1gw9

Tri-iodide derivative of Xylose Isomerase from Streptomyces Rubiginosus

Method: X-RAY DIFFRACTION Dmax: 84.7 Å Quality: REASONABLE

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

XYLOSE ISOMERASE

OrganismNot specified

UniProt P24300

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–387 Not recorded CA CALCIUM ION × 8 LXC beta-L-xylopyranose × 8 IOD IODIDE ION × 116 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.5;1.8M AMMONIUM SULPHATE, 10MM TRIS-HCL AT PH7.5 AND THEN SOAKED IN AN EQUIVALENT SOLUTION WITH 50MM KI/50MM I2 AND 1.9M L-XYLOSE ADDED AS CRYO-PROTECTANT., pH 7.50 Resolution 1.55 Å R-free 0.188

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.

139 other PDB entries and 143 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name XYLA_STRRU
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–388; UniProt 1–387

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 1gw9

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1gw9
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id1gw9
Deposition date deposition_date2002-03-13
Structure title titleTri-iodide derivative of Xylose Isomerase from Streptomyces Rubiginosus
Keywords keywordsISOMERASE, PENTOSE SHUNT, XYLOSE METABOLISM, MAGNESIUM; ISOMERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.71
Radius of gyration Rg (electron density) rg_electron23.13
Forward intensity I(0) i048909700.00
Molecular weight molecular_weight46774.0 kDa
Excluded volume excluded_volume54297 ų
Envelope volume envelope_volume68927 ų
Hydration-shell volume shell_volume25122 ų
Envelope diameter envelope_diameter88.2
Shell Rg shell_rg29.70
Envelope Rg envelope_rg24.27
Shape Rg shape_rg23.30
Total Rg total_rg23.35
Total atoms total_atoms3072
Residues n_residues385
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 dmax84.7
Rg (real space) rg_real23.80
Rg uncertainty (real space) rg_real_error0.70
I(0) (real space) i0_real4.8910e+07
I(0) uncertainty (real space) i0_real_error6.6450e+05
Rg (reciprocal space) rg_reciprocal23.78
I(0) (reciprocal space) i0_reciprocal48910000.0000
Solution quality estimate total_estimate0.6444
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary26.5
Skewness Skewness skewness0.526
Kurtosis Kurtosis kurtosis0.081
Angular range angular_range— – 0.3350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4459000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.669; Stabil: 1.000; Sysdev: 0.154; Positv: 1.000; Valcen: 0.908; Smooth: 0.998

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1gw9a_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.15 — Xylose isomerase-like
Family Family familyc.1.15.3 — Xylose isomerase

CATH v4.4 (1 domains)

Domain ID domain_id1gw9A00
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily150 — Divalent-metal-dependent TIM barrel enzymes

8. Citations (1)

9. Files and Curves (10)