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X-RAY DIFFRACTION
Materials and Methods page
3QG2
  •   Crystallization Hide
    Crystallization Experiments
    Method microbatch
    pH 4.6
    Temperature 297.0
    Details 0.1mM sodium acetate, 25% (w/v) PEG 4000, 0.2M ammonium acetate, pH 4.6, microbatch, temperature 297K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 56.49 α = 90
    b = 155.27 β = 90
    c = 164.99 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type Nonius Kappa CCD
    Collection Date 2003-09-11
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type ENRAF-NONIUS FR591
    Wavelength List 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2.2
    Resolution(Low) 50
    Number Reflections(Observed) 74012
    Percent Possible(Observed) 99.1
    R Merge I(Observed) 0.088
    B(Isotropic) From Wilson Plot 29.0
     
    High Resolution Shell Details
    Resolution(High) 2.2
    Resolution(Low) 2.28
    Percent Possible(All) 91.6
    R Merge I(Observed) 0.542
    Number Unique Reflections(All) 6742
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.3
    Resolution(Low) 49.39
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 65378
    Number of Reflections(R-Free) 3294
    Percent Reflections(Observed) 99.9
    R-Work 0.198
    R-Free 0.233
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 41.0859
    Anisotropic B[1][1] 5.84
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 5.47
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -11.31
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.3
    Shell Resolution(Low) 2.38
    Number of Reflections(R-Free) 310
    Number of Reflections(R-Work) 6101
    R-Factor(R-Work) 0.272
    R-Factor(R-Free) 0.324
    R-Free Error 0.018
    Percent Reflections(Observed) 99.5
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 2.9
    c_scbond_it 1.99
    c_mcangle_it 2.52
    c_mcbond_it 1.48
    c_improper_angle_d 0.72
    c_dihedral_angle_d 22.6
    c_angle_deg 1.4
    c_bond_d 0.006
     
    Coordinate Error
    Luzzati ESD(Observed) 0.25
    Luzzati Sigma A(Observed) 0.26
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.31
    Luzzati Sigma A(R-Free Set) 0.32
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 9058
    Nucleic Acid Atoms 0
    Heterogen Atoms 170
    Solvent Atoms 529
     
     
  •   Software and Computing Hide
    Computing
    Data Collection HKL-2000
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution AMoRE
    Structure Refinement CNS 1.2
     
    Software
    data extraction pdb_extract version: 3.10
    refinement CNS version: 1.2
    data scaling SCALEPACK