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X-RAY DIFFRACTION
Materials and Methods page
1PXJ
  •   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 = 53.74 α = 90
    b = 71.7 β = 90
    c = 72.2 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 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Resolution(High) 2.3
    Resolution(Low) 20
    Number Reflections(All) 12709
    Number Reflections(Observed) 12709
    Percent Possible(Observed) 98.5
    R Merge I(Observed) 0.039
    B(Isotropic) From Wilson Plot 21.8
    Redundancy 11.7
     
    High Resolution Shell Details
    Resolution(High) 2.3
    Resolution(Low) 2.34
    Percent Possible(All) 98.7
    R Merge I(Observed) 0.144
    Mean I Over Sigma(Observed) 5.37
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.3
    Resolution(Low) 19.98
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 12672
    Number of Reflections(R-Free) 650
    Percent Reflections(Observed) 98.4
    R-Factor(All) 0.21
    R-Factor(Observed) 0.209
    R-Work 0.209
    R-Free 0.271
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 32.3
    Anisotropic B[1][1] 3.68
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -6.31
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 2.63
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.3
    Shell Resolution(Low) 2.44
    Number of Reflections(Observed) 1981
    Number of Reflections(R-Free) 107
    Number of Reflections(R-Work) 1981
    R-Factor(R-Work) 0.232
    R-Factor(R-Free) 0.334
    R-Free Error 0.032
    Percent Reflections(Observed) 98.8
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 3.05
    c_scbond_it 2.06
    c_mcangle_it 2.71
    c_mcbond_it 1.58
    c_improper_angle_d 0.8
    c_bond_d 0.006
    c_angle_deg 1.3
    c_dihedral_angle_d 22.8
     
    Coordinate Error
    Luzzati ESD(Observed) 0.26
    Luzzati Sigma A(Observed) 0.18
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.37
    Luzzati Sigma A(R-Free Set) 0.29
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2365
    Nucleic Acid Atoms 0
    Heterogen Atoms 14
    Solvent Atoms 117
     
     
  •   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