nucleoplasmin-like/VP (viral coat and capsid proteins)
Superfamily Superfamily superfamily	b.121.6 — Group I dsDNA viruses
Family Family family	b.121.6.1 — Papovaviridae-like VP

Domain ID domain_id	d1cn3d_
Class class	b — All beta proteins
Fold Fold fold	b.121 — Nucleoplasmin-like/VP (viral coat and capsid proteins)
Superfamily Superfamily superfamily	b.121.6 — Group I dsDNA viruses
Family Family family	b.121.6.1 — Papovaviridae-like VP

Domain ID domain_id	d1cn3e_
Class class	b — All beta proteins
Fold Fold fold	b.121 — Nucleoplasmin-like/VP (viral coat and capsid proteins)
Superfamily Superfamily superfamily	b.121.6 — Group I dsDNA viruses
Family Family family	b.121.6.1 — Papovaviridae-like VP

CATH v4.4 (5 domains)

Domain ID domain_id	1cn3A00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	175 — Polyomavirus Vp1; Chain A
Homologous superfamily homologous superfamily	10 — Capsid protein VP1,Polyomavirus

Domain ID domain_id	1cn3B00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	175 — Polyomavirus Vp1; Chain A
Homologous superfamily homologous superfamily	10 — Capsid protein VP1,Polyomavirus

Domain ID domain_id	1cn3C00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	175 — Polyomavirus Vp1; Chain A
Homologous superfamily homologous superfamily	10 — Capsid protein VP1,Polyomavirus

Domain ID domain_id	1cn3D00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	175 — Polyomavirus Vp1; Chain A
Homologous superfamily homologous superfamily	10 — Capsid protein VP1,Polyomavirus

Domain ID domain_id	1cn3E00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	175 — Polyomavirus Vp1; Chain A
Homologous superfamily homologous superfamily	10 — Capsid protein VP1,Polyomavirus

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Unit-cell length a length_a	219.000 Å
Unit-cell length b length_b	219.000 Å
Unit-cell length c length_c	99.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	30

Space group space_group	P 31 2 1
Space-group number int_tables_number	152
Crystal system crystal_system	—

Resolution resolution	2.200 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	—
R_work r_work	0.2300
R_free r_free	0.2600

INTERACTION OF POLYOMAVIRUS INTERNAL PROTEIN VP2 WITH MAJOR CAPSID PROTEIN VP1 AND IMPLICATIONS FOR PARTICIPATION OF VP2 IN VIRAL ENTRY

1. Protein Identity and Related Structures Protein Identity & Related Structures

COAT PROTEIN VP1

State in the Current Structure

Other States of the Same Protein in the Database

FRAGMENT OF COAT PROTEIN VP2

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1cn3__assembly_1__model_1

1cn3__assembly_1__model_1 | I(q)

1cn3__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (5 domains)

CATH v4.4 (5 domains)

7. Citations (1)

INTERACTION OF POLYOMAVIRUS INTERNAL PROTEIN VP2 WITH MAJOR CAPSID PROTEIN VP1 AND IMPLICATIONS FOR PARTICIPATION OF VP2 IN VIRAL ENTRY

1. Protein Identity and Related Structures Protein Identity & Related Structures

COAT PROTEIN VP1

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

FRAGMENT OF COAT PROTEIN VP2

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1cn3__assembly_1__model_1

1cn3__assembly_1__model_1 | I(q)

1cn3__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (5 domains)

CATH v4.4 (5 domains)

7. Citations (1)