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An Information Portal to 105097 Biological Macromolecular Structures

X-RAY DIFFRACTION
Materials and Methods page
1PAH
  •   Crystallization Hide
    Crystallization Experiments
    pH 6.8
    Details pH 6.8
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 66.6 α = 90
    b = 108.4 β = 90
    c = 125.7 γ = 90
     
    Space Group
    Space Group Name:    C 2 2 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 293
     
    Diffraction Detector
    Detector IMAGEPLATE
    Type MARRESEARCH
    Details DUEL SLITS
    Collection Date 1996-05
     
    Diffraction Radiation
    Monochromator NI FILTER
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE BM1A
    Wavelength 0.873
    Site ESRF
    Beamline BM1A
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 2.0
    Resolution(High) 2
    Resolution(Low) 20
    Number Reflections(Observed) 30932
    Percent Possible(Observed) 99.7
    R Merge I(Observed) 0.048
    B(Isotropic) From Wilson Plot 23.3
    Redundancy 5.9
     
    High Resolution Shell Details
    Resolution(High) 2.0
    Resolution(Low) 2.07
    Percent Possible(All) 99.1
    R Merge I(Observed) 0.39
    Mean I Over Sigma(Observed) 20.0
    R-Sym I(Observed) 0.398
    Redundancy 4.0
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.0
    Resolution(Low) 20.0
    Cut-off Sigma(F) 2.0
    Number of Reflections(Observed) 27870
    Number of Reflections(R-Free) 2799
    Percent Reflections(Observed) 99.7
    R-Factor(Observed) 0.176
    R-Work 0.176
    R-Free 0.218
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 30.4
    Anisotropic B[1][1] 2.44
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 2.15
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 5.4
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.0
    Shell Resolution(Low) 2.09
    Number of Reflections(R-Free) 307
    Number of Reflections(R-Work) 2667
    R-Factor(R-Work) 0.23
    R-Factor(R-Free) 0.26
    R-Free Error 0.015
    Percent Reflections(Observed) 99.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 0.726
    x_bond_d 0.09
    x_angle_deg 1.346
    x_dihedral_angle_d 25.07
     
    Coordinate Error
    Luzzati ESD(Observed) 0.22
    Luzzati Sigma A(Observed) 0.21
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.26
    Luzzati Sigma A(R-Free Set) 0.21
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2525
    Nucleic Acid Atoms 0
    Heterogen Atoms 1
    Solvent Atoms 58
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution X-PLOR 3.851
    Structure Refinement X-PLOR 3.851
     
    Software
    refinement X-PLOR version: 3.851
    model building X-PLOR version: 3.851