REFINED STRUCTURE OF ALPHA-LYTIC PROTEASE AT 1.7 ANGSTROMS RESOLUTION. ANALYSIS OF HYDROGEN BONDING AND SOLVENT STRUCTURE
X-RAY DIFFRACTION
Crystallization
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.55 | 51.7 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 66.21 | α = 90 |
| b = 66.21 | β = 90 |
| c = 80.01 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 32 2 1 |
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (I) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work (Depositor) | R-Free (Depositor) | Mean Isotropic B | ||||||||||
| X-RAY DIFFRACTION | 1.7 | 8 | 2 | 0.131 | |||||||||||||||
| 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 | |
|---|---|
| Key | Refinement Restraint Deviation |
| o_angle_d | 0.03 |
| o_bond_d | 0.019 |
| o_bond_d_na | |
| o_bond_d_prot | |
| o_angle_d_na | |
| o_angle_d_prot | |
| o_angle_deg | |
| o_angle_deg_na | |
| o_angle_deg_prot | |
| o_dihedral_angle_d | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1391 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 156 |
| Heterogen Atoms | 10 |
