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X-RAY DIFFRACTION
Materials and Methods page
1L2P
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, SITTING DROP
    pH 5
    Temperature 18.0
    Details 30% ISOPROPANOL, 45% 2-METHYL-2,4-PENTANEDIOL, pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 18.0K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 35.7 α = 90
    b = 40.76 β = 90
    c = 42.35 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 4
    Collection Date 2000-08-20
     
    Diffraction Radiation
    Monochromator Horizontally Bent Si(111)
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type CHESS BEAMLINE F1
    Wavelength List 0.99203
    Site CHESS
    Beamline F1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 1.55
    Resolution(Low) 30
    Number Reflections(All) 9429
    Number Reflections(Observed) 9325
    Percent Possible(Observed) 98.9
    R Merge I(Observed) 0.027
    B(Isotropic) From Wilson Plot 23.2
    Redundancy 5.4
     
    High Resolution Shell Details
    Resolution(High) 1.55
    Resolution(Low) 1.61
    Percent Possible(All) 91.8
    R Merge I(Observed) 0.117
    Redundancy 4.3
    Number Unique Reflections(All) 835
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MIR
    reflnsShellList 1.55
    Resolution(Low) 29.37
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 9429
    Number of Reflections(Observed) 9325
    Number of Reflections(R-Free) 972
    Percent Reflections(Observed) 98.9
    R-Factor(All) 0.285
    R-Factor(Observed) 0.285
    R-Work 0.282
    R-Free 0.313
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 29.0
    Anisotropic B[1][1] 5.81
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 3.43
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -9.24
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.55
    Shell Resolution(Low) 1.65
    Number of Reflections(Observed) 1442
    Number of Reflections(R-Free) 147
    Number of Reflections(R-Work) 1295
    R-Factor(R-Work) 0.292
    R-Factor(R-Free) 0.336
    R-Free Error 0.028
    Percent Reflections(Observed) 93.8
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 5.5
    c_scbond_it 3.36
    c_mcangle_it 1.9
    c_mcbond_it 1.36
    c_improper_angle_d 0.63
    c_bond_d 0.005
    c_angle_deg 0.7
    c_dihedral_angle_d 13.1
     
    Coordinate Error
    Luzzati ESD(Observed) 0.24
    Luzzati Sigma A(Observed) 0.15
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.28
    Luzzati Sigma A(R-Free Set) 0.16
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 494
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 54
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution MLPHARE
    Structure Refinement CNS 1.0
     
    Software
    refinement CNS version: 1.0
    model building MLPHARE