OCTAHEDRAL COORDINATION AT THE HIGH AFFINITY METAL SITE IN ENOLASE; CRYSTALLOGRAPHIC ANALYSIS OF THE MG++-ENZYME FROM YEAST AT 1.9 ANGSTROMS RESOLUTION
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | CRYSTALS WERE GROWN FROM POLYETHYLENE GLYCOL, KCL, AT PH 8.1. CRYSTALLIZED IN THE PRESENCE OF 0.5 MILLIMOLAR MG2+ | |||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.45 | 49.78 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 72.5 | α = 90 |
| b = 73.2 | β = 104.4 |
| c = 89.1 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 1 21 1 |
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work (Depositor) | R-Free (Depositor) | Mean Isotropic B | |||||||||
| X-RAY DIFFRACTION | 1.9 | 50 | 53410 | 0.19 | |||||||||||||||
| 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 |
| p_angle_deg | 2.2 |
| p_bond_d | |
| p_angle_d | |
| p_planar_d | |
| p_hb_or_metal_coord | |
| p_mcbond_it | |
| p_mcangle_it | |
| p_scbond_it | |
| p_scangle_it | |
| p_plane_restr | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 6627 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 507 |
| Heterogen Atoms | 4 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| X-PLOR | model building |
| TNT | refinement |
| CHAIN | refinement |
| X-PLOR | refinement |
| X-PLOR | phasing |
