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X-RAY DIFFRACTION
Materials and Methods page
1LZ8
  •   Crystallization Hide
    Crystallization Experiments
    pH 4.6
    Details BATCH METHOD. 20 MG/ML PROTEIN SOLUTION IN 50MM SODIUM ACETATE PH 4.6 AND 10% NACL. CRYSTALS GROWN AT ROOM TEMPERATURE.
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 78.81 α = 90
    b = 78.81 β = 90
    c = 36.8 γ = 90
     
    Space Group
    Space Group Name:    P 43 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 120
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Details SEGMENTED MIRROR
    Collection Date 1994-12-01
     
    Diffraction Radiation
    Monochromator SILICON CRYSTAL
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X9B
    Wavelength 0.927
    Site NSLS
    Beamline X9B
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 3.0
    Resolution(High) 0.92
    Resolution(Low) 25
    Number Reflections(Observed) 58373
    Percent Possible(Observed) 90.1
    R Merge I(Observed) 0.028
    B(Isotropic) From Wilson Plot 17.7
    Redundancy 2.0
     
    High Resolution Shell Details
    Resolution(High) 0.93
    Resolution(Low) 0.94
    Percent Possible(All) 78.0
    R Merge I(Observed) 0.17
    Mean I Over Sigma(Observed) 4.9
    R-Sym I(Observed) 0.17
    Redundancy 2.0
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.53
    Resolution(Low) 25.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 17923
    Number of Reflections(R-Free) 915
    Percent Reflections(Observed) 100.0
    R-Factor(Observed) 0.22
    R-Work 0.22
    R-Free 0.31
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 19.6
    Anisotropic B[1][1] 1.043
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 1.043
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -1.96
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    p_transverse_tor 20.1
    p_staggered_tor 14.9
    p_planar_tor 5.7
    p_xyhbond_nbd 0.21
    p_multtor_nbd 0.294
    p_bond_d 0.026
    p_angle_d 0.044
    p_planar_d 0.044
    p_mcbond_it 2.2
    p_mcangle_it 2.9
    p_scbond_it 4.3
    p_scangle_it 5.1
    p_plane_restr 0.016
    p_chiral_restr 0.18
    p_singtor_nbd 0.168
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1001
    Nucleic Acid Atoms 0
    Heterogen Atoms 9
    Solvent Atoms 224
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CCP4
    Structure Refinement REFMAC
     
    Software
    refinement REFMAC
    model building CCP4
    data reduction SCALEPACK
    data collection DENZO