SAXSdb — 1a6c

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

TOBACCO RINGSPOT VIRUS CAPSID PROTEIN

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 60	No other associated polymer	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 5	No other associated polymer	Consistent with protein count
4	Protein homooligomer	Homooligomer	Protein 6	No other associated polymer	Consistent with protein count
5	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count
6	Protein homooligomer	Homooligomer	Protein 30	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	COAT_TRSV
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–513； UniProt 3–515

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	1a6c
Deposition date deposition_date	1998-02-23
Structure title title	STRUCTURE OF TOBACCO RINGSPOT VIRUS
Keywords keywords	TRSV, NEPOVIRUS, VIRUS STRUCTURE, VIRUS EVOLUTION, PICORNAVIRUS SUPERFAMILY, VIRUS CAPSID PROTEIN, Icosahedral virus, 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.

1a6c__assembly_1__model_1

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

Download this curve (.dat)

1a6c__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1a6c__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)	127.20 Å
Total Rg	127.30 Å
Atom count	240960
Residues	30780
Excluded volume	4283800 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1a6c__assembly_1__model_1`	complete icosahedral assembly （60）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1a6c__assembly_2__model_1`	monomeric （1）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
3	1	`1a6c__assembly_3__model_1`	pentameric （5）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
4	1	`1a6c__assembly_4__model_1`	hexameric （6）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
5	1	`1a6c__assembly_5__model_1`	monomeric （1）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
6	1	`1a6c__assembly_6__model_1`	30-meric （30）	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 (1)

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6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d1a6ca1
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.121.4.2 — Comoviridae-like VP

Domain ID domain_id	d1a6ca2
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.121.4.2 — Comoviridae-like VP

Domain ID domain_id	d1a6ca3
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.121.4.2 — Comoviridae-like VP

CATH v4.4 (2 domains)

Domain ID domain_id	1a6cA01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1a6cA02
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	407.060 Å
Unit-cell length b length_b	399.680 Å
Unit-cell length c length_c	285.970 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	129.10 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	120

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	3.500 Å
Low-resolution limit resolution_low	8.000 Å
R factor r_factor	0.2690
R_work r_work	0.2690
R_free r_free	—

Description description	TOBACCO RINGSPOT VIRUS CAPSID PROTEIN
Molecular weight formula_weight	56993.6 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	4016

STRUCTURE OF TOBACCO RINGSPOT VIRUS

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

TOBACCO RINGSPOT VIRUS CAPSID 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

1a6c__assembly_1__model_1

1a6c__assembly_1__model_1 | I(q)

1a6c__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

CATH v4.4 (2 domains)

7. Citations (6)

STRUCTURE OF TOBACCO RINGSPOT VIRUS

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

TOBACCO RINGSPOT VIRUS CAPSID 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

1a6c__assembly_1__model_1

1a6c__assembly_1__model_1 | I(q)

1a6c__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

CATH v4.4 (2 domains)

7. Citations (6)