5AHY
Halorhodopsin from Halobacterium salinarum in a new rhombohedral crystal form
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 296 | RESERVOIR SOLUTION: 100 MM CITRATE PH 8, 150 MM NACL, 2.1-2.4 M (NH4)2SO4. VAPOR DIFFUSION AT 296 K WITH DROP RATIO OF 1.2 TO 0.8 UL PROTEIN TO RESERVOIR. PROTEIN CONCENTRATION 6 MG/ML. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.78 | 55.74 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 103.651 | α = 90 |
b = 103.651 | β = 90 |
c = 138.588 | γ = 120 |
Symmetry | |
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Space Group | H 3 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 | 100 | CCD | MARMOSAIC 225 mm CCD | PT COATED SI MIRROR | 2012-07-24 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID23-2 | ESRF | ID23-2 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (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 | 2.15 | 42.7 | 99.9 | 0.09 | 14.9 | 4.9 | 15809 | -3 | 29.72 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.15 | 2.23 | 99.7 | 0.76 | 2.1 | 4.4 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution 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 | PDB ENTRY 1E12 | 2.15 | 42.699 | 1.34 | 15804 | 796 | 99.89 | 0.1873 | 0.1851 | 0.2272 | 30.4 |
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 | 12.599 |
f_angle_d | 1.071 |
f_chiral_restr | 0.041 |
f_bond_d | 0.008 |
f_plane_restr | 0.005 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1822 |
Nucleic Acid Atoms | |
Solvent Atoms | 28 |
Heterogen Atoms | 42 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
XDS | data reduction |
XSCALE | data scaling |
PHASER | phasing |