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X-RAY DIFFRACTION
Materials and Methods page
1QWH
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, SITTING DROP
    pH 5.8
    Temperature 298.0
    Details PEG 4000, 0.2 M Magnesium Nitrate , pH 5.8, VAPOR DIFFUSION, SITTING DROP, temperature 298K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 43.63 α = 90
    b = 86.05 β = 90
    c = 63.83 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 93
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 315
    Details Flat mirror (vertical focusing); single crystal Si(311) bent monochromator (ho rizontal focusing)
    Collection Date 2003-03-28
     
    Diffraction Radiation
    Monochromator single crystal Si(311)
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type SSRL BEAMLINE BL9-2
    Wavelength List 0.97945
    Site SSRL
    Beamline BL9-2
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 1.36
    Resolution(Low) 30
    Number Reflections(All) 48411
    Number Reflections(Observed) 48411
    Percent Possible(Observed) 92.4
    Redundancy 3.8
     
    High Resolution Shell Details
    Resolution(High) 1.36
    Resolution(Low) 29.88
    Percent Possible(All) 96.9
    Mean I Over Sigma(Observed) 2.8
    R-Sym I(Observed) 0.539
    Redundancy 3.7
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.36
    Resolution(Low) 29.88
    Number of Reflections(all) 48411
    Number of Reflections(Observed) 48380
    Number of Reflections(R-Free) 2427
    Percent Reflections(Observed) 92.34
    R-Factor(Observed) 0.21571
    R-Work 0.21534
    R-Free 0.22246
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 14.855
    Anisotropic B[1][1] -0.12
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -0.19
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 0.31
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.36
    Shell Resolution(Low) 1.395
    Number of Reflections(R-Free) 166
    Number of Reflections(R-Work) 3482
    R-Factor(R-Work) 0.252
    R-Factor(R-Free) 0.272
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_nbd_refined 0.207
    r_gen_planes_refined 0.008
    r_chiral_restr 0.099
    r_dihedral_angle_1_deg 5.987
    r_angle_refined_deg 1.56
    r_bond_refined_d 0.016
    r_xyhbond_nbd_refined 0.102
    r_symmetry_vdw_refined 0.151
    r_symmetry_hbond_refined 0.156
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1674
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 125
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) HKL-2000
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS
    Structure Refinement REFMAC 5.1.24
     
    Software
    refinement REFMAC version: 5.1.24