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X-RAY DIFFRACTION
Materials and Methods page
2PRG
  •   Crystallization Hide
    Crystallization Experiments
    pH 7.5
    Details pH 7.5
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 52.21 α = 90
    b = 69.06 β = 90
    c = 177.97 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 103
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU
    Details MIRRORS
    Collection Date 1997-10
     
    Diffraction Radiation
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU RU200
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 2.3
    Resolution(Low) 20
    Number Reflections(Observed) 26501
    Percent Possible(Observed) 89.7
    R Merge I(Observed) 0.061
    B(Isotropic) From Wilson Plot 33.5
    Redundancy 3.42
     
    High Resolution Shell Details
    Resolution(High) 2.3
    Resolution(Low) 2.44
    Percent Possible(All) 58.3
    R Merge I(Observed) 0.185
    Mean I Over Sigma(Observed) 4.5
    R-Sym I(Observed) 0.185
    Redundancy 2.14
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.3
    Resolution(Low) 20.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 26436
    Number of Reflections(R-Free) 653
    Percent Reflections(Observed) 89.9
    R-Factor(Observed) 0.207
    R-Work 0.207
    R-Free 0.264
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 49.8
    Anisotropic B[1][1] -8.38
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -4.56
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 12.93
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.3
    Shell Resolution(Low) 2.44
    Number of Reflections(R-Free) 65
    Number of Reflections(R-Work) 2745
    R-Factor(R-Work) 0.226
    R-Factor(R-Free) 0.249
    R-Free Error 0.031
    Percent Reflections(Observed) 58.7
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 7.51
    c_scbond_it 6.16
    c_mcangle_it 3.48
    c_mcbond_it 2.25
    c_improper_angle_d 0.76
    c_bond_d 0.011
    c_angle_deg 1.4
    c_dihedral_angle_d 18.1
     
    Coordinate Error
    Luzzati ESD(Observed) 0.25
    Luzzati Sigma A(Observed) 0.16
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.32
    Luzzati Sigma A(R-Free Set) 0.26
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 4413
    Nucleic Acid Atoms 0
    Heterogen Atoms 50
    Solvent Atoms 541
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS 0.3, X-PLOR
    Structure Refinement CNS 0.3, X-PLOR
     
    Software
    refinement X-PLOR
    refinement CNS version: 0.3
    model building X-PLOR
    model building CNS version: 0.3