SAXSdb — 3f6n

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

Virion-associated protein

Cauliflower mosaic virus (STRAIN STRASBOURG)

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	VDBP_CAMVS
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–129； UniProt 1–129 Author chain B； PDBConstruct 1–129； UniProt 1–129 Author chain C； PDBConstruct 1–129； UniProt 1–129 Author chain D； PDBConstruct 1–129； UniProt 1–129

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	3f6n
Deposition date deposition_date	2008-11-06
Structure title title	Crystal structure of the virion-associated protein P3 from Caulimovirus
Keywords keywords	COILED-COIL, VIRAL PROTEIN, TETRAMER, DNA-binding, Virion, DNA-BINDING PROTEIN; VIRAL PROTEIN, DNA-BINDING 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.

3f6n__assembly_1__model_1

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

Download this curve (.dat)

3f6n__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3f6n__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	31.81 Å
Rg (electron density)	32.45 Å
Total Rg	32.28 Å
Atom count	2203
Residues	289
Excluded volume	39887 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3f6n__assembly_1__model_1`	tetrameric （4）	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)

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	3f6nA00
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	250 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	630 —

Domain ID domain_id	3f6nB00
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	250 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	630 —

Domain ID domain_id	3f6nC00
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	250 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	630 —

Domain ID domain_id	3f6nD00
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	250 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	630 —

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Unit-cell length a length_a	104.943 Å
Unit-cell length b length_b	104.943 Å
Unit-cell length c length_c	72.527 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	24

Space group space_group	P 64
Space-group number int_tables_number	172
Crystal system crystal_system	—

Resolution resolution	3.100 Å
Low-resolution limit resolution_low	20.850 Å
R factor r_factor	0.2290
R_work r_work	0.2220
R_free r_free	0.2870

Description description	Virion-associated protein
Molecular weight formula_weight	14168.2 kDa
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	2204

Crystal structure of the virion-associated protein P3 from Caulimovirus

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

Virion-associated protein

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

3f6n__assembly_1__model_1

3f6n__assembly_1__model_1 | I(q)

3f6n__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 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	Cauliflower mosaic virus (STRAIN STRASBOURG)
Common name common_name	CaMV
NCBI taxonomy ID ncbi_taxonomy_id	10648
Host organism host_organism	Escherichia coli

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	1

Crystal structure of the virion-associated protein P3 from Caulimovirus

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

Virion-associated protein

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

3f6n__assembly_1__model_1

3f6n__assembly_1__model_1 | I(q)

3f6n__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 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)