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X-RAY DIFFRACTION
Materials and Methods page
1FFK
  •   Crystallization Hide
    Crystallization Experiments
    Method backextraction, vapor diffusion
    pH 5.8
    Temperature 292.0
    Details PEG 6000, KCl, NH4Cl, MgCl2, CdCl2, potassium acetate, Tris-MES, pH 5.8, backextraction, vapor diffusion, temperature 292K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 211.66 α = 90
    b = 299.67 β = 90
    c = 573.77 γ = 90
     
    Space Group
    Space Group Name:    C 2 2 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
    Diffrn ID 2
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type CUSTOM-MADE
    Collection Date 2000-04-01
    Detector IMAGE PLATE
    Type MARRESEARCH
    Collection Date 2000-02-25
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type APS BEAMLINE 19-ID
    Wavelength 1.0
    Site APS
    Beamline 19-ID
    Source SYNCHROTRON
    Type NSLS BEAMLINE X25
    Wavelength 0.9
    Site NSLS
    Beamline X25
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 2.4
    Resolution(Low) 90
    Number Reflections(All) 666819
    Number Reflections(Observed) 666819
    Percent Possible(Observed) 95.6
    R Merge I(Observed) 0.086
    B(Isotropic) From Wilson Plot 47.7
    Redundancy 9.1
     
    High Resolution Shell Details
    Resolution(High) 2.4
    Resolution(Low) 2.5
    Percent Possible(All) 73.5
    R Merge I(Observed) 0.691
    Redundancy 6.0
    Number Unique Reflections(All) 50941
     
     
  •   Refinement Hide
    Refinement Statistics
    reflnsShellList 2.4
    Resolution(Low) 90.0
    Cut-off Sigma(F) 2.0
    Number of Reflections(all) 666819
    Number of Reflections(Observed) 577304
    Number of Reflections(R-Free) 5661
    Percent Reflections(Observed) 82.3
    R-Work 0.252
    R-Free 0.261
    R-Free Selection Details random
     
    Temperature Factor Modeling
    Anisotropic B[1][1] -5.633
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 1.0
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 4.633
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_torsion_impr_deg 1.6862
    c_torsion_deg 28.8193
    c_angle_deg 1.19599
    c_bond_d 0.006422
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 3656
    Nucleic Acid Atoms 60612
    Heterogen Atoms 7
    Solvent Atoms 6
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS
    Structure Refinement TNT, CNS
     
    Software
    refinement TNT version: & CNS
    model building CNS
    data reduction SCALEPACK
    data collection DENZO