8eqq

Crystal structure of E.coli DsbA mutant E37A

Method: X-RAY DIFFRACTION Dmax: 103.8 Å Quality: EXCELLENT

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

Thiol:disulfide interchange protein DsbA

Escherichia coli K-12

UniProt P0AEG4

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 20–208 Mutation:E37A FLC CITRATE ANION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;15-20% PEG8000, 0.1M phosphate-citrate, pH 3.8-4.4, 0.2M NaCl Resolution 2.13 Å R-free 0.231
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 20–208 Mutation:E37A FLC CITRATE ANION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;15-20% PEG8000, 0.1M phosphate-citrate, pH 3.8-4.4, 0.2M NaCl Resolution 2.13 Å R-free 0.231
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 20–208 Mutation:E37A No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;15-20% PEG8000, 0.1M phosphate-citrate, pH 3.8-4.4, 0.2M NaCl Resolution 2.13 Å R-free 0.231
4 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain D; UniProt 20–208 Mutation:E37A No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;15-20% PEG8000, 0.1M phosphate-citrate, pH 3.8-4.4, 0.2M NaCl Resolution 2.13 Å R-free 0.231

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.

75 other PDB entries and 149 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DSBA_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–189; UniProt 20–208 Author chain B; PDBConstruct 1–189; UniProt 20–208 Author chain C; PDBConstruct 1–189; UniProt 20–208 Author chain D; PDBConstruct 1–189; UniProt 20–208

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 8eqq

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8eqq
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8eqq
Deposition date deposition_date2022-10-09
Structure title titleCrystal structure of E.coli DsbA mutant E37A
Keywords keywordsDsbA mutant, thioredoxin-family protein, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier32.96
Radius of gyration Rg (electron density) rg_electron32.11
Forward intensity I(0) i0108264000.00
Molecular weight molecular_weight84078.0 kDa
Excluded volume excluded_volume105660 ų
Envelope volume envelope_volume137600 ų
Hydration-shell volume shell_volume36402 ų
Envelope diameter envelope_diameter104.1
Shell Rg shell_rg38.43
Envelope Rg envelope_rg31.57
Shape Rg shape_rg32.11
Total Rg total_rg32.67
Total atoms total_atoms5932
Residues n_residues752
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 dmax103.8
Rg (real space) rg_real32.81
Rg uncertainty (real space) rg_real_error0.71
I(0) (real space) i0_real1.0830e+08
I(0) uncertainty (real space) i0_real_error1.6390e+06
Rg (reciprocal space) rg_reciprocal32.88
I(0) (reciprocal space) i0_reciprocal108300000.0000
Solution quality estimate total_estimate0.9096
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks0
Primary peak position r_peak_primary
Skewness Skewness skewness0.107
Kurtosis Kurtosis kurtosis-0.643
Angular range angular_range— – 0.2400 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha14650000.0000
Real-space data points n_real_points49
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.952; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.967

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)