SAXSdb — 4btg

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

MAJOR INNER PROTEIN P1

PSEUDOMONAS PHAGE PHI6

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 120	No other associated polymer	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 10	No other associated polymer	Consistent with protein count
4	Protein homooligomer	Homooligomer	Protein 12	No other associated polymer	Consistent with protein count
5	Protein homooligomer	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	P1_BPPH6
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–761； UniProt 2–761 Author chain B； PDBConstruct 2–761； UniProt 2–761

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	4btg
Deposition date deposition_date	2013-06-17
Structure title title	Coordinates of the bacteriophage phi6 capsid subunits (P1A and P1B) fitted into the cryoEM reconstruction of the procapsid at 4.4 A resolution
Keywords keywords	VIRUS, CYSTOVIRIDAE, PROCAPSID STRUCTURE, FLEXIBLE FITTING; VIRUS
Experimental Method method	ELECTRON MICROSCOPY

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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.

4btg__assembly_1__model_1

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

Download this curve (.dat)

4btg__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4btg__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)	177.10 Å
Total Rg	177.20 Å
Atom count	710400
Residues	91320
Excluded volume	12627000 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4btg__assembly_1__model_1`	120-MERIC （120）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`4btg__assembly_2__model_1`	dimeric （2）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
3	1	`4btg__assembly_3__model_1`	decameric （10）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
4	1	`4btg__assembly_4__model_1`	dodecameric （12）	Excluded	—	—
	Exclusion reason： Auxiliary symmetry representation; not a complete or representative biological assembly.
5	1	`4btg__assembly_5__model_1`	dimeric （2）	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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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	1

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	4.400 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	4.40 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	18326

Description description	MAJOR INNER PROTEIN P1
Molecular weight formula_weight	84163.7 kDa
Source method src_method	man
Copy count entity_count	2

Coordinates of the bacteriophage phi6 capsid subunits (P1A and P1B) fitted into the cryoEM reconstruction of the procapsid at 4.4 A resolution

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

MAJOR INNER PROTEIN P1

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

4btg__assembly_1__model_1

4btg__assembly_1__model_1 | I(q)

4btg__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

7. Citations (1)

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	11840

Source organism organism	PSEUDOMONAS PHAGE PHI6
NCBI taxonomy ID ncbi_taxonomy_id	10879
Host organism host_organism	ESCHERICHIA COLI

Coordinates of the bacteriophage phi6 capsid subunits (P1A and P1B) fitted into the cryoEM reconstruction of the procapsid at 4.4 A resolution

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

MAJOR INNER PROTEIN P1

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

4btg__assembly_1__model_1

4btg__assembly_1__model_1 | I(q)

4btg__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

7. Citations (1)