7L3Y
Crystal structure of oxy-I107E CuB myoglobin (I107E L29H F43H sperm whale myoglobin; partial occupancy)
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4FWX |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.6 | 277 | 1.5-2.0 mM protein in 20 mM tris sulfate pH 8.0 buffer, mixed 1:1 with crystallization solution composed of 100 mM tris sulfate pH 8.6, 200 mM sodium acetate, and 30% w/v PEG 10000. After crystalization, soaked, under anaerobic conditions, in 20 mM dithionite for 10 minutes, and washed with anaerobic buffer. Reduced crystals were sealed in an air-tight bomb and pressurized at ~1500 psi O2 for up to 10 minutes. Crystals were harvested and cryocooled after a brief soak in 50% PEG 400 supersaturated with O2. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.1 | 41.4 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 39.845 | α = 90 |
b = 46.982 | β = 90 |
c = 78.034 | γ = 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 PILATUS 6M | 2015-07-20 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL11-1 | 0.98 | SSRL | BL11-1 |
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 | 1.18 | 39.02 | 97 | 0.024 | 0.028 | 0.013 | 1 | 31.7 | 3.9 | 47352 |
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 | 1.18 | 1.2 | 63.4 | 0.216 | 0.275 | 0.169 | 0.902 | 2.1 |
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 | R-Free | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 4FWX | 1.18 | 39.02 | 1.34 | 86347 | 4119 | 92.81 | 0.1582 | 0.1566 | 0.1902 | 17.26 |
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 | 14.941 |
f_angle_d | 1.3967 |
f_chiral_restr | 0.1015 |
f_bond_d | 0.0127 |
f_plane_restr | 0.0107 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1219 |
Nucleic Acid Atoms | |
Solvent Atoms | 297 |
Heterogen Atoms | 46 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
Aimless | data scaling |
PDB_EXTRACT | data extraction |
XDS | data reduction |
PHENIX | phasing |