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X-RAY DIFFRACTION
Materials and Methods page
1EQZ
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 6
    Details pH 6.0, VAPOR DIFFUSION, HANGING DROP
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 105.28 α = 90
    b = 109.71 β = 90
    c = 181.12 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 1996-04-18
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X12C
    Wavelength 1.003
    Site NSLS
    Beamline X12C
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.5
    Resolution(Low) 25.4
    Number Reflections(All) 73319
    Number Reflections(Observed) 73319
    Percent Possible(Observed) 98.7
    B(Isotropic) From Wilson Plot 42.7
    Redundancy 8.3
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method SIR, MR
    reflnsShellList 2.5
    Resolution(Low) 25.34
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 72200
    Number of Reflections(Observed) 72200
    Number of Reflections(R-Free) 7303
    Percent Reflections(Observed) 98.6
    R-Factor(Observed) 0.219
    R-Work 0.219
    R-Free 0.282
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 53.2
    Anisotropic B[1][1] 5.98
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -5.53
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -0.45
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 5.98
    c_scbond_it 4.68
    c_mcangle_it 4.96
    c_mcbond_it 3.64
    c_improper_angle_d 1.33
    c_bond_d 0.013
    c_angle_deg 1.6
    c_dihedral_angle_d 20.5
     
    Coordinate Error
    Luzzati ESD(Observed) 0.31
    Luzzati Sigma A(Observed) 0.18
    Luzzati Resolution Cutoff(Low) 25.4
    Luzzati ESD(R-Free Set) 0.42
    Luzzati Sigma A(R-Free Set) 0.29
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 6906
    Nucleic Acid Atoms 5988
    Heterogen Atoms 29
    Solvent Atoms 349
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) SOFTWARE AT SYNCHROTRON
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CCP4, CNS
    Structure Refinement CNS 1.0
     
    Software
    refinement CNS version: 1.0
    model building CNS
    model building CCP4
    data reduction SCALEPACK
    data collection SYNCHROTRON