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An Information Portal to 105212 Biological Macromolecular Structures

X-RAY DIFFRACTION
Materials and Methods page
1Q1F
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 4.6
    Temperature 293.0
    Details 0.1 M Na acetate, 2M Na formate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 86.97 α = 90
    b = 86.97 β = 90
    c = 110.82 γ = 120
     
    Space Group
    Space Group Name:    H 3 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type MARRESEARCH
    Collection Date 2003-06-12
     
    Diffraction Radiation
    Monochromator Si(111)and Si(220) followed by a toroidally focussing mirror
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ELETTRA BEAMLINE 5.2R
    Wavelength List 1.2, 1.7
    Site ELETTRA
    Beamline 5.2R
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 3.0
    Observed Criterion Sigma(I) 3.0
    Resolution(High) 1.5
    Resolution(Low) 40
    Number Reflections(All) 26718
    Number Reflections(Observed) 26076
    Percent Possible(Observed) 99.5
    R Merge I(Observed) 0.074
    B(Isotropic) From Wilson Plot 20.84
    Redundancy 10.8
     
    High Resolution Shell Details
    Resolution(High) 1.5
    Resolution(Low) 1.55
    Percent Possible(All) 100.0
    R Merge I(Observed) 0.536
    Mean I Over Sigma(Observed) 2.79
    R-Sym I(Observed) 0.533
    Redundancy 7.0
    Number Unique Reflections(All) 2563
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method SAD
    reflnsShellList 1.5
    Resolution(Low) 20.0
    Cut-off Sigma(I) 2.0
    Cut-off Sigma(F) 2.0
    Number of Reflections(all) 25971
    Number of Reflections(Observed) 24647
    Number of Reflections(R-Free) 1321
    Percent Reflections(Observed) 94.9
    R-Factor(All) 0.216
    R-Factor(Observed) 0.21
    R-Work 0.184
    R-Free 0.2075
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model anisotropic
    Mean Isotropic B Value 40.9
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.5
    Shell Resolution(Low) 20.0
    Number of Reflections(Observed) 25971
    Number of Reflections(R-Free) 1321
    R-Factor(R-Work) 0.184
    R-Factor(R-Free) 0.207
    Percent Reflections(Observed) 99.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_gen_planes_other 0.045
    r_angle_other_deg 0.037
    r_bond_other_d 0.015
     
    Coordinate Error
    Luzzati ESD(Observed) 0.202
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1172
    Nucleic Acid Atoms 0
    Heterogen Atoms 43
    Solvent Atoms 111
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) CCP4 (TRUNCATE)
    Structure Solution SOLVE
    Structure Refinement REFMAC
     
    Software
    refinement REFMAC
    model building SOLVE
    data reduction TRUNCATE
    data collection DENZO