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X-RAY DIFFRACTION
Materials and Methods page
1EMA
  •   Crystallization Hide
    Crystallization Experiments
    pH 8.2
    Details 22-26% PEG 4000, 50 MM HEPES PH 8.0-8.4, 50 MM MGCL2, 10 MM 2-MERCAPTOETHANOL, 5-7 MG PROTEIN, pH 8.2
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 51.77 α = 90
    b = 62.85 β = 90
    c = 70.67 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 295
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type FUJI
    Collection Date 1996-04-28
     
    Diffraction Radiation
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X4A
    Wavelength 0.979
    Site NSLS
    Beamline X4A
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 1.9
    Number Reflections(Observed) 17676
    Percent Possible(Observed) 84.0
    R Merge I(Observed) 0.09
    B(Isotropic) From Wilson Plot 16.5
    Redundancy 6.45
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MIR/SAD
    reflnsShellList 1.9
    Resolution(Low) 20.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 17676
    Percent Reflections(Observed) 84.0
     
    Temperature Factor Modeling
    Isotropic Thermal Model TNT
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    t_nbd 0.041
    t_it 4.29
    t_gen_planes 0.018
    t_trig_c_planes 0.014
    t_incorr_chiral_ct 0.0
    t_dihedral_angle_d 19.65
    t_angle_deg 1.95
    t_bond_d 0.014
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1771
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 95
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) HKL
    Data Reduction (data scaling) HKL
    Structure Solution CCP4, PROTEIN
    Structure Refinement TNT V. 5-F
     
    Software
    refinement TNT version: 5-F
    model building PROTEIN
    model building CCP4