6xnc

Salmonella typhimurium tryptophan synthase complexed with L-tryptophan and D-glycerol-3-phosphate

Method: X-RAY DIFFRACTION Dmax: 107.5 Å Quality: REASONABLE

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

Tryptophan synthase alpha chain

Salmonella typhimurium

UniProt A0A0D6FWC1

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–268 Not recorded Tryptophan synthase beta chain × 2 (P0A2K1) DMS DIMETHYL SULFOXIDE × 56 1GP SN-GLYCEROL-1-PHOSPHATE × 2 NA SODIUM ION × 2 PLP PYRIDOXAL-5'-PHOSPHATE × 2 TRP TRYPTOPHAN × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;0.05 M Bicine-Na, pH 7.8, 1 mM EDTA, 1 mM DTT, 0.1 mM PLP, 1 mM spermine tetrahydrochloride, 10-12% PEG 3350, 6-10% glycerol Resolution 2.11 Å R-free 0.213

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.

18 other PDB entries and 18 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A0A0D6FWC1_SALTM
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–268; UniProt 1–268

Tryptophan synthase beta chain

Salmonella enterica subsp. enterica serovar Typhimurium

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain B; UniProt 1–397 Not recorded Tryptophan synthase alpha chain × 2 (A0A0D6FWC1) DMS DIMETHYL SULFOXIDE × 56 1GP SN-GLYCEROL-1-PHOSPHATE × 2 NA SODIUM ION × 2 PLP PYRIDOXAL-5'-PHOSPHATE × 2 TRP TRYPTOPHAN × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;0.05 M Bicine-Na, pH 7.8, 1 mM EDTA, 1 mM DTT, 0.1 mM PLP, 1 mM spermine tetrahydrochloride, 10-12% PEG 3350, 6-10% glycerol Resolution 2.11 Å R-free 0.213

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 6xnc

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6xnc
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6xnc
Deposition date deposition_date2020-07-02
Structure title titleSalmonella typhimurium tryptophan synthase complexed with L-tryptophan and D-glycerol-3-phosphate
Keywords keywordsmulti-enzyme complex, allosteric enzyme product complex, LYASE; LYASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier27.42
Radius of gyration Rg (electron density) rg_electron26.57
Forward intensity I(0) i090678600.00
Molecular weight molecular_weight74080.0 kDa
Excluded volume excluded_volume92422 ų
Envelope volume envelope_volume106430 ų
Hydration-shell volume shell_volume33355 ų
Envelope diameter envelope_diameter96.6
Shell Rg shell_rg34.20
Envelope Rg envelope_rg26.89
Shape Rg shape_rg26.55
Total Rg total_rg27.37
Total atoms total_atoms5163
Residues n_residues663
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 dmax107.5
Rg (real space) rg_real29.29
Rg uncertainty (real space) rg_real_error0.50
I(0) (real space) i0_real9.1700e+07
I(0) uncertainty (real space) i0_real_error1.3210e+06
Rg (reciprocal space) rg_reciprocal27.46
I(0) (reciprocal space) i0_reciprocal90680000.0000
Solution quality estimate total_estimate0.5907
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary29.7
Skewness Skewness skewness0.711
Kurtosis Kurtosis kurtosis0.347
Angular range angular_range— – 0.2900 −1
Current regularization parameter α current_alpha2.8480
Highest regularization parameter α highest_alpha33630000.0000
Real-space data points n_real_points59
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.524; Stabil: 0.839; Sysdev: 0.000; Positv: 1.000; Valcen: 0.803; Smooth: 0.826

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (8)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd6xnca_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.2 — Ribulose-phoshate binding barrel
Family Family familyc.1.2.4 — Tryptophan biosynthesis enzymes
Domain ID domain_idd6xncb_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.79 — Tryptophan synthase beta subunit-like PLP-dependent enzymes
Superfamily Superfamily superfamilyc.79.1 — Tryptophan synthase beta subunit-like PLP-dependent enzymes
Family Family familyc.79.1.1 — Tryptophan synthase beta subunit-like PLP-dependent enzymes

8. Citations (1)

9. Files and Curves (10)