Crystal structure of putative Cryptosporidium parvum translation initiation factor eIF-1A
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 4.6 | 297 | 2.5 M Ammonium sulfate, 0.1M Sodium acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 297K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.63 | 66.09 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 94.769 | α = 90 |
| b = 94.769 | β = 90 |
| c = 113.883 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | H 3 2 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 4 | Si(111) | 2007-01-27 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | NSLS BEAMLINE X8C | 0.97970 | NSLS | X8C |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 1.8 | 50 | 100 | 0.074 | 0.074 | 12.3 | 10.6 | 18459 | 18459 | 25.5 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1 | 1.8 | 1.84 | 99.6 | 0.78 | 0.78 | 2.11 | 7.4 | 1801 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||
| X-RAY DIFFRACTION | SAD | THROUGHOUT | 1.8 | 29.93 | 17497 | 17497 | 943 | 99.83 | 0.20709 | 0.20709 | 0.20537 | 0.2 | 0.24099 | 0.24 | RANDOM | 26.668 | |||
| 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] | |
| -0.15 | -0.08 | -0.15 | 0.23 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 37.315 |
| r_dihedral_angle_4_deg | 14.751 |
| r_dihedral_angle_3_deg | 13.363 |
| r_dihedral_angle_1_deg | 5.678 |
| r_scangle_it | 4.213 |
| r_scbond_it | 2.756 |
| r_mcangle_it | 1.812 |
| r_angle_refined_deg | 1.464 |
| r_mcbond_it | 1.082 |
| r_nbtor_refined | 0.305 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 741 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 148 |
| Heterogen Atoms | 5 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| CBASS | data collection |
| HKL-2000 | data reduction |
| HKL-2000 | data scaling |
| SOLVE | phasing |
| RESOLVE | phasing |














