6ME9
XFEL crystal structure of human melatonin receptor MT2 in complex with ramelteon
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 1IRO | PDB id:1IRO |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | LIPIDIC CUBIC PHASE | 293 | N-(2-Acetamido)iminodiacetic acid, PEG 400, ammonium acetate |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
3.64 | 66.19 |
Crystal Data
Unit Cell | |
---|---|
Length ( ? ) | Angle ( ? ) |
a = 69.4 | ¦Á = 90 |
b = 145.7 | ¦Â = 106.2 |
c = 77.2 | ¦Ã = 90 |
Symmetry | |
---|---|
Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 293 | PIXEL | CS-PAD CXI-1 | 2017-12-07 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | FREE ELECTRON LASER | SLAC LCLS BEAMLINE CXI | 1.30 | SLAC LCLS | CXI |
Serial Crystallography
Sample delivery method | ||
---|---|---|
Diffraction ID | Description | Sample Delivery Method |
1 | injection |
Injection | |||||||
---|---|---|---|---|---|---|---|
Diffraction ID | Description | Flow Rate | Injector Diameter | Injection Power | Injector Nozzle | Filter Size | Carrier Solvent |
1 | 0.357 | HPLC pump | LCP | LCP |
Measurement | |||||
---|---|---|---|---|---|
Diffraction ID | Pulse Duration | Pulse Repetition Rate | Focal Spot Size | Pulse Energy | Photons Per Pulse |
1 | 30 | 120 | 9.83 |
Data Reduction | |||
---|---|---|---|
Diffraction ID | Frames Indexed | Crystal Hits | Total Frames |
1 | 28834 | 60005 | 727004 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 3.3 | 22 | 100 | 3.67 | 221.1 | 22143 | 79.55 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Split (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 3.3 | 3.46 | 100 | 0.2 | 84.6 |
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 id:1IRO | 3.3 | 22 | 22122 | 1108 | 100 | 0.249 | 0.248 | 0.27 | RANDOM | 136.26 |
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] | |
-39.6645 | -24.7703 | 35.1785 | 4.486 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
t_other_torsion | 2.71 |
t_omega_torsion | 2.03 |
t_angle_deg | 0.95 |
t_bond_d | 0.009 |
t_dihedral_angle_d | |
t_incorr_chiral_ct | |
t_pseud_angle | |
t_trig_c_planes | |
t_gen_planes | |
t_it |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 5965 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 39 |
Software
Software | |
---|---|
Software Name | Purpose |
BUSTER | refinement |
CrystFEL | data reduction |
CrystFEL | data scaling |
PHASER | phasing |