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X-RAY DIFFRACTION
Materials and Methods page
1TT1
  •   Crystallization Hide
    Crystallization Experiments
    Method streak seeding
    pH 4
    Temperature 297.0
    Details 18% PEG 3350, 25 mM Citrate, 2 mM Malonate, 20 mM NaCl, 1 mM EDTA, 10 mM BME, pH 4.0, streak seeding, temperature 297K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 46.68 α = 90
    b = 106.23 β = 101.38
    c = 57.67 γ = 90
     
    Space Group
    Space Group Name:    P 1 21 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Details mirrors
    Collection Date 2004-06-14
     
    Diffraction Radiation
    Monochromator OSMIC MIRRORS
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU MICROMAX-002
    Wavelength List 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 2.0
    Observed Criterion Sigma(I) 1.0
    Resolution(High) 1.93
    Resolution(Low) 24.95
    Number Reflections(All) 41434
    Number Reflections(Observed) 41047
    Percent Possible(Observed) 99.3
    R Merge I(Observed) 0.074
    B(Isotropic) From Wilson Plot 16.6
    Redundancy 3.8
     
    High Resolution Shell Details
    Resolution(High) 1.93
    Resolution(Low) 2.0
    Percent Possible(All) 92.8
    R Merge I(Observed) 0.349
    Mean I Over Sigma(Observed) 4.07
    Redundancy 3.5
    Number Unique Reflections(All) 3835
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.93
    Resolution(Low) 24.95
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 41047
    Number of Reflections(Observed) 41047
    Number of Reflections(R-Free) 2054
    Percent Reflections(Observed) 99.2
    R-Factor(All) 0.1907
    R-Factor(Observed) 0.189
    R-Work 0.189
    R-Free 0.216
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 18.7
    Anisotropic B[1][1] 6.12
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] -0.68
    Anisotropic B[2][2] -3.23
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -2.88
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.93
    Shell Resolution(Low) 2.05
    Number of Reflections(R-Free) 322
    Number of Reflections(R-Work) 6253
    R-Factor(R-Work) 0.219
    R-Factor(R-Free) 0.255
    R-Free Error 0.014
    Percent Reflections(Observed) 96.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 0.91
    c_dihedral_angle_d 21.4
    c_angle_deg 1.3
    c_bond_d 0.007
     
    Coordinate Error
    Luzzati ESD(Observed) 0.2
    Luzzati Sigma A(Observed) 0.13
    Luzzati Resolution Cutoff(Low) 26.0
    Luzzati ESD(R-Free Set) 0.25
    Luzzati Sigma A(R-Free Set) 0.17
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 4024
    Nucleic Acid Atoms 0
    Heterogen Atoms 30
    Solvent Atoms 420
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) HKL-2000
    Data Reduction (data scaling) SCALEPACK
    Structure Solution AMORE
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1