SAXSdb — 2tbv

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

TOMATO BUSHY STUNT VIRUS

Tomato bushy stunt virus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 180	CALCIUM ION × 360	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 3	CALCIUM ION × 6	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 15	CALCIUM ION × 30	Consistent with protein count
4	Protein homooligomer	Homooligomer	Protein 18	CALCIUM ION × 36	Consistent with protein count
5	Protein homooligomer	Homooligomer	Protein 3	CALCIUM ION × 6	Consistent with protein count
6	Protein homooligomer	Homooligomer	Protein 15	CALCIUM ION × 30	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	COAT_TBSVB
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–387； UniProt 1–387 Author chain B； PDBConstruct 1–387； UniProt 1–387 Author chain C； PDBConstruct 1–387； UniProt 1–387

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	2tbv
Deposition date deposition_date	1984-06-22
Structure title title	STRUCTURE OF TOMATO BUSHY STUNT VIRUS. V. COAT PROTEIN SEQUENCE DETERMINATION AND ITS STRUCTURAL IMPLICATIONS
Keywords keywords	VIRUS, Icosahedral virus; VIRUS
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.

2tbv__assembly_1__model_1

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

Download this curve (.dat)

2tbv__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2tbv__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	0.00 Å
Rg (electron density)	141.80 Å
Total Rg	142.00 Å
Atom count	396360
Residues	53400
Excluded volume	7092200 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2tbv__assembly_1__model_1`	180-MERIC （180）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2tbv__assembly_2__model_1`	trimeric （3）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
3	1	`2tbv__assembly_3__model_1`	pentadecameric （15）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
4	1	`2tbv__assembly_4__model_1`	octadecameric （18）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
5	1	`2tbv__assembly_5__model_1`	trimeric （3）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
6	1	`2tbv__assembly_6__model_1`	pentadecameric （15）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.

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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) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d2tbva_
Class class	b — All beta proteins
Fold Fold fold	b.121 — Nucleoplasmin-like/VP (viral coat and capsid proteins)
Superfamily Superfamily superfamily	b.121.4 — Positive stranded ssRNA viruses
Family Family family	b.121.4.7 — Tombusviridae-like VP

Domain ID domain_id	d2tbvb_
Class class	b — All beta proteins
Fold Fold fold	b.121 — Nucleoplasmin-like/VP (viral coat and capsid proteins)
Superfamily Superfamily superfamily	b.121.4 — Positive stranded ssRNA viruses
Family Family family	b.121.4.7 — Tombusviridae-like VP

Domain ID domain_id	d2tbvc_
Class class	b — All beta proteins
Fold Fold fold	b.121 — Nucleoplasmin-like/VP (viral coat and capsid proteins)
Superfamily Superfamily superfamily	b.121.4 — Positive stranded ssRNA viruses
Family Family family	b.121.4.7 — Tombusviridae-like VP

CATH v4.4 (3 domains)

Domain ID domain_id	2tbvA00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	2tbvB00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	2tbvC00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	20 —

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Unit-cell length a length_a	383.200 Å
Unit-cell length b length_b	383.200 Å
Unit-cell length c length_c	383.200 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	360

Space group space_group	I 2 3
Space-group number int_tables_number	197
Crystal system crystal_system	—

Resolution resolution	2.900 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Description description	TOMATO BUSHY STUNT VIRUS
Molecular weight formula_weight	40576.0 kDa
Source method src_method	man
Copy count entity_count	3

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	6648

STRUCTURE OF TOMATO BUSHY STUNT VIRUS. V. COAT PROTEIN SEQUENCE DETERMINATION AND ITS STRUCTURAL IMPLICATIONS

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

TOMATO BUSHY STUNT VIRUS

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

2tbv__assembly_1__model_1

2tbv__assembly_1__model_1 | I(q)

2tbv__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (7)

Source organism organism	Tomato bushy stunt virus
NCBI taxonomy ID ncbi_taxonomy_id	12145

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	6

STRUCTURE OF TOMATO BUSHY STUNT VIRUS. V. COAT PROTEIN SEQUENCE DETERMINATION AND ITS STRUCTURAL IMPLICATIONS

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

TOMATO BUSHY STUNT VIRUS

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

2tbv__assembly_1__model_1

2tbv__assembly_1__model_1 | I(q)

2tbv__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (7)