4IA4
Structure of the spinach aquaporin SoPIP2;1 at pH 6
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6 | 278 | 22% PEG400, 0.1M NaCitrate, 0.05M NaCl, 0.02M MgCl2, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 278K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.58 | 52.32 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 178.227 | α = 90 |
| b = 104.19 | β = 90 |
| c = 66.523 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 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 315r | 2010-02-03 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ESRF BEAMLINE ID14-4 | 0.9395 | ESRF | ID14-4 |
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 | 3.1 | 104.26 | 98.2 | 0.099 | 11.1 | 3.9 | 23083 | 22668 | 1.5 | ||||||||||
| 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 | 3.1 | 3.27 | 99.6 | 0.667 | 1.6 | 4 | 3312 | ||||||||||||
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 1Z98 | 3.1 | 90.11 | 21484 | 1166 | 97.55 | 0.23733 | 0.23703 | 0.24281 | RANDOM | 96.779 | ||||||
| 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 | 38.192 |
| r_dihedral_angle_4_deg | 20.006 |
| r_dihedral_angle_3_deg | 17.403 |
| r_angle_other_deg | 3.596 |
| r_dihedral_angle_1_deg | 3.019 |
| r_angle_refined_deg | 1.584 |
| r_chiral_restr | 0.113 |
| r_bond_refined_d | 0.008 |
| r_gen_planes_refined | 0.008 |
| r_gen_planes_other | 0.007 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 7277 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 1 |
| Heterogen Atoms | 12 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| ADSC | data collection |
| MOLREP | phasing |
| CNS | refinement |
| MOSFLM | data reduction |
| SCALA | data scaling |
