POP-OUT | CLOSE
 
X-RAY DIFFRACTION
Materials and Methods page
1KW0
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 6.8
    Temperature 277.0
    Details 20% PEG 2000, 10% ethylene glycol 0.12M Na-Hepes pH 6.8, 30mM Na-dithionite, 10mM BH4, VAPOR DIFFUSION, HANGING DROP, temperature 277K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 65.17 α = 90
    b = 106.74 β = 90
    c = 123.44 γ = 90
     
    Space Group
    Space Group Name:    C 2 2 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MAR scanner 345 mm plate
    Details mirrors
    Collection Date 2001-04-08
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE BM1A
    Wavelength List 0.8000
    Site ESRF
    Beamline BM1A
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.5
    Resolution(Low) 10
    Number Reflections(All) 14178
    Number Reflections(Observed) 14178
    Percent Possible(Observed) 94.4
    R Merge I(Observed) 0.092
    B(Isotropic) From Wilson Plot 41.3
    Redundancy 4.2
     
    High Resolution Shell Details
    Resolution(High) 2.5
    Resolution(Low) 2.64
    Percent Possible(All) 95.2
    R Merge I(Observed) 0.377
    Mean I Over Sigma(Observed) 2.1
    R-Sym I(Observed) 0.377
    Redundancy 4.1
    Number Unique Reflections(All) 2071
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method adopting entry 1PAH phases
    reflnsShellList 2.5
    Resolution(Low) 10.0
    Cut-off Sigma(I) 0.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 14178
    Number of Reflections(Observed) 14178
    Number of Reflections(R-Free) 1436
    Percent Reflections(Observed) 100.0
    R-Work 0.22
    R-Free 0.267
    R-Free Selection Details Random
     
    Temperature Factor Modeling
    Isotropic Thermal Model isotropic
    Mean Isotropic B Value 34.3
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.5
    Shell Resolution(Low) 2.53
    Number of Reflections(Observed) 492
    Number of Reflections(R-Free) 43
    R-Factor(R-Work) 0.273
    R-Factor(R-Free) 0.341
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 0.87
    c_dihedral_angle_d 21.9
    c_angle_deg 1.12
    c_bond_d 0.007
     
    Coordinate Error
    Luzzati ESD(Observed) 0.35
    Luzzati Sigma A(Observed) 0.29
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2517
    Nucleic Acid Atoms 0
    Heterogen Atoms 29
    Solvent Atoms 39
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MAR
    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 MAR