2JKA
Native structure of a family 97 alpha-glucosidase from Bacteroides thetaiotaomicron
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 18-22% POLYETHYLENE GLYCOL 3350, 0.02 M SODIUM/POTASSIUM PHOSPHATE |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.9 | 58 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 75.629 | ¦Á = 90 |
b = 111.554 | ¦Â = 100.85 |
c = 102.442 | ¦Ã = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
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 CCD | 2007-02-23 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID23-1 | ESRF | ID23-1 |
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 | 15 | 91.3 | 0.08 | 9 | 2.3 | 120776 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1.97 | 56.5 | 0.28 | 2.3 | 1.7 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | SAD | THROUGHOUT | NONE | 1.9 | 14.94 | 113961 | 6039 | 91.6 | 0.157 | 0.154 | 0.203 | RANDOM | 19.93 |
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] | |
0.51 | -1.27 | 0.53 | -1.52 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.339 |
r_dihedral_angle_4_deg | 13.774 |
r_dihedral_angle_3_deg | 13.156 |
r_dihedral_angle_1_deg | 6.508 |
r_scangle_it | 3.234 |
r_scbond_it | 2.144 |
r_angle_refined_deg | 1.41 |
r_mcangle_it | 1.167 |
r_mcbond_it | 0.685 |
r_chiral_restr | 0.103 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 11051 |
Nucleic Acid Atoms | |
Solvent Atoms | 1743 |
Heterogen Atoms | 34 |
Software
Software | |
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Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
SOLVE | phasing |
RESOLVE | phasing |
REFMAC | refinement |