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X-RAY DIFFRACTION
Materials and Methods page
1AMU
  •   Crystallization Hide
    Crystallization Experiments
    Method vapor diffusion
    pH 6.5
    Temperature 291.0
    Details CRYSTALS WERE GROWN USING THE VAPOR DIFFUSION TECHNIQUE. THE PROTEIN AT 15 MG/ML IN 10 MM TRIS-HCL PH7.8, 50 MM NACL, 15% GLYCEROL, 2 MM ATP, 2 MM L-PHE AND 4 MM MGCL2 WAS EQUILIBRATED WITH AN EQUAL VOLUME OF RESERVOIR SOLUTION CONTAINING 28-32%(W/V) METHOXY POLYETHYLENE GLYCOL 5000, 200 MM AMMONIUM SULFATE, AND 100 MM ADA PH6.5 AT 18C., vapor diffusion, temperature 291K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 61.68 α = 90
    b = 154.77 β = 93.91
    c = 65.3 γ = 90
     
    Space Group
    Space Group Name:    P 1 21 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MAR scanner 300 mm plate
    Collection Date 1996-09-09
     
    Diffraction Radiation
    Monochromator Y
     
    Diffraction Source
    Source SYNCHROTRON
    Type EMBL/DESY, HAMBURG BEAMLINE BW7B
    Wavelength 0.88
    Site EMBL/DESY, HAMBURG
    Beamline BW7B
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 1.9
    Resolution(Low) 20
    Number Reflections(Observed) 91144
    Percent Possible(Observed) 96.4
    R Merge I(Observed) 0.051
    Redundancy 2.5
     
    High Resolution Shell Details
    Resolution(High) 1.9
    Resolution(Low) 2.0
    Percent Possible(All) 88.3
    R Merge I(Observed) 0.232
    Mean I Over Sigma(Observed) 2.7
    Redundancy 1.9
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MIR
    reflnsShellList 1.9
    Resolution(Low) 20.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 91142
    Number of Reflections(R-Free) 3656
    Percent Reflections(Observed) 95.3
    R-Factor(Observed) 0.213
    R-Work 0.213
    R-Free 0.246
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 33.0
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.9
    Shell Resolution(Low) 1.99
    Number of Reflections(R-Free) 437
    Number of Reflections(R-Work) 9969
    R-Factor(R-Work) 0.331
    R-Factor(R-Free) 0.331
    R-Free Error 0.016
    Percent Reflections(Observed) 87.12
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 1.1
    x_bond_d 0.008
    x_angle_deg 1.37
    x_dihedral_angle_d 24.1
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 7897
    Nucleic Acid Atoms 0
    Heterogen Atoms 82
    Solvent Atoms 569
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) CCP4
    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
    data reduction CCP4 version: SUITE
    data collection MOSFLM