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X-RAY DIFFRACTION
Materials and Methods page
1MAA
  •   Crystallization Hide
    Crystallization Experiments
    pH 7
    Details pH 7.0
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 136.55 α = 90
    b = 173.13 β = 90
    c = 224.25 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
    Details BENT MIRROR
    Collection Date 1996-12
     
    Diffraction Radiation
    Monochromator GE(111)
     
    Diffraction Source
    Source SYNCHROTRON
    Type EMBL/DESY, HAMBURG BEAMLINE X11
    Wavelength 0.907
    Site EMBL/DESY, HAMBURG
    Beamline X11
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.9
    Resolution(Low) 20
    Number Reflections(Observed) 107379
    Percent Possible(Observed) 92.0
    B(Isotropic) From Wilson Plot 55.0
    Redundancy 2.8
     
    High Resolution Shell Details
    Resolution(High) 2.9
    Resolution(Low) 3.0
    Percent Possible(All) 83.0
    Mean I Over Sigma(Observed) 2.0
    R-Sym I(Observed) 0.37
    Redundancy 2.7
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.9
    Resolution(Low) 20.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 107442
    Number of Reflections(R-Free) 2166
    Percent Reflections(Observed) 92.0
    R-Factor(Observed) 0.2
    R-Work 0.2
    R-Free 0.248
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 44.0
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.9
    Shell Resolution(Low) 2.97
    Number of Reflections(R-Free) 124
    Number of Reflections(R-Work) 6282
    R-Factor(R-Work) 0.32
    R-Factor(R-Free) 0.39
    Percent Reflections(Observed) 91.3
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 1.5
    x_bond_d 0.011
    x_angle_deg 1.7
    x_dihedral_angle_d 24.6
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 16734
    Nucleic Acid Atoms 0
    Heterogen Atoms 163
    Solvent Atoms 187
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) CCP4 (SCALA)
    Structure Solution X-PLOR 3.8
    Structure Refinement X-PLOR 3.8
     
    Software
    refinement X-PLOR version: 3.8
    model building X-PLOR version: 3.8
    data reduction SCALA
    data collection DENZO