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X-RAY DIFFRACTION
Materials and Methods page
1NC6
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7.75
    Temperature 298.0
    Details magnesium chloride, pH 7.75, VAPOR DIFFUSION, HANGING DROP, temperature 298K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 54.67 α = 90
    b = 54.67 β = 90
    c = 107.87 γ = 120
     
    Space Group
    Space Group Name:    P 31 2 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU RAXIS IV
    Details mirrors
    Collection Date 2000-03-15
     
    Diffraction Radiation
    Monochromator YALE MIRRORS
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Wavelength List 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 3.0
    Observed Criterion Sigma(I) 3.0
    Resolution(High) 1.9
    Resolution(Low) 99
    Number Reflections(All) 15217
    Number Reflections(Observed) 15384
    Percent Possible(Observed) 98.9
    B(Isotropic) From Wilson Plot 10.5
     
    High Resolution Shell Details
    Resolution(High) 1.9
    Resolution(Low) 2.02
    Percent Possible(All) 97.6
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.9
    Resolution(Low) 17.9
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 15186
    Number of Reflections(Observed) 15186
    Number of Reflections(R-Free) 1538
    Percent Reflections(Observed) 99.3
    R-Factor(Observed) 0.175
    R-Work 0.175
    R-Free 0.206
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 16.2
    Anisotropic B[1][1] 0.52
    Anisotropic B[1][2] 0.03
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.52
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -1.04
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.9
    Shell Resolution(Low) 2.02
    Number of Reflections(R-Free) 249
    Number of Reflections(R-Work) 2190
    R-Factor(R-Work) 0.2
    R-Factor(R-Free) 0.236
    R-Free Error 0.015
    Percent Reflections(Observed) 97.6
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 1.85
    c_scbond_it 1.28
    c_mcangle_it 1.21
    c_mcbond_it 0.78
    c_improper_angle_d 1.09
    c_dihedral_angle_d 24.8
    c_angle_deg 1.5
    c_bond_d 0.011
     
    Coordinate Error
    Luzzati ESD(Observed) 0.18
    Luzzati Sigma A(Observed) 0.12
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.22
    Luzzati Sigma A(R-Free Set) 0.16
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1629
    Nucleic Acid Atoms 0
    Heterogen Atoms 37
    Solvent Atoms 223
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution AMORE
    Structure Refinement CNS 1.0
     
    Software
    refinement XPLOR3.1
    model building AMoRE
    data reduction SCALEPACK
    data collection DENZO