5AHY

Halorhodopsin from Halobacterium salinarum in a new rhombohedral crystal form


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION296RESERVOIR 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
Matthews coefficientSolvent content
2.7855.74

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 103.651α = 90
b = 103.651β = 90
c = 138.588γ = 120
Symmetry
Space GroupH 3 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 225 mm CCDPT COATED SI MIRROR2012-07-24MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID23-2ESRFID23-2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.1542.799.90.0914.94.915809-329.72
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.152.2399.70.762.14.4

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRY 1E122.1542.6991.341580479699.890.18730.18510.227230.4
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d12.599
f_angle_d1.071
f_chiral_restr0.041
f_bond_d0.008
f_plane_restr0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1822
Nucleic Acid Atoms
Solvent Atoms28
Heterogen Atoms42

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing