5IFT
STRUCTURE OF E298Q-BETA-GALACTOSIDASE FROM ASPERGILLUS NIGER IN COMPLEX WITH 3-b-Galactopyranosyl glucose
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6 | 291 | 24% (W/V) PEG 3350, 0.1M BIS-TRIS BUFFER PH 6.0 , 0.2M LITHIUM SULPHATE, then soacked in 30mM 3-O-beta-D-Galactopyranosyl-D-glucose |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.9 | 57.6 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 87.134 | α = 90 |
b = 111.641 | β = 90 |
c = 125.8 | γ = 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 | PIXEL | DECTRIS PILATUS3 6M | Kbmirrors | 2015-03-14 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ALBA BEAMLINE XALOC | 0.97872 | ALBA | XALOC |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | CC (Half) | 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 | 2.45 | 83.5 | 97.6 | 0.176 | 0.981 | 8.1 | 6.7 | 44772 |
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 | 2.45 | 2.54 | 100 | 0.528 | 3.6 | 6.8 |
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 | 5IFP | 2.45 | 83.5 | 42486 | 2187 | 97.47 | 0.15189 | 0.14973 | 0.1932 | RANDOM | 21.241 |
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] | |
1.53 | -0.12 | -1.41 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 38.347 |
r_dihedral_angle_4_deg | 14.954 |
r_dihedral_angle_3_deg | 12.244 |
r_dihedral_angle_1_deg | 6.659 |
r_long_range_B_refined | 3.43 |
r_long_range_B_other | 3.288 |
r_scangle_other | 1.947 |
r_mcangle_it | 1.456 |
r_mcangle_other | 1.456 |
r_angle_refined_deg | 1.338 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 7483 |
Nucleic Acid Atoms | |
Solvent Atoms | 604 |
Heterogen Atoms | 352 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
XDS | data reduction |
Aimless | data scaling |
MOLREP | phasing |