3L2L
X-ray Crystallographic Analysis of Pig Pancreatic Alpha-Amylase with Limit Dextrin and Oligosaccharide
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | EVAPORATION | 6.75 | 298 | 0.010 M cacodylate, 0.002 M calcium chloride, pH 6.75, EVAPORATION, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
4.34 | 71.67 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 70.59 | α = 90 |
b = 114.82 | β = 90 |
c = 118.78 | 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 | 298 | AREA DETECTOR | SDMS | 1992-09-02 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RU200 | 1.5418 |
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 | 2.11 | 14.01 | 82.6 | 0.052 | 10.93 | 47149 | 47147 | 23.25 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1 | 2.11 | 2.22 | 28.8 | 3.91 | 2315 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MIR | THROUGHOUT | 2.11 | 14.01 | 47147 | 47147 | 4749 | 84 | 0.11929 | 0.11929 | 0.11502 | 0.1572 | RANDOM | 19.7 |
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] | |
1.36 | -1.27 | -0.09 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.877 |
r_dihedral_angle_4_deg | 19.778 |
r_dihedral_angle_3_deg | 14.545 |
r_dihedral_angle_1_deg | 6.044 |
r_scangle_it | 5.443 |
r_scbond_it | 4.199 |
r_mcangle_it | 3.372 |
r_scangle_other | 2.658 |
r_mcbond_it | 2.322 |
r_mcangle_other | 1.889 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3909 |
Nucleic Acid Atoms | |
Solvent Atoms | 584 |
Heterogen Atoms | 126 |
Software
Software | |
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Software Name | Purpose |
SDMS | data collection |
REFMAC | refinement |
SDMS | data reduction |
SDMS | data scaling |