6ME4
XFEL crystal structure of human melatonin receptor MT1 in complex with 2-iodomelatonin
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4S0V | PDB id: 4S0V |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | LIPIDIC CUBIC PHASE | 293 | 60-100 mM potassium phosphate monobasic, 32-35% (vol/vol) PEG 400, 100 mM HEPES pH 7.0, 1 mM ligand, 2.5% (vol/vol) DMSO, 1.5% (vol/vol) propan-2-ol |
Crystal Properties | |
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Matthews coefficient | Solvent content |
4.09 | 69.95 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 122.6 | α = 90 |
b = 122.6 | β = 90 |
c = 123.3 | γ = 90 |
Symmetry | |
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Space Group | P 4 21 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
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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 | 2017-12-08 | 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 | 0.347 | 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 | 21038 | 21776 | 429006 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Split (All) | 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 | 3.2 | 28.91 | 100 | 0.15 | 6.5 | 595 | 16077 | 80.97 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 3.2 | 3.42 | 100 | 2.096 | 0.57 | 85.8 |
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 | FREE R-VALUE | PDB id: 4S0V | 3.2 | 28.91 | 15957 | 802 | 99.4 | 0.211 | 0.209 | 0.249 | RANDOM | 129.58 |
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] | |
-2.8639 | -2.8639 | 5.7277 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
t_other_torsion | 3.12 |
t_omega_torsion | 2.11 |
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 | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3692 |
Nucleic Acid Atoms | |
Solvent Atoms | 3 |
Heterogen Atoms | 41 |
Software
Software | |
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Software Name | Purpose |
BUSTER | refinement |
CrystFEL | data reduction |
CrystFEL | data scaling |
PHASER | phasing |