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An Information Portal to 111558 Biological Macromolecular Structures

X-RAY DIFFRACTION
Materials and Methods page
1LCN
  •   Crystallization Hide
    Crystallization Experiments
    pH 5
    Details KSCN 190MM BUFFER CH3COOK 50MM, PH=5, pH 5.0
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 28.01 α = 90
    b = 63.18 β = 90
    c = 60.41 γ = 90
     
    Space Group
    Space Group Name:    P 1 21 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 283
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MAR scanner 345 mm plate
    Details MIRROR
    Collection Date 1998-09-15
     
    Diffraction Radiation
    Monochromator BENT CRYSTAL
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type LURE BEAMLINE DW32
    Wavelength 0.963
    Site LURE
    Beamline DW32
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 1.0
    Resolution(High) 1.63
    Resolution(Low) 15.83
    Number Reflections(Observed) 25539
    Percent Possible(Observed) 96.8
    B(Isotropic) From Wilson Plot 18.4
    Redundancy 4.2
     
    High Resolution Shell Details
    Resolution(High) 1.63
    Resolution(Low) 1.69
    Percent Possible(All) 89.5
    Mean I Over Sigma(Observed) 6.3
    R-Sym I(Observed) 0.121
    Redundancy 3.9
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.63
    Resolution(Low) 15.83
    Cut-off Sigma(F) 2.0
    Number of Reflections(Observed) 25515
    Number of Reflections(R-Free) 2526
    Percent Reflections(Observed) 96.9
    R-Factor(Observed) 0.198
    R-Work 0.198
    R-Free 0.237
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 16.2
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.63
    Shell Resolution(Low) 1.69
    Number of Reflections(R-Free) 233
    Number of Reflections(R-Work) 2124
    R-Factor(R-Work) 0.284
    R-Factor(R-Free) 0.304
    R-Free Error 0.02
    Percent Reflections(Observed) 89.7
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_scangle_it 4.25
    x_scbond_it 2.8
    x_mcangle_it 2.51
    x_mcbond_it 1.58
    x_improper_angle_d 1.07
    x_bond_d 0.006
    x_angle_deg 1.4
    x_dihedral_angle_d 22.2
     
    Coordinate Error
    Luzzati ESD(Observed) 0.2
    Luzzati Sigma A(Observed) 0.19
    Luzzati Resolution Cutoff(Low) 5.0
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2002
    Nucleic Acid Atoms 0
    Heterogen Atoms 9
    Solvent Atoms 136
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) CCP4 (SCALA)
    Structure Solution AMORE
    Structure Refinement X-PLOR 3.851
     
    Software
    refinement X-PLOR version: 3.851
    model building AMORE
    data reduction SCALA
    data collection MOSFLM