SAXSdb — 2j85

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

STIV B116

SULFOLOBUS TURRETED ICOSAHEDRAL VIRUS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q6Q0K9_9VIRU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–116； UniProt 1–116 Author chain B； PDBConstruct 1–116； UniProt 1–116

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	2j85
Deposition date deposition_date	2006-10-19
Structure title title	B116 of Sulfolobus turreted icosahedral virus (STIV)
Keywords keywords	;VIRAL PROTEIN, ARCHAEAL VIRUS, CRENARCHAEAL VIRUS, B116, STIV, ARCHAEA, SULFOLOBUS, CRENARCHAEA, SULFOLOBUS TURRETED ICOSAHEDRAL VIRUS, HYPOTHETICAL 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.

2j85__assembly_1__model_1

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

Download this curve (.dat)

2j85__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2j85__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	20.53 Å
Rg (electron density)	19.47 Å
Total Rg	20.17 Å
Atom count	1878
Residues	227
Excluded volume	33817 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2j85__assembly_1__model_1`	dimeric （2）	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) 6 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d2j85a1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.321 — STIV B116-like
Superfamily Superfamily superfamily	d.321.1 — STIV B116-like
Family Family family	d.321.1.1 — STIV B116-like

Domain ID domain_id	d2j85a2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d2j85b2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.321 — STIV B116-like
Superfamily Superfamily superfamily	d.321.1 — STIV B116-like
Family Family family	d.321.1.1 — STIV B116-like

Domain ID domain_id	d2j85b3
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (2 domains)

Domain ID domain_id	2j85A00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	11170 — Uncharacterised protein PF08960, DUF1874

Domain ID domain_id	2j85B00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	11170 — Uncharacterised protein PF08960, DUF1874

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Unit-cell length a length_a	48.573 Å
Unit-cell length b length_b	83.317 Å
Unit-cell length c length_c	89.501 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	8

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.390 Å
Low-resolution limit resolution_low	29.810 Å
R factor r_factor	0.2100
R_work r_work	0.2080
R_free r_free	0.2400

Description description	STIV B116
Molecular weight formula_weight	14409.7 kDa
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	1950

B116 of Sulfolobus turreted icosahedral virus (STIV)

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

STIV B116

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

2j85__assembly_1__model_1

2j85__assembly_1__model_1 | I(q)

2j85__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) 6 domains

SCOP 2.08 (4 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Source organism organism	SULFOLOBUS TURRETED ICOSAHEDRAL VIRUS
Common name common_name	STIV
NCBI taxonomy ID ncbi_taxonomy_id	269145
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	72

B116 of Sulfolobus turreted icosahedral virus (STIV)

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

STIV B116

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

2j85__assembly_1__model_1

2j85__assembly_1__model_1 | I(q)

2j85__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) 6 domains

SCOP 2.08 (4 domains)

CATH v4.4 (2 domains)

7. Citations (1)