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X-RAY DIFFRACTION
Materials and Methods page
1R9O
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 8.5
    Temperature 297.0
    Details PEG 8000, Hepes, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 297K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 91.05 α = 90
    b = 91.05 β = 90
    c = 169.48 γ = 120
     
    Space Group
    Space Group Name:    H 3
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 315
    Details Flat mirror (verticle focusing), single crystal Si(311) bent monochromator (horizontal focusing)
    Collection Date 2002-11-18
     
    Diffraction Radiation
    Monochromator Si (311)
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type SSRL BEAMLINE BL9-1
    Wavelength List 0.98
    Site SSRL
    Beamline BL9-1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2
    Resolution(Low) 50
    Number Reflections(All) 35440
    Number Reflections(Observed) 35418
    Percent Possible(Observed) 100.0
    B(Isotropic) From Wilson Plot 20.0
    Redundancy 5.5
     
    High Resolution Shell Details
    Resolution(High) 2.0
    Resolution(Low) 2.05
    Percent Possible(All) 99.9
    R Merge I(Observed) 0.082
    Mean I Over Sigma(Observed) 2.4
    R-Sym I(Observed) 0.406
    Redundancy 5.5
    Number Unique Reflections(All) 2614
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.0
    Resolution(Low) 50.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 35396
    Number of Reflections(Observed) 35396
    Number of Reflections(R-Free) 1772
    Percent Reflections(Observed) 99.8
    R-Factor(All) 0.194
    R-Factor(Observed) 0.194
    R-Work 0.191
    R-Free 0.236
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.0
    Shell Resolution(Low) 2.13
    Number of Reflections(Observed) 5597
    Number of Reflections(R-Free) 296
    R-Factor(R-Work) 0.253
    R-Factor(R-Free) 0.291
    R-Free Error 0.017
    Percent Reflections(Observed) 100.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 1.91
    c_dihedral_angle_d 21.9
    c_angle_deg 2.7
    c_bond_d 0.052
     
    Coordinate Error
    Luzzati ESD(Observed) 0.22
    Luzzati Sigma A(Observed) 0.21
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.29
    Luzzati Sigma A(R-Free Set) 0.26
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 3650
    Nucleic Acid Atoms 0
    Heterogen Atoms 67
    Solvent Atoms 255
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) CCP4 (SCALA)
    Structure Solution AMORE
    Structure Refinement CNS
     
    Software
    refinement CNS
    model building AMoRE
    data reduction SCALA
    data collection MOSFLM