1GTF
The structure of the trp RNA-binding attenuation protein (TRAP) bound to a 53-nucleotide RNA molecule containing GAGUU repeats
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 8 | 0.2M K-GLUTAMATE, 50 MM TRIETHANOLAMINE PH8.0, 10MM MGCL2, 8-11% MONOMETHYL ETHER PEG 2000 + 0.4M KCL AT END, pH 8.00 | ||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.4 | 49 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 142.077 | α = 90 |
| b = 111.493 | β = 117.28 |
| c = 138.232 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | C 1 2 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 120 | 1999-02-15 | M | SINGLE WAVELENGTH | ||||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ESRF BEAMLINE ID14-4 | 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 | 1.75 | 50 | 96.1 | 0.073 | 15 | 3 | 546919 | ||||||||||||
| 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 | 1.75 | 1.78 | 82.6 | 0.45 | 1.7 | 2.2 | |||||||||||||
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 | 1C9S | 1.75 | 47.67 | 182643 | 1848 | 100 | 0.194 | 0.194 | 0.242 | RANDOM | |||||||
| 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_4_deg | 21.025 |
| r_dihedral_angle_3_deg | 14.181 |
| r_scangle_it | 4.077 |
| r_scbond_it | 2.862 |
| r_mcangle_it | 1.698 |
| r_angle_other_deg | 1.694 |
| r_mcbond_it | 0.975 |
| r_symmetry_vdw_refined | 0.302 |
| r_nbd_refined | 0.228 |
| r_symmetry_hbond_refined | 0.21 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 11843 |
| Nucleic Acid Atoms | 968 |
| Solvent Atoms | 1466 |
| Heterogen Atoms | 330 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| AMoRE | phasing |
