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X-RAY DIFFRACTION
Materials and Methods page
1NHU
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7.5
    Temperature 295.0
    Details 18% (w/v) PEG 4000, 0.3 M NaCl, 0.1 M sodium acetate buffer (pH = 5.0), 5 mM 2-mercaptoethanol, VAPOR DIFFUSION, HANGING DROP, temperature 295K, pH 7.50
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 86.01 α = 90
    b = 104.68 β = 90
    c = 126.84 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 105
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU RAXIS IV
    Details mirrors
    Collection Date 2001-09-17
     
    Diffraction Radiation
    Monochromator mirrors
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU RU300
    Wavelength List 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2
    Resolution(Low) 40
    Number Reflections(All) 77964
    Number Reflections(Observed) 77907
    Percent Possible(Observed) 99.7
    B(Isotropic) From Wilson Plot 14.8
    Redundancy 4.3
     
    High Resolution Shell Details
    Resolution(High) 2.0
    Resolution(Low) 2.07
    Percent Possible(All) 97.7
    Mean I Over Sigma(Observed) 6.1
    R-Sym I(Observed) 0.23
    Redundancy 4.0
    Number Unique Reflections(All) 7499
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.0
    Resolution(Low) 35.67
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 77964
    Number of Reflections(Observed) 77907
    Number of Reflections(R-Free) 3949
    Percent Reflections(Observed) 99.9
    R-Factor(All) 0.221
    R-Factor(Observed) 0.2191
    R-Work 0.219
    R-Free 0.256
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 27.6
    Anisotropic B[1][1] -8.99
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 14.8
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -5.82
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.0
    Shell Resolution(Low) 2.13
    Number of Reflections(R-Free) 650
    Number of Reflections(R-Work) 12151
    R-Factor(R-Work) 0.264
    R-Factor(R-Free) 0.309
    R-Free Error 0.012
    Percent Reflections(Observed) 99.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 3.42
    c_scbond_it 2.38
    c_mcangle_it 2.2
    c_mcbond_it 1.51
    c_improper_angle_d 0.93
    c_bond_d 0.012
    c_angle_deg 1.5
    c_dihedral_angle_d 21.7
     
    Coordinate Error
    Luzzati ESD(R-Free Set) 0.3
    Luzzati Sigma A(R-Free Set) 0.24
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 8674
    Nucleic Acid Atoms 0
    Heterogen Atoms 66
    Solvent Atoms 577
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) R-AXIS
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1
    model building CNS
    data reduction SCALEPACK
    data collection R-AXIS