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X-RAY DIFFRACTION
Materials and Methods page
1P5E
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, SITTING DROP
    pH 7
    Temperature 277.0
    Details 10 mg/ml pCDK2/cyclin A, 0.5 mM TBS, 1.25 M Ammonium Sulphate, 0.85 M KCl, HEPES 100mM, pH 7, VAPOR DIFFUSION, SITTING DROP, temperature 277K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 73.54 α = 90
    b = 133.95 β = 90
    c = 148.42 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 4
    Collection Date 2001-04-29
     
    Diffraction Radiation
    Monochromator Si 111 CHANNEL
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID14-1
    Wavelength List 0.934
    Site ESRF
    Beamline ID14-1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 1.0
    Observed Criterion Sigma(I) 1.0
    Resolution(High) 2.22
    Resolution(Low) 46.97
    Number Reflections(All) 73111
    Number Reflections(Observed) 72014
    Percent Possible(Observed) 98.5
    R Merge I(Observed) 0.074
    B(Isotropic) From Wilson Plot 30.8
    Redundancy 2.8
     
    High Resolution Shell Details
    Resolution(High) 2.22
    Resolution(Low) 2.3
    Percent Possible(All) 98.6
    R Merge I(Observed) 0.334
    Mean I Over Sigma(Observed) 3.2
    R-Sym I(Observed) 0.232
    Redundancy 2.22
    Number Unique Reflections(All) 6238
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.22
    Resolution(Low) 46.97
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 67955
    Number of Reflections(Observed) 62398
    Number of Reflections(R-Free) 5557
    Percent Reflections(Observed) 92.8
    R-Factor(All) 0.229
    R-Factor(Observed) 0.219
    R-Work 0.219
    R-Free 0.257
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 38.2
    Anisotropic B[1][1] -0.53
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.03
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 0.5
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.22
    Shell Resolution(Low) 2.36
    Number of Reflections(R-Free) 778
    Number of Reflections(R-Work) 8571
    R-Factor(R-Work) 0.254
    R-Factor(R-Free) 0.294
    R-Free Error 0.011
    Percent Reflections(Observed) 77.8
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 3.2
    c_scbond_it 2.19
    c_mcangle_it 2.25
    c_mcbond_it 1.37
    c_improper_angle_d 0.98
    c_dihedral_angle_d 21.4
    c_angle_deg 1.5
    c_bond_d 0.006
     
    Coordinate Error
    Luzzati ESD(Observed) 0.28
    Luzzati Sigma A(Observed) 0.22
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.32
    Luzzati Sigma A(R-Free Set) 0.29
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 8944
    Nucleic Acid Atoms 0
    Heterogen Atoms 26
    Solvent Atoms 242
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) CCP4 (SCALA)
    Structure Solution CNS
    Structure Refinement CNS 1.0
     
    Software
    refinement CNS version: 1.0
    model building CNS
    data reduction SCALA
    data collection MOSFLM