SAXSdb — 6dwb

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

Protein PrgI

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	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	PRGI_SALTY
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–80； UniProt 1–80 Author chain B； PDBConstruct 1–80； UniProt 1–80 Author chain C； PDBConstruct 1–80； UniProt 1–80 Author chain D； PDBConstruct 1–80； UniProt 1–80 Author chain E； PDBConstruct 1–80； UniProt 1–80 Author chain F； PDBConstruct 1–80； UniProt 1–80 Author chain G； PDBConstruct 1–80； UniProt 1–80 Author chain H； PDBConstruct 1–80； UniProt 1–80 Author chain I； PDBConstruct 1–80； UniProt 1–80 Author chain J； PDBConstruct 1–80； UniProt 1–80 Author chain K； PDBConstruct 1–80； UniProt 1–80 Author chain L； PDBConstruct 1–80； UniProt 1–80 Author chain M； PDBConstruct 1–80； UniProt 1–80 Author chain N； PDBConstruct 1–80； UniProt 1–80 Author chain O； PDBConstruct 1–80； UniProt 1–80 Author chain P； PDBConstruct 1–80； UniProt 1–80 Author chain Q； PDBConstruct 1–80； UniProt 1–80 Author chain R； PDBConstruct 1–80； UniProt 1–80 Author chain S； PDBConstruct 1–80； UniProt 1–80 Author chain T； PDBConstruct 1–80； UniProt 1–80 Author chain U； PDBConstruct 1–80； UniProt 1–80 Author chain V； PDBConstruct 1–80； UniProt 1–80 Author chain W； PDBConstruct 1–80； UniProt 1–80 Author chain X； PDBConstruct 1–80； UniProt 1–80 Author chain Y； PDBConstruct 1–80； UniProt 1–80 Author chain Z； PDBConstruct 1–80； UniProt 1–80 Author chain a； PDBConstruct 1–80； UniProt 1–80 Author chain b； PDBConstruct 1–80； UniProt 1–80 Author chain c； PDBConstruct 1–80； UniProt 1–80 Author chain d； PDBConstruct 1–80； UniProt 1–80

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	6dwb
Deposition date deposition_date	2018-06-26
Structure title title	Structure of the Salmonella SPI-1 type III secretion injectisome needle filament
Keywords keywords	Type III secretion system, MEMBRANE PROTEIN; MEMBRANE PROTEIN
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.

6dwb__assembly_1__model_1

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

Download this curve (.dat)

6dwb__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6dwb__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	46.92 Å
Rg (electron density)	47.40 Å
Total Rg	47.50 Å
Atom count	18360
Residues	2340
Excluded volume	325540 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6dwb__assembly_1__model_1`	30-meric （30）	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 (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	—

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

Resolution resolution	3.30 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	53000

Description description	Protein PrgI
Molecular weight formula_weight	8864.9 kDa
Source method src_method	nat
Copy count entity_count	30

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,a,b,c,d
Atom count atom_count	18360

Structure of the Salmonella SPI-1 type III secretion injectisome needle filament

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

Protein PrgI

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

6dwb__assembly_1__model_1

6dwb__assembly_1__model_1 | I(q)

6dwb__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

7. Citations (1)

Structure of the Salmonella SPI-1 type III secretion injectisome needle filament

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

Protein PrgI

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

6dwb__assembly_1__model_1

6dwb__assembly_1__model_1 | I(q)

6dwb__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

7. Citations (1)