Structure of dsRNA 16mer containing 4'-C-methyluridine
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 294 | 10% MPD, 40 mM Sodium cacodylate trihydrate pH 6.0 12 mM Spermine, 80 mM KCl | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.22 | 43.55 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 74.081 | α = 90 |
| b = 42.928 | β = 120.019 |
| c = 49.294 | 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 | 100 | PIXEL | DECTRIS EIGER2 XE 16M | 2024-07-05 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SSRL BEAMLINE BL12-1 | 0.92002 | SSRL | BL12-1 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | 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 | 2 | 33 | 98.5 | 0.075 | 0.09 | 0.049 | 0.994 | 5.3 | 3.3 | 9056 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
| 1 | 2 | 2.05 | 98.8 | 0.622 | 0.741 | 0.398 | 0.691 | 3.4 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | Mean Isotropic B | ||||||
| X-RAY DIFFRACTION | SAD | FREE R-VALUE | 2 | 32.143 | 9055 | 492 | 98.381 | 0.226 | 0.2248 | 0.2335 | 0.2499 | 0.2449 | 53.496 | ||||||
| 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] | |
| 1.303 | -0.06 | 0.108 | -0.805 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_lrange_it | 5.756 |
| r_lrange_other | 5.755 |
| r_scangle_it | 4.982 |
| r_scangle_other | 4.981 |
| r_scbond_it | 3.461 |
| r_scbond_other | 3.459 |
| r_angle_refined_deg | 1.691 |
| r_angle_other_deg | 0.49 |
| r_dihedral_angle_other_2_deg | 0.404 |
| r_nbtor_refined | 0.261 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | |
| Nucleic Acid Atoms | 1017 |
| Solvent Atoms | 4 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| Aimless | data scaling |
| XDS | data reduction |
| PDB_EXTRACT | data extraction |
| AutoSol | phasing |














