7RN7
Crystal structure of caspase-3 with inhibitor Ac-VD(Aly)VD-CHO
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2H65 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 293 | 16% PEG 6000, 5% glycerol, 100 mM sodium citrate pH 6.5, and 10 mM DTT |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.5 | 50.71 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 50.509 | α = 90 |
b = 68.041 | β = 90.608 |
c = 82.493 | γ = 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 | PIXEL | DECTRIS EIGER2 X 9M | 2021-04-18 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 17-ID | 1.0 | APS | 17-ID |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2.4 | 52.49 | 98.6 | 0.182 | 0.223 | 0.126 | 0.959 | 4.4 | 3 | 21724 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 2.4 | 2.53 | 98.5 | 0.518 | 0.64 | 0.37 | 0.712 | 2.8 |
Refinement
Statistics | |||||||||||||||||||
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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 | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 2H65 | 2.4 | 43.28 | 1.35 | 21694 | 1107 | 98.37 | 0.1911 | 0.1878 | 0.2515 | 30.12 |
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 |
f_dihedral_angle_d | 20.74 |
f_angle_d | 1.0777 |
f_chiral_restr | 0.0559 |
f_bond_d | 0.0083 |
f_plane_restr | 0.0061 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3788 |
Nucleic Acid Atoms | |
Solvent Atoms | 105 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
Aimless | data scaling |
PHENIX | refinement |
PDB_EXTRACT | data extraction |
AutoProcess | data reduction |
PHASER | phasing |
JDirector | data collection |