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X-RAY DIFFRACTION
Materials and Methods page
1R9F
  •   Crystallization Hide
    Crystallization Experiments
    pH 7.5
    Temperature 293.0
    Details ammonium sulfate, potassium chloride, HEPES-NaOH, dithiothreitol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 7.50
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 91.25 α = 90
    b = 91.25 β = 90
    c = 148.63 γ = 120
     
    Space Group
    Space Group Name:    H 3 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type MARRESEARCH
    Collection Date 2003-07-18
     
    Diffraction Radiation
    Monochromator DIAMOND (111) DOUBLE-CRYSTAL MONOCHROMATOR
    Diffraction Protocol MAD
     
    Diffraction Source
    Source SYNCHROTRON
    Type APS BEAMLINE 14-ID-B
    Wavelength List 0.9791,0.9789,0.9562
    Site APS
    Beamline 14-ID-B
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 1.85
    Resolution(Low) 50
    Number Reflections(Observed) 39408
    Percent Possible(Observed) 99.1
    R Merge I(Observed) 0.06
    B(Isotropic) From Wilson Plot 21.8
    Redundancy 9.5
     
    High Resolution Shell Details
    Resolution(High) 1.85
    Resolution(Low) 1.92
    Percent Possible(All) 93.2
    R Merge I(Observed) 0.725
    Mean I Over Sigma(Observed) 2.0
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MAD
    reflnsShellList 1.85
    Resolution(Low) 14.86
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 36309
    Number of Reflections(Observed) 36309
    Number of Reflections(R-Free) 1772
    Percent Reflections(Observed) 92.3
    R-Factor(Observed) 0.212
    R-Work 0.212
    R-Free 0.23
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 46.4
    Anisotropic B[1][1] 5.46
    Anisotropic B[1][2] 4.19
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 5.46
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -10.91
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.86
    Shell Resolution(Low) 1.97
    Number of Reflections(R-Free) 220
    Number of Reflections(R-Work) 4623
    R-Factor(R-Work) 0.324
    R-Factor(R-Free) 0.355
    R-Free Error 0.024
    Percent Reflections(Observed) 74.2
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 3.15
    c_scbond_it 2.11
    c_mcangle_it 2.21
    c_mcbond_it 1.42
    c_improper_angle_d 1.02
    c_bond_d 0.004
    c_angle_deg 0.9
    c_dihedral_angle_d 16.3
     
    Coordinate Error
    Luzzati ESD(Observed) 0.24
    Luzzati Sigma A(Observed) 0.27
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.26
    Luzzati Sigma A(R-Free Set) 0.29
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 962
    Nucleic Acid Atoms 810
    Heterogen Atoms 10
    Solvent Atoms 70
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) HKL-2000
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS 1.1
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1