3WLL
Crystal structure of barley beta-D-glucan glucohydrolase isoenzyme EXO1 in complex with PEG400
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1IEQ |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 277 | 75mM HEPES-NaOH pH7.0 buffer, 1.2% PEG 400, 1.7M ammonium sulphate , VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.51 | 64.96 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 100.268 | α = 90 |
b = 100.268 | β = 90 |
c = 181.695 | γ = 90 |
Symmetry | |
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Space Group | P 43 21 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 315 | collimating mirror, double-crystal Si(111) monochromator | 2006-11-12 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | PHOTON FACTORY BEAMLINE BL-5A | 1.0 | Photon Factory | BL-5A |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | |||||||||
1 | 1.8 | 87.71 | 99.2 | 81336 | 81336 | 1 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 1.8 | 1.85 | 97.4 | 0.99 | 1.1 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 1IEQ | 1.8 | 48.33 | 81336 | 81336 | 4285 | 99.22 | 0.16205 | 0.16054 | 0.19051 | RANDOM | 30.342 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
0.33 | 0.33 | -0.66 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 39.296 |
r_dihedral_angle_4_deg | 16.656 |
r_dihedral_angle_3_deg | 13.283 |
r_dihedral_angle_1_deg | 5.924 |
r_scangle_it | 2.568 |
r_scbond_it | 1.654 |
r_angle_refined_deg | 1.253 |
r_mcangle_it | 0.883 |
r_mcbond_it | 0.555 |
r_symmetry_hbond_refined | 0.305 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4566 |
Nucleic Acid Atoms | |
Solvent Atoms | 883 |
Heterogen Atoms | 248 |
Software
Software | |
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Software Name | Purpose |
ADSC | data collection |
MOLREP | phasing |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |