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X-RAY DIFFRACTION
Materials and Methods page
1PTZ
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7.5
    Temperature 294.0
    Details ammonium sulphate, sodium chloride, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 111.2 α = 90
    b = 47.53 β = 97.99
    c = 56.04 γ = 90
     
    Space Group
    Space Group Name:    C 1 2 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 96
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 4
    Collection Date 1999-03-23
     
    Diffraction Radiation
    Monochromator GRAPHITE
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X12B
    Wavelength List 0.9780
    Site NSLS
    Beamline X12B
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 1.8
    Resolution(Low) 29.05
    Number Reflections(All) 25294
    Number Reflections(Observed) 25294
    Percent Possible(Observed) 97.4
    B(Isotropic) From Wilson Plot 17.6
    Redundancy 3.15
     
    High Resolution Shell Details
    Resolution(High) 1.8
    Resolution(Low) 1.86
    Percent Possible(All) 97.9
    Mean I Over Sigma(Observed) 4.72
    R-Sym I(Observed) 0.185
    Redundancy 3.13
    Number Unique Reflections(All) 2524
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.8
    Resolution(Low) 29.05
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 25294
    Number of Reflections(Observed) 25294
    Number of Reflections(R-Free) 2506
    Percent Reflections(Observed) 96.1
    R-Factor(Observed) 0.186
    R-Work 0.186
    R-Free 0.215
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 24.7
    Anisotropic B[1][1] 1.0
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 4.55
    Anisotropic B[2][2] 5.67
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -6.67
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.8
    Shell Resolution(Low) 1.86
    Number of Reflections(R-Free) 128
    Number of Reflections(R-Work) 1403
    R-Factor(R-Work) 0.23
    R-Factor(R-Free) 0.283
    R-Free Error 0.025
    Percent Reflections(Observed) 56.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 3.25
    c_scbond_it 2.21
    c_mcangle_it 1.82
    c_mcbond_it 1.21
    c_improper_angle_d 0.67
    c_dihedral_angle_d 25.2
    c_angle_deg 1.3
    c_bond_d 0.024
     
    Coordinate Error
    Luzzati ESD(Observed) 0.19
    Luzzati Sigma A(Observed) 0.11
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.23
    Luzzati Sigma A(R-Free Set) 0.15
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2220
    Nucleic Acid Atoms 0
    Heterogen Atoms 9
    Solvent Atoms 221
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution AMORE
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1
    model building AMoRE
    data reduction SCALEPACK
    data collection DENZO