6UYK
Dark-operative protochlorophyllide oxidoreductase in the nucleotide-free form.
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3FWY |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 288 | 1 ul BchL protein in 100 mM HEPES pH 7.5, 150 mM NaCl, 10% (v/v) glycerol was mixed with 2 ul well solution containing 0.6 M sodium chloride, 0.1 M MES:NaOH pH 6.5, 20% (w/v) PEG 4000. Prior to freezing, the well solution was mixed in an equal volume of cryoprotectant solution with a final concentration of 9% (w/v) sucrose, 2% (w/v) glucose, 8% (v/v) glycerol, and 8% (v/v) ethylene glycol. Crystals were soaked for a few seconds in the cryoprotectant before being frozen in liquid nitrogen |
Crystal Properties | |
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Matthews coefficient | Solvent content |
1.95 | 36.81 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 92.513 | α = 90 |
b = 100.918 | β = 99.27 |
c = 117.789 | γ = 90 |
Symmetry | |
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Space Group | I 1 2 1 |
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 | 100 | PIXEL | DECTRIS EIGER X 9M | 2018-04-09 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS-II BEAMLINE 17-ID-1 | 1.008 | NSLS-II | 17-ID-1 |
Data Collection
Overall | |||||||||||||||||||
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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 | 2.6 | 42.2 | 99.5 | 0.173 | 0.057 | 0.99 | 9.2 | 9.3 | 32733 | 80.66 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 2.6 | 2.69 | 95.3 | 0.908 | 0.413 | 0.573 | 1.5 | 5.1 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work (Depositor) | R-Free (Depositor) | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 3FWY | 2.6 | 41.71 | 1.34 | 32732 | 2873 | 99.41 | 0.2354 | 0.2314 | 0.2772 | 85.6 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 14.0058 |
f_angle_d | 0.393 |
f_chiral_restr | 0.0398 |
f_plane_restr | 0.0034 |
f_bond_d | 0.0019 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 7648 |
Nucleic Acid Atoms | |
Solvent Atoms | 1 |
Heterogen Atoms | 18 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
PHASER | phasing |