9dt4

Crystal structure of the engineered sulfonylurea repressor CsR (L4.2-20), apo form

Method: X-RAY DIFFRACTION Dmax: 75.5 Å Quality: GOOD

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

Sulfonylurea repressor CsR (L4.2-20)

Escherichia coli

UniProt P04483

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–207 Chain B; UniProt 1–207 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;295 K;0.2 M Sodium acetate 0.1 M TRIS hydrochloride pH 8.5 30% w/v Polyethylene glycol 4,000 Resolution 2.40 Å R-free 0.241

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

17 other PDB entries and 24 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TETR2_ECOLX
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–207; UniProt 1–207 Author chain B; PDBConstruct 1–207; UniProt 1–207

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.

SAXS scattering curve SAXS Profile

SAXS profile for 9dt4

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9dt4
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9dt4
Deposition date deposition_date2024-09-30
最后修订 last_revision2025-10-08
Structure title titleCrystal structure of the engineered sulfonylurea repressor CsR (L4.2-20), apo form
Keywords keywordsengineered, ligand, repressor, transcription, DNA BINDING PROTEIN; DNA BINDING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier23.43
Radius of gyration Rg (electron density) rg_electron22.30
Forward intensity I(0) i033788400.00
Molecular weight molecular_weight45351.0 kDa
Excluded volume excluded_volume57155 ų
Envelope volume envelope_volume69279 ų
Hydration-shell volume shell_volume25824 ų
Envelope diameter envelope_diameter78.9
Shell Rg shell_rg29.48
Envelope Rg envelope_rg22.46
Shape Rg shape_rg22.32
Total Rg total_rg23.16
Total atoms total_atoms3201
Residues n_residues399
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax75.5
Rg (real space) rg_real23.32
Rg uncertainty (real space) rg_real_error0.41
I(0) (real space) i0_real3.3790e+07
I(0) uncertainty (real space) i0_real_error4.6610e+05
Rg (reciprocal space) rg_reciprocal23.35
I(0) (reciprocal space) i0_reciprocal33790000.0000
Solution quality estimate total_estimate0.8962
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary29.0
Skewness Skewness skewness0.198
Kurtosis Kurtosis kurtosis-0.424
Angular range angular_range— – 0.3400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha7948000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.884; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.997

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)