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X-RAY DIFFRACTION
Materials and Methods page
1K5A
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 5.6
    Temperature 289.0
    Details ammonium actate, sodium citrate, PEG 4000, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 289K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 88.12 α = 90
    b = 41.16 β = 90
    c = 33.66 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 293
     
    Diffraction Detector
    Detector AREA DETECTOR
    Type XENTRONICS
    Collection Date 1996-12-20
     
    Diffraction Radiation
    Monochromator GRAPHITE
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type SIEMENS
    Wavelength List 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) -3.0
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 2.3
    Resolution(Low) 35
    Number Reflections(All) 5235
    Number Reflections(Observed) 5235
    Percent Possible(Observed) 88.0
    B(Isotropic) From Wilson Plot 34.9
    Redundancy 4.6
     
    High Resolution Shell Details
    Resolution(High) 2.3
    Resolution(Low) 2.4
    Percent Possible(All) 32.0
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.33
    Resolution(Low) 20.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 5222
    Number of Reflections(Observed) 5222
    Number of Reflections(R-Free) 286
    Percent Reflections(Observed) 93.1
    R-Factor(All) 0.193
    R-Factor(Observed) 0.193
    R-Work 0.193
    R-Free 0.281
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 32.1
    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) 2.33
    Shell Resolution(Low) 2.48
    Number of Reflections(Observed) 560
    Number of Reflections(R-Free) 34
    Number of Reflections(R-Work) 560
    R-Factor(R-Work) 0.294
    R-Factor(R-Free) 0.306
    R-Free Error 0.052
    Percent Reflections(Observed) 66.1
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_scangle_it 7.34
    x_scbond_it 4.7
    x_mcangle_it 4.36
    x_mcbond_it 2.74
    x_improper_angle_d 0.75
    x_dihedral_angle_d 27.9
    x_angle_deg 1.5
    x_bond_d 0.01
     
    Coordinate Error
    Luzzati ESD(Observed) 0.26
    Luzzati Sigma A(Observed) 0.33
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.4
    Luzzati Sigma A(R-Free Set) 0.46
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 937
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 41
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) XENGEN
    Data Reduction (data scaling) XDS
    Structure Solution AMORE
    Structure Refinement X-PLOR 3.851
     
    Software
    refinement X-PLOR(ONLINE) version: 3.851
    model building AMoRE
    data reduction XDS
    data collection XENGEN