6YMM
Crystal structure of the SAM-SAH riboswitch with SAM from space group P312
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6 | 293 | 0.01 M Magnesium Sulfate, 0.05 M Sodium Cacodylate pH 6.0, 1.8 M Lithium Sulfate monohydrate |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
3.72 | 66.9 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 88.17 | α = 90 |
b = 88.17 | β = 90 |
c = 76.08 | γ = 120 |
Symmetry | |
---|---|
Space Group | P 3 1 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 | PIXEL | DECTRIS EIGER2 XE 16M | 2019-07-21 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I04 | 0.9198 | Diamond | I04 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | 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 | 2.2 | 76.08 | 99.6 | 0.081 | 0.022 | 0.97 | 14.2 | 14.2 | 32912 | 61.11 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 2.2 | 2.24 | 95.7 | 1.5 | 0.52 | 0.696 | 1.4 | 9.3 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | SAD | FREE R-VALUE | 2.2 | 38.18 | 1.33 | 32912 | 1688 | 97.98 | 0.1939 | 0.1923 | 0.2211 | 78.92 |
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 |
f_dihedral_angle_d | 17.0192 |
f_angle_d | 1.6395 |
f_chiral_restr | 0.1223 |
f_plane_restr | 0.0101 |
f_bond_d | 0.0076 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 1484 |
Solvent Atoms | 11 |
Heterogen Atoms | 67 |
Software
Software | |
---|---|
Software Name | Purpose |
PHENIX | refinement |
PHENIX | refinement |
xia2 | data reduction |
xia2 | data scaling |
PHASER | phasing |