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X-RAY DIFFRACTION
Materials and Methods page
2ZCE
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7
    Temperature 293.0
    Details Na/Cacodylate, MgCl2, PEG3350, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 104.5 α = 90
    b = 104.5 β = 90
    c = 70.85 γ = 120
     
    Space Group
    Space Group Name:    P 64
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 315
    Collection Date 2005-06-29
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type SPRING-8 BEAMLINE BL41XU
    Wavelength List 1.0000
    Site SPRING-8
    Beamline BL41XU
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 1.8
    Resolution(Low) 50
    Number Reflections(Observed) 40321
    Percent Possible(Observed) 98.6
    B(Isotropic) From Wilson Plot 26.7
     
    High Resolution Shell Details
    Resolution(High) 1.8
    Resolution(Low) 1.83
    Percent Possible(All) 92.5
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.8
    Resolution(Low) 42.05
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 40310
    Number of Reflections(R-Free) 4049
    Percent Reflections(Observed) 98.5
    R-Factor(Observed) 0.19
    R-Work 0.19
    R-Free 0.225
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 43.2
    Anisotropic B[1][1] -1.7
    Anisotropic B[1][2] 2.66
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -1.7
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 3.39
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.8
    Shell Resolution(Low) 1.91
    Number of Reflections(R-Free) 677
    Number of Reflections(R-Work) 5790
    R-Factor(R-Work) 0.346
    R-Factor(R-Free) 0.347
    R-Free Error 0.013
    Percent Reflections(Observed) 95.4
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 8.45
    c_scbond_it 6.41
    c_mcangle_it 5.06
    c_mcbond_it 3.95
    c_improper_angle_d 1.89
    c_dihedral_angle_d 23.6
    c_angle_deg 1.6
    c_bond_d 0.01
     
    Coordinate Error
    Luzzati ESD(Observed) 0.2
    Luzzati Sigma A(Observed) 0.35
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.24
    Luzzati Sigma A(R-Free Set) 0.33
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2076
    Nucleic Acid Atoms 0
    Heterogen Atoms 51
    Solvent Atoms 224
     
     
  •   Software and Computing Hide
    Computing
    Data Collection HKL-2000
    Data Reduction (intensity integration) HKL-2000
    Data Reduction (data scaling) SCALEPACK
    Structure Solution Molrep
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1