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Halorhodopsin from Halobacterium salinarum in a new rhombohedral crystal form
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1E12 PDB ENTRY 1E12
Crystallization Crystalization Experiments 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 Matthews coefficient Solvent content 2.78 55.74
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 103.651 α = 90 b = 103.651 β = 90 c = 138.588 γ = 120
Diffraction Diffraction Experiment 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 ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID23-2 ESRF ID23-2
Data Collection Overall 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 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 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 (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) 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 0.1877 0.2272 0.23 30.4
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 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 Non-Hydrogen Atoms Number Protein Atoms 1822 Nucleic Acid Atoms Solvent Atoms 28 Heterogen Atoms 42
Software Software Software Name Purpose PHENIX refinement XDS data reduction XSCALE data scaling PHASER phasing