SAXSdb — 3fd9

▼

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

Uncharacterized protein

Pseudomonas aeruginosa UCBPP-PA14

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q02KK5_PSEAB
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–256； UniProt 22–276 Author chain B； PDBConstruct 2–256； UniProt 22–276 Author chain C； PDBConstruct 2–256； UniProt 22–276

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	3fd9
Deposition date deposition_date	2008-11-25
Structure title title	Crystal Structure of the transcriptional anti-activator ExsD from Pseudomonas aeruginosa
Keywords keywords	Anti-activator, Transcription regulation, Pseudomonas, repressor, type III secretion, UNKNOWN FUNCTION; UNKNOWN FUNCTION
Experimental Method method	X-RAY DIFFRACTION

▼

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.

3fd9__assembly_1__model_1

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

Download this curve (.dat)

3fd9__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3fd9__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	29.36 Å
Rg (electron density)	28.14 Å
Total Rg	28.87 Å
Atom count	5754
Residues	709
Excluded volume	102030 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3fd9__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (2)

▼

6. Fold Classification (SCOP + CATH) 9 domains

CATH v4.4 (9 domains)

Domain ID domain_id	3fd9A01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily	520 — ExsD N-terminal domain-like

Domain ID domain_id	3fd9A02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1270 — Substrate Binding Domain Of Dnak; Chain:A; Domain 2
Homologous superfamily homologous superfamily	190 —

Domain ID domain_id	3fd9A03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	1060 — ESAT-6-like

Domain ID domain_id	3fd9B01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily	520 — ExsD N-terminal domain-like

Domain ID domain_id	3fd9B02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1270 — Substrate Binding Domain Of Dnak; Chain:A; Domain 2
Homologous superfamily homologous superfamily	190 —

Domain ID domain_id	3fd9B03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	1060 — ESAT-6-like

Domain ID domain_id	3fd9C01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily	520 — ExsD N-terminal domain-like

Domain ID domain_id	3fd9C02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1270 — Substrate Binding Domain Of Dnak; Chain:A; Domain 2
Homologous superfamily homologous superfamily	190 —

Domain ID domain_id	3fd9C03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	1060 — ESAT-6-like

▶

Unit-cell length a length_a	144.755 Å
Unit-cell length b length_b	69.347 Å
Unit-cell length c length_c	86.331 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	12

Space group space_group	P 21 21 2
Space-group number int_tables_number	18
Crystal system crystal_system	—

Resolution resolution	2.600 Å
Low-resolution limit resolution_low	29.400 Å
R factor r_factor	0.2150
R_work r_work	0.2130
R_free r_free	0.2630

Description description	Uncharacterized protein
Molecular weight formula_weight	29107.6 kDa
Source method src_method	man
Copy count entity_count	3

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	5873

Crystal Structure of the transcriptional anti-activator ExsD from Pseudomonas aeruginosa

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

Uncharacterized 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

3fd9__assembly_1__model_1

3fd9__assembly_1__model_1 | I(q)

3fd9__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) 9 domains

CATH v4.4 (9 domains)

7. Citations (1)

Source organism organism	Pseudomonas aeruginosa UCBPP-PA14
NCBI taxonomy ID ncbi_taxonomy_id	208963
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	119

Crystal Structure of the transcriptional anti-activator ExsD from Pseudomonas aeruginosa

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

Uncharacterized 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

3fd9__assembly_1__model_1

3fd9__assembly_1__model_1 | I(q)

3fd9__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) 9 domains

CATH v4.4 (9 domains)

7. Citations (1)