SAXSdb — 3p9t

▼

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

Repressor

Stenotrophomonas maltophilia

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8KLP4_STEMA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–219； UniProt 1–219 Author chain B； PDBConstruct 1–219； UniProt 1–219

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	3p9t
Deposition date deposition_date	2010-10-18
Structure title title	SmeT-Triclosan complex
Keywords keywords	Transcription Repressor, antibacterial, antifungal, TRANSCRIPTION-ANTIBIOTIC complex; TRANSCRIPTION/ANTIBIOTIC
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.

3p9t__assembly_1__model_1

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

Download this curve (.dat)

3p9t__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3p9t__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.05 Å
Rg (electron density)	23.02 Å
Total Rg	23.63 Å
Atom count	3351
Residues	422
Excluded volume	59344 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3p9t__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	Repressor
Molecular weight formula_weight	24646.4 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	3625

MARKTKEDTQATREGILDAAEACFHEHGVARTTLEMIGARAGYTRGAVYWHFKNKSEVLAAIVERVHLPFMQELERTSTDQRDTPVHDLRAVMIHSFIELSEDERLRKTMEIMLRSDASANTRVLTEMQQAGFRDALDRMERALRRARDLGQLREGADPKIAARMLHATVLGVLHGAMVEPELMDLKRDGMLALDMTLAAYVKDGVFVPGTVPEPLPEA

Source Source

Source organism organism	Stenotrophomonas maltophilia
Common name common_name	Pseudomonas maltophilia
NCBI taxonomy ID ncbi_taxonomy_id	40324
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	TRICLOSAN
Molecular weight formula_weight	289.5 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	225

▼

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	3p9tA00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	357 — Tetracycline Repressor; domain 2
Homologous superfamily homologous superfamily	10 — Tetracycline Repressor, domain 2

Domain ID domain_id	3p9tB00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	357 — Tetracycline Repressor; domain 2
Homologous superfamily homologous superfamily	10 — Tetracycline Repressor, domain 2

▶

Unit-cell length a length_a	56.216 Å
Unit-cell length b length_b	59.310 Å
Unit-cell length c length_c	84.583 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	102.94 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	2.020 Å
Low-resolution limit resolution_low	82.440 Å
R factor r_factor	0.2071
R_work r_work	0.2047
R_free r_free	0.2510

SmeT-Triclosan complex

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

Repressor

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

3p9t__assembly_1__model_1

3p9t__assembly_1__model_1 | I(q)

3p9t__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)

SmeT-Triclosan complex

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

Repressor

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

3p9t__assembly_1__model_1

3p9t__assembly_1__model_1 | I(q)

3p9t__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)