POP-OUT | CLOSE
 
X-RAY DIFFRACTION
Materials and Methods page
1G31
  •   Crystallization Hide
    Crystallization Experiments
    Details PROTEIN WAS CRYSTALLIZED AT 17 MG/ML FROM 0.42 M NAH(2)PO(4), 1.70 M K(2)HPO(4), 10 MM BES, 6 MM DTT, 0.035% NAN(3), 29% ETHYLENE GLYCOL.
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 157.68 α = 90
    b = 157.68 β = 90
    c = 90.93 γ = 90
     
    Space Group
    Space Group Name:    P 42 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type PRINCETON 2K
    Details BENT FOCUSING MIRRORS
    Collection Date 1997-01
     
    Diffraction Radiation
    Monochromator SI(111)
     
    Diffraction Source
    Source SYNCHROTRON
    Type CHESS BEAMLINE F1
    Wavelength 0.918
    Site CHESS
    Beamline F1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 1.0
    Resolution(High) 2.3
    Resolution(Low) 20
    Number Reflections(Observed) 42831
    Percent Possible(Observed) 83.5
    B(Isotropic) From Wilson Plot 25.2
    Redundancy 5.95
     
    High Resolution Shell Details
    Resolution(High) 2.3
    Resolution(Low) 2.4
    Percent Possible(All) 65.0
    Mean I Over Sigma(Observed) 1.9
    R-Sym I(Observed) 0.39
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.3
    Resolution(Low) 20.0
    Cut-off Sigma(F) 1.0
    Number of Reflections(Observed) 42831
    Number of Reflections(R-Free) 4277
    Percent Reflections(Observed) 83.5
    R-Factor(Observed) 0.225
    R-Work 0.225
    R-Free 0.254
    R-Free Selection Details SHELLS
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 61.6
    Anisotropic B[1][1] -3.22
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -3.22
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 6.44
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.3
    Shell Resolution(Low) 2.4
    Number of Reflections(R-Free) 292
    Number of Reflections(R-Work) 3853
    R-Factor(R-Work) 0.353
    R-Factor(R-Free) 0.395
    R-Free Error 0.023
    Percent Reflections(Observed) 65.6
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_scangle_it 11.74
    x_scbond_it 7.92
    x_mcangle_it 7.13
    x_mcbond_it 4.75
    x_improper_angle_d 1.46
    x_bond_d 0.012
    x_angle_deg 1.6
    x_dihedral_angle_d 25.8
     
    Coordinate Error
    Luzzati ESD(Observed) 0.31
    Luzzati Sigma A(Observed) 0.44
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.34
    Luzzati Sigma A(R-Free Set) 0.48
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 5698
    Nucleic Acid Atoms 0
    Heterogen Atoms 100
    Solvent Atoms 469
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution X-PLOR 3.1
    Structure Refinement X-PLOR 3.1
     
    Software
    refinement X-PLOR version: 3.1
    model building X-PLOR version: 3.1