4BI6
CRYSTAL STRUCTURE OF A TRIPLE MUTANT (A198V, C202A AND C222N) OF TRIOSEPHOSPHATE ISOMERASE FROM GIARDIA LAMBLIA. COMPLEXED WITH 2- PHOSPHOGLYCOLIC ACID
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 2DP3 | PDB ENTRY 2DP3 |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 5.6 | PROTEIN WAS CRYSTALLYZED FROM 0.5 M SODIUM CHLORIDE, 0.1 M SODIUM CITRATE TRIBASIC DIHYDRATE PH 5.6, 2 % V/V ETHYLENE IMINE POLYMER. | ||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.98 | 58.71 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 55.578 | α = 90 |
| b = 100.474 | β = 90 |
| c = 118.147 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | I 2 2 2 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 90 | CCD | MARRESEARCH | MIRRORS | 2009-11-05 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 21-ID-F | APS | 21-ID-F | |
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 | 1.45 | 37.55 | 99.9 | 0.09 | 3.7 | 6.8 | 58919 | ||||||||||||
| 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 | 1.45 | 1.53 | 99.9 | 0.35 | 2.1 | 6.8 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 2DP3 | 1.45 | 37.55 | 55823 | 2979 | 99.8 | 0.19068 | 0.18982 | 0.20687 | RANDOM | 18.761 | ||||||
| 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 |
| r_dihedral_angle_2_deg | 32.21 |
| r_dihedral_angle_4_deg | 17.67 |
| r_dihedral_angle_3_deg | 11.217 |
| r_scangle_it | 6.135 |
| r_dihedral_angle_1_deg | 4.778 |
| r_scbond_it | 4.276 |
| r_mcangle_it | 3.628 |
| r_mcbond_it | 2.563 |
| r_angle_refined_deg | 1 |
| r_chiral_restr | 0.067 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1941 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 220 |
| Heterogen Atoms | 9 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| MOSFLM | data reduction |
| SCALEPACK | data scaling |
| PHASER | phasing |
