5IDI
Structure of beta glucosidase 1A from Thermotoga neapolitana, mutant E349A
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2CBV |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 5 | 288 | Protein at 12 mg/ml in 20 mM citrate phosphate buffer, pH 5.6. Hanging drops consisting of 1 microlitre of protein solution and 2 microlitres of reservoir solution (18-23% w/v PEG 6000, 0.2 M sodium chloride, 0.1 M sodium acetate, pH 5.0) equilibrated against 1 ml of reservoir solution. Rod-shaped crystals of approximate dimensions 0.3 x 0.2 x 0.3 mm grew after 8-10 days. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.47 | 50.15 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 67.277 | ¦Á = 90 |
b = 98.726 | ¦Â = 90 |
c = 154.756 | ¦Ã = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | MARRESEARCH | 2011-04-12 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | MAX II BEAMLINE I911-2 | 1.0402 | MAX II | I911-2 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (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 | 1.9 | 30.1 | 99.1 | 0.084 | 12.6 | 5 | 81717 |
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 | 1.9 | 1.93 | 85.4 | 1.172 | 1.9 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | 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 | 2CBV | 1.9 | 30 | 77455 | 4096 | 98.85 | 0.17082 | 0.16857 | 0.2147 | RANDOM | 27.434 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
1.04 | -0.42 | -0.62 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 36.831 |
r_dihedral_angle_4_deg | 21.985 |
r_dihedral_angle_3_deg | 14.176 |
r_dihedral_angle_1_deg | 6.696 |
r_long_range_B_refined | 4.992 |
r_long_range_B_other | 4.947 |
r_scangle_other | 3.433 |
r_angle_refined_deg | 2.24 |
r_scbond_it | 2.202 |
r_scbond_other | 2.202 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 7300 |
Nucleic Acid Atoms | |
Solvent Atoms | 429 |
Heterogen Atoms | 12 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
XDS | data reduction |
XSCALE | data scaling |
PHASER | phasing |