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X-RAY DIFFRACTION
Materials and Methods page
1PW2
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7.8
    Temperature 277.0
    Details PEG 6000, Na-HEPES, pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 277K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 53.69 α = 90
    b = 71.8 β = 90
    c = 72.03 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Collection Date 2001-09-01
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type ENRAF-NONIUS FR571
    Wavelength List 1.54
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 5.61
    Resolution(High) 1.95
    Resolution(Low) 20
    Number Reflections(All) 20576
    Number Reflections(Observed) 20576
    Percent Possible(Observed) 98.4
    R Merge I(Observed) 0.073
    B(Isotropic) From Wilson Plot 14.2
    Redundancy 10.45
     
    High Resolution Shell Details
    Resolution(High) 1.95
    Resolution(Low) 2.0
    Percent Possible(All) 97.1
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.95
    Resolution(Low) 19.93
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 20265
    Number of Reflections(R-Free) 985
    Percent Reflections(Observed) 97.1
    R-Factor(All) 0.213
    R-Factor(Observed) 0.213
    R-Work 0.213
    R-Free 0.249
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 30.4
    Anisotropic B[1][1] 1.61
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -3.55
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 1.94
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.95
    Shell Resolution(Low) 2.07
    Number of Reflections(R-Free) 153
    Number of Reflections(R-Work) 3243
    R-Factor(R-Work) 0.219
    R-Factor(R-Free) 0.264
    R-Free Error 0.021
    Percent Reflections(Observed) 99.8
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 3.17
    c_scbond_it 2.17
    c_mcangle_it 2.52
    c_mcbond_it 1.61
    c_improper_angle_d 0.77
    c_dihedral_angle_d 22.6
    c_angle_deg 1.2
    c_bond_d 0.005
     
    Coordinate Error
    Luzzati ESD(Observed) 0.25
    Luzzati Sigma A(Observed) 0.15
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.31
    Luzzati Sigma A(R-Free Set) 0.23
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2365
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 234
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution MOLREP
    Structure Refinement CNS 1.0
     
    Software
    refinement CNS version: 1.0