1m83

Crystal Structure of Tryptophanyl-tRNA Synthetase Complexed with ATP in a Closed, Pre-transition State Conformation

Method: X-RAY DIFFRACTION Dmax: 78.1 Å Quality: GOOD

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

Tryptophan-tRNA ligase

Geobacillus stearothermophilus

UniProt P00953

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 1–328 Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 GOL GLYCEROL × 6 X-RAY DIFFRACTION X-ray crystallization conditions:MICRODIALYSIS;pH 7.5;310 K;sodium citrate, sodium atp, magnesium chloride, pH 7.5, MICRODIALYSIS, temperature 310K Resolution 2.20 Å R-free 0.252

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.

14 other PDB entries and 32 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SYW_BACST
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–328; UniProt 1–328

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 1m83

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1m83
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1m83
Deposition date deposition_date2002-07-24
Structure title titleCrystal Structure of Tryptophanyl-tRNA Synthetase Complexed with ATP in a Closed, Pre-transition State Conformation
Keywords keywordsAminoacyl-tRNA Synthetase, ATP binding site, Rossmann Fold, LIGASE; LIGASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier21.86
Radius of gyration Rg (electron density) rg_electron20.87
Forward intensity I(0) i025209900.00
Molecular weight molecular_weight37982.0 kDa
Excluded volume excluded_volume47457 ų
Envelope volume envelope_volume54883 ų
Hydration-shell volume shell_volume22222 ų
Envelope diameter envelope_diameter79.7
Shell Rg shell_rg27.37
Envelope Rg envelope_rg21.25
Shape Rg shape_rg20.88
Total Rg total_rg21.68
Total atoms total_atoms2663
Residues n_residues328
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 dmax78.1
Rg (real space) rg_real21.86
Rg uncertainty (real space) rg_real_error0.58
I(0) (real space) i0_real2.5210e+07
I(0) uncertainty (real space) i0_real_error3.4420e+05
Rg (reciprocal space) rg_reciprocal21.86
I(0) (reciprocal space) i0_reciprocal25210000.0000
Solution quality estimate total_estimate0.8413
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.5
Skewness Skewness skewness0.415
Kurtosis Kurtosis kurtosis-0.068
Angular range angular_range— – 0.3650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6241000.0000
Real-space data points n_real_points68
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.692; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.921; Smooth: 0.936

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1m83a_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.26 — Adenine nucleotide alpha hydrolase-like
Superfamily Superfamily superfamilyc.26.1 — Nucleotidylyl transferase
Family Family familyc.26.1.1 — Class I aminoacyl-tRNA synthetases (RS), catalytic domain

CATH v4.4 (2 domains)

Domain ID domain_id1m83A01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily620 — HUPs
Domain ID domain_id1m83A02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology240 — Tyrosyl-Transfer RNA Synthetase
Homologous superfamily homologous superfamily10 — Tyrosyl-Transfer RNA Synthetase

8. Citations (1)

9. Files and Curves (10)