7jqw

The external aldimine crystal structure of Salmonella typhimurium Tryptophan Synthase mutant beta-S377A in complex with cesium ion at the metal coordination site. The single beta-Q114 rotamer conformation allows a hydrogen bond to form with the PLP oxygen at the position 3 in the ring

Method: X-RAY DIFFRACTION Dmax: 93.4 Å Quality: GOOD

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

Tryptophan synthase alpha chain

Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)

UniProt P00929

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–268 Not recorded Tryptophan synthase beta chain × 1 (P0A2K1) DMS DIMETHYL SULFOXIDE × 18 2AF 2-AMINOPHENOL × 2 CL CHLORIDE ION × 12 KOU (E)-N-({3-hydroxy-2-methyl-5-[(phosphonooxy)methyl]pyridin-4-yl}methylidene)-L-serine × 1 EDO 1,2-ETHANEDIOL × 1 SER SERINE × 1 CS CESIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8;298 K;50 mM Bicine-CsOH, 10% PEG 8,000, 4 mM Spermine, pH 8.0 Resolution 1.70 Å R-free 0.230

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.

112 other PDB entries and 115 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TRPA_SALTY
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–268; UniProt 1–268

Tryptophan synthase beta chain

Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)

UniProt P0A2K1

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1–397 Mutation:S377A Tryptophan synthase alpha chain × 1 (P00929) DMS DIMETHYL SULFOXIDE × 18 2AF 2-AMINOPHENOL × 2 CL CHLORIDE ION × 12 KOU (E)-N-({3-hydroxy-2-methyl-5-[(phosphonooxy)methyl]pyridin-4-yl}methylidene)-L-serine × 1 EDO 1,2-ETHANEDIOL × 1 SER SERINE × 1 CS CESIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8;298 K;50 mM Bicine-CsOH, 10% PEG 8,000, 4 mM Spermine, pH 8.0 Resolution 1.70 Å R-free 0.230

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.

119 other PDB entries and 122 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TRPB_SALTY
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–397; UniProt 1–397

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 7jqw

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7jqw
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7jqw
Deposition date deposition_date2020-08-11
Structure title titleThe external aldimine crystal structure of Salmonella typhimurium Tryptophan Synthase mutant beta-S377A in complex with cesium ion at the metal coordination site. The single beta-Q114 rotamer conformation allows a hydrogen bond to form with the PLP oxygen at the position 3 in the ring
Keywords keywordsLYASE, inhibitor complex, LYASE-LYASE INHIBITOR complex; LYASE/LYASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier27.49
Radius of gyration Rg (electron density) rg_electron26.71
Forward intensity I(0) i085877700.00
Molecular weight molecular_weight72180.0 kDa
Excluded volume excluded_volume89881 ų
Envelope volume envelope_volume103020 ų
Hydration-shell volume shell_volume32372 ų
Envelope diameter envelope_diameter99.3
Shell Rg shell_rg34.08
Envelope Rg envelope_rg27.04
Shape Rg shape_rg26.68
Total Rg total_rg27.50
Total atoms total_atoms5010
Residues n_residues648
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 dmax93.4
Rg (real space) rg_real27.57
Rg uncertainty (real space) rg_real_error0.65
I(0) (real space) i0_real8.5880e+07
I(0) uncertainty (real space) i0_real_error1.2440e+06
Rg (reciprocal space) rg_reciprocal27.55
I(0) (reciprocal space) i0_reciprocal85880000.0000
Solution quality estimate total_estimate0.8696
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary29.0
Skewness Skewness skewness0.468
Kurtosis Kurtosis kurtosis-0.209
Angular range angular_range— – 0.2900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha20480000.0000
Real-space data points n_real_points59
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.780; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.979; Smooth: 0.981

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (10)

8. Citations (1)

9. Files and Curves (10)