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X-RAY DIFFRACTION
Materials and Methods page
1GC1
  •   Crystallization Hide
    Crystallization Experiments
    Method vapor diffusion
    pH 7
    Details VAPOUR DIFFUSION CRYSTALLIZATION: 0.5 UL OF PROTEIN (~10MG/ML IN 350 MM NACL, 5 MM TRISCL PH 7.0) + 0.4 UL OF 0.1 M NACITRATE, 0.02 M NAHEPES, 10% ISOPROPANOL, 10.5% MONOMETHYL-PEG 5000, 0.0075% SEAPREP AGAROSE, PH 6.4 OVER A RESERVOIR OF 0.35 M NACL, 0.1 M NACITRATE, 0.02 M NAHEPES, 10% ISOPROPANOL, 10.5% MONOMETHYL-PEG 5000, PH 6.4, vapor diffusion
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 71.64 α = 90
    b = 88.13 β = 90
    c = 196.7 γ = 90
     
    Space Group
    Space Group Name:    P 2 2 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type FUJI
    Details MIRRORS
    Collection Date 1996-08
     
    Diffraction Radiation
    Monochromator SILICON CRYSTAL
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X4A
    Wavelength 1.00614
    Site NSLS
    Beamline X4A
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) -0.5
    Resolution(High) 2.5
    Resolution(Low) 20
    Number Reflections(Observed) 37724
    Percent Possible(Observed) 86.0
    Redundancy 3.0
     
    High Resolution Shell Details
    Resolution(High) 2.5
    Resolution(Low) 2.59
    Percent Possible(All) 62.8
    Mean I Over Sigma(Observed) 2.17
    R-Sym I(Observed) 0.247
    Redundancy 1.56
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT + MULTIPLE ISOMORPHOUS REPLACEMENT + DENSITY MODIFICATION
    reflnsShellList 2.5
    Resolution(Low) 5.0
    Cut-off Sigma(F) 2.0
    Number of Reflections(Observed) 28620
    Number of Reflections(R-Free) 1430
    Percent Reflections(Observed) 74.9
    R-Factor(Observed) 0.2103
    R-Work 0.2103
    R-Free 0.302
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 21.0
    Anisotropic B[1][1] 0.0
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.0
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 0.0
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.5
    Shell Resolution(Low) 2.58
    Number of Reflections(R-Free) 92
    Number of Reflections(R-Work) 1518
    R-Factor(R-Work) 0.2876
    R-Factor(R-Free) 0.3878
    Percent Reflections(Observed) 42.3
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_scangle_it 3.01
    x_scbond_it 1.97
    x_mcangle_it 2.31
    x_mcbond_it 1.33
    x_bond_d 0.007
    x_angle_deg 1.59
     
    Coordinate Error
    Luzzati Resolution Cutoff(Low) 5.0
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 7080
    Nucleic Acid Atoms 0
    Heterogen Atoms 194
    Solvent Atoms 603
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution X-PLOR 3.8
    Structure Refinement X-PLOR 3.8
     
    Software
    refinement X-PLOR version: 3.8
    model building X-PLOR version: 3.8
    data reduction SCALEPACK
    data collection DENZO