SAXSdb — 6bus

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

Regulatory protein E2

Bovine papillomavirus type 1

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
2	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	VE2_BPV1
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain 1； PDBConstruct 3–103； UniProt 310–410 Author chain 2； PDBConstruct 3–103； UniProt 310–410 Author chain 3； PDBConstruct 3–103； UniProt 310–410 Author chain 4； PDBConstruct 3–103； UniProt 310–410

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	6bus
Deposition date deposition_date	2017-12-11
Structure title title	Extended E2 DNA-binding domain of the Bovine Papillomavirus-1
Keywords keywords	Open reading frame, E2, BPV-1, DNA BINDING 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.

6bus__assembly_1__model_1

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

Download this curve (.dat)

6bus__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6bus__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	17.53 Å
Rg (electron density)	16.43 Å
Total Rg	17.45 Å
Atom count	1449
Residues	184
Excluded volume	25559 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6bus__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`6bus__assembly_2__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) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d6bus1_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.8 — Viral DNA-binding domain
Family Family family	d.58.8.1 — Viral DNA-binding domain

Domain ID domain_id	d6bus2_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.8 — Viral DNA-binding domain
Family Family family	d.58.8.1 — Viral DNA-binding domain

Domain ID domain_id	d6bus3_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.8 — Viral DNA-binding domain
Family Family family	d.58.8.1 — Viral DNA-binding domain

Domain ID domain_id	d6bus4_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.8 — Viral DNA-binding domain
Family Family family	d.58.8.1 — Viral DNA-binding domain

CATH v4.4 (4 domains)

Domain ID domain_id	6bus100
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	330 — RRM (RNA recognition motif) domain

Domain ID domain_id	6bus200
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	330 — RRM (RNA recognition motif) domain

Domain ID domain_id	6bus300
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	330 — RRM (RNA recognition motif) domain

Domain ID domain_id	6bus400
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	330 — RRM (RNA recognition motif) domain

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Unit-cell length a length_a	55.203 Å
Unit-cell length b length_b	55.203 Å
Unit-cell length c length_c	203.091 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 31 2 1
Space-group number int_tables_number	152
Crystal system crystal_system	—

Resolution resolution	1.900 Å
Low-resolution limit resolution_low	67.790 Å
R factor r_factor	0.2161
R_work r_work	0.2138
R_free r_free	0.2605

Description description	Regulatory protein E2
Molecular weight formula_weight	11577.2 kDa
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	1,2,3,4
Atom count atom_count	3118

Extended E2 DNA-binding domain of the Bovine Papillomavirus-1

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

Regulatory protein E2

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

6bus__assembly_1__model_1

6bus__assembly_1__model_1 | I(q)

6bus__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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	Bovine papillomavirus type 1
NCBI taxonomy ID ncbi_taxonomy_id	10559
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	197

Extended E2 DNA-binding domain of the Bovine Papillomavirus-1

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

Regulatory protein E2

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

6bus__assembly_1__model_1

6bus__assembly_1__model_1 | I(q)

6bus__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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)