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An Information Portal to 106858 Biological Macromolecular Structures

X-RAY DIFFRACTION
Materials and Methods page
1ENV
  •   Crystallization Hide
    Crystallization Experiments
    pH 8
    Details 20 MM HEPES PH 8.0 1.1 M AMMONIUM SULFATE 12% ETHYLENE GLYCOL SPACE GROUP R32 IN HEXAGONAL SETTING
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 52.35 α = 90
    b = 52.35 β = 90
    c = 414.6 γ = 120
     
    Space Group
    Space Group Name:    H 3 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 298
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Details MIRRORS
    Collection Date 1997-02
     
    Diffraction Radiation
     
    Diffraction Source
    Source ROTATING ANODE
    Type ELLIOTT GX-13
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 2.0
    Resolution(High) 2.6
    Resolution(Low) 25
    Number Reflections(Observed) 8130
    Percent Possible(Observed) 90.5
    R Merge I(Observed) 0.071
    B(Isotropic) From Wilson Plot 59.41
    Redundancy 7.45
     
    High Resolution Shell Details
    Resolution(High) 2.59
    Resolution(Low) 2.69
    Percent Possible(All) 91.4
    R Merge I(Observed) 0.179
    Mean I Over Sigma(Observed) 4.5
    R-Sym I(Observed) 0.179
    Redundancy 5.0
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MIR
    reflnsShellList 2.6
    Resolution(Low) 25.0
    Cut-off Sigma(F) 2.0
    Number of Reflections(Observed) 6432
    Number of Reflections(R-Free) 674
    Percent Reflections(Observed) 90.5
    R-Factor(Observed) 0.244
    R-Work 0.244
    R-Free 0.277
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 52.9
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.6
    Shell Resolution(Low) 2.72
    Number of Reflections(R-Free) 88
    Number of Reflections(R-Work) 695
    R-Factor(R-Work) 0.244
    R-Factor(R-Free) 0.277
    R-Free Error 0.004
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_bond_d 0.01
    x_angle_deg 1.2
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 935
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 12
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution X-PLOR 3.1
    Structure Refinement X-PLOR 3.1
     
    Software
    refinement X-PLOR version: 3.1
    model building X-PLOR version: 3.1