3CAA
CLEAVED ANTICHYMOTRYPSIN A347R
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2CAA | PDB ENTRY 2CAA |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 5.6 | 10% PEG MONOMETHYLETHER 5000 0.2 M MAGNESIUM ACETATE 0.1 M SODIUM CITRATE PH 5.6 PROTEIN AT 3 MG/ML |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.75 | 55 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 74.12 | α = 90 |
b = 77.73 | β = 90 |
c = 79.49 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | ADSC QUANTUM | 1996-09-09 | M |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | CHESS BEAMLINE A1 | CHESS | A1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym 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 | 2.4 | 20 | 83.7 | 0.101 | 7.3 | 4.05 | 15560 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.4 | 2.49 | 85.6 | 0.399 | 3.4 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | DIFFERENCE FOURIER | THROUGHOUT | PDB ENTRY 2CAA | 2.4 | 20 | 2 | 14515 | 594 | 78.46 | 0.19 | 0.19 | 0.28 | RANDOM | 35.8 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 25.5 |
x_angle_deg | 2.11 |
x_improper_angle_d | 1.92 |
x_bond_d | 0.022 |
x_bond_d_na | |
x_bond_d_prot | |
x_angle_d | |
x_angle_d_na | |
x_angle_d_prot | |
x_angle_deg_na |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2933 |
Nucleic Acid Atoms | |
Solvent Atoms | 47 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
X-PLOR | model building |
X-PLOR | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
X-PLOR | phasing |