4PHK
The Structural Basis of Differential Inhibition of Human Calpain by Indole and Phenyl alpha-Mercaptoacrylic Acids. The complex with (Z)-3-(4-chlorophenyl)-2-mercaptoacrylic acid
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 293 | PROTEIN WAS CRYSTALLIZED FROM 12% PEG6000, 20 MM CACL2, 50 MM CACODYLATE BUFFER, PH7.4 |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.82 | 56.36 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 49.54 | α = 90 |
b = 80.09 | β = 91.33 |
c = 56.89 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS 2M | 2013-09-23 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I03 | 0.9673 | Diamond | I03 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 2.05 | 80.09 | 91.8 | 0.062 | 10.8 | 3.4 | 87320 | 25589 |
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 | 2.05 | 2.1 | 70 | 0.603 | 2.3 | 2.6 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | 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 | THROUGHOUT | 2.05 | 80.09 | 24048 | 1289 | 90.71 | 0.23333 | 0.23073 | 0.27936 | RANDOM | 39.244 |
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] | |
-0.89 | -1.03 | 1.24 | -0.3 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 32.958 |
r_dihedral_angle_3_deg | 18.106 |
r_dihedral_angle_4_deg | 13.575 |
r_long_range_B_refined | 6.648 |
r_long_range_B_other | 6.613 |
r_dihedral_angle_1_deg | 6.143 |
r_scangle_other | 3.8 |
r_mcangle_it | 2.895 |
r_mcangle_other | 2.895 |
r_scbond_it | 2.471 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 2806 |
Nucleic Acid Atoms | |
Solvent Atoms | 140 |
Heterogen Atoms | 34 |
Software
Software | |
---|---|
Software Name | Purpose |
REFMAC | refinement |