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X-RAY DIFFRACTION
Materials and Methods page
1RC7
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7.5
    Temperature 292.0
    Details PEG4000, Tris-HCl, Sodium Chloride, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 292K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 58.29 α = 90
    b = 118.14 β = 90
    c = 106.67 γ = 90
     
    Space Group
    Space Group Name:    C 2 2 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type BRUKER PROTEUM 300
    Details Mirror
    Collection Date 2003-07-05
     
    Diffraction Radiation
    Monochromator Silicon
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type APS BEAMLINE 22-ID
    Wavelength List 1.000
    Site APS
    Beamline 22-ID
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.15
    Resolution(Low) 28.47
    Number Reflections(All) 20431
    Number Reflections(Observed) 18715
    Percent Possible(Observed) 91.6
    R Merge I(Observed) 0.058
    B(Isotropic) From Wilson Plot 44.7
    Redundancy 5.05
     
    High Resolution Shell Details
    Resolution(High) 2.15
    Resolution(Low) 2.28
    Percent Possible(All) 71.2
    R Merge I(Observed) 0.262
    Mean I Over Sigma(Observed) 1.8
    Redundancy 2.5
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.15
    Resolution(Low) 28.47
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 20431
    Number of Reflections(Observed) 18715
    Number of Reflections(R-Free) 1091
    Percent Reflections(Observed) 91.6
    R-Factor(Observed) 0.192
    R-Work 0.192
    R-Free 0.242
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 47.2
    Anisotropic B[1][1] 5.42
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -4.31
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -1.11
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.15
    Shell Resolution(Low) 2.28
    Number of Reflections(R-Free) 135
    Number of Reflections(R-Work) 2251
    R-Factor(R-Work) 0.323
    R-Factor(R-Free) 0.421
    R-Free Error 0.036
    Percent Reflections(Observed) 71.2
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 6.45
    c_scbond_it 4.99
    c_mcangle_it 4.29
    c_mcbond_it 3.47
    c_improper_angle_d 0.96
    c_bond_d 0.005
    c_angle_deg 1.0
    c_dihedral_angle_d 15.3
     
    Coordinate Error
    Luzzati ESD(Observed) 0.26
    Luzzati Sigma A(Observed) 0.29
    Luzzati Resolution Cutoff(Low) 30.0
    Luzzati ESD(R-Free Set) 0.35
    Luzzati Sigma A(R-Free Set) 0.37
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1838
    Nucleic Acid Atoms 848
    Heterogen Atoms 8
    Solvent Atoms 236
     
     
  •   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 CNS version: 1.0