Crystal structure of the F420-reducing carbon monoxide dehydrogenase component from the ethanotroph Candidatus Ethanoperedens thermophilum
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6 | 293.15 | Crystallisation was performed anaerobically at 20 degree Celsius using the sitting drop method on 96-Well MRC 2-Drop polystyrene Crystallisation Plates (SWISSCI) in a Coy tent containing a N2/H2 (97:3%) atmosphere. The reservoir chamber was filled with 90 ul of crystallisation condition and the drop was formed by spotting 0.6 ul protein with 0.6 ul of 20% (w/v) PEG 6,000; 100 mM MES pH6 and 200 mM Ammonium chloride. The protein was crystallized at 13.0 mg/ml in 25 mM Tris/HCl pH 7.6, 2 mM dithiothreitol, 1 mM flavin adenine dinucleotide and 1 mM Flavin mononuleotide and 10% (v/v) glycerol. Crystals were cryo-protected by soaking in 20% (w/v) PEG 6,000; 100 mM MES pH6 and 200 mM Ammonium chloride supplemented with 30% v/v glycerol for a few seconds. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.51 | 51.1 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 97.07 | ¦Á = 90 |
b = 159.213 | ¦Â = 90 |
c = 191.444 | ¦Ã = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 16M | 2019-11-22 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SOLEIL BEAMLINE PROXIMA 1 | 0.97856 | SOLEIL | PROXIMA 1 |
Data Collection
Overall | |||||||||||||||||||
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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 | 1.89 | 122.41 | 95.9 | 0.149 | 0.155 | 0.042 | 0.999 | 10.8 | 13.6 | 164775 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 1.89 | 2.1 | 73.6 | 1.583 | 1.65 | 0.46 | 0.639 | 1.7 | 12.2 |
Refinement
Statistics | |||||||||||||||||||
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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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | Mean Isotropic B | |||||
X-RAY DIFFRACTION | SAD | FREE R-VALUE | 1.89 | 39.8 | 1.34 | 164728 | 8278 | 69.97 | 0.1662 | 0.1651 | 0.1699 | 0.1873 | 0.1881 | 44.12 |
Temperature Factor Modeling | ||||||
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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 | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 14.314 |
f_angle_d | 1.233 |
f_chiral_restr | 0.261 |
f_bond_d | 0.009 |
f_plane_restr | 0.009 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 20332 |
Nucleic Acid Atoms | |
Solvent Atoms | 1418 |
Heterogen Atoms | 128 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
autoPROC | data reduction |
autoPROC | data scaling |
PHENIX | phasing |