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An Information Portal to 109093 Biological Macromolecular Structures

X-RAY DIFFRACTION
Materials and Methods page
4ETR
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 4.6
    Temperature 293.0
    Details 19% PEG10K, 100 mM Na-acetate pH 4.6, SrCl2 20mM, VAPOR DIFFUSION, HANGING DROP, temperature 293K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 40.58 α = 90
    b = 71.22 β = 111.62
    c = 48.78 γ = 90
     
    Space Group
    Space Group Name:    P 1 21 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 110
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 315r
    Details mirrors
    Collection Date 2009-04-17
     
    Diffraction Radiation
    Monochromator Si 111 CHANNEL
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID23-1
    Wavelength List 0.976250
    Site ESRF
    Beamline ID23-1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 2.6
    Observed Criterion Sigma(I) 2.6
    Resolution(High) 2.25
    Resolution(Low) 45.36
    Number Reflections(All) 12342
    Number Reflections(Observed) 11947
    Percent Possible(Observed) 96.8
    R Merge I(Observed) 0.092
    B(Isotropic) From Wilson Plot 36.5
    Redundancy 3.5
     
    High Resolution Shell Details
    Resolution(High) 2.25
    Resolution(Low) 2.37
    Percent Possible(All) 96.2
    R Merge I(Observed) 0.485
    Mean I Over Sigma(Observed) 2.6
    R-Sym I(Observed) 0.485
    Redundancy 3.5
    Number Unique Reflections(All) 1726
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.25
    Resolution(Low) 45.35
    Cut-off Sigma(I) 2.6
    Number of Reflections(all) 12342
    Number of Reflections(Observed) 11347
    Number of Reflections(R-Free) 592
    Percent Reflections(Observed) 96.74
    R-Factor(All) 0.22381
    R-Factor(Observed) 0.22381
    R-Work 0.22079
    R-Free 0.28474
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model Isotropic
    Mean Isotropic B Value 40.997
    Anisotropic B[1][1] 5.93
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 3.1
    Anisotropic B[2][2] -2.77
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -0.88
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.25
    Shell Resolution(Low) 2.308
    Number of Reflections(Observed) 1726
    Number of Reflections(R-Free) 37
    Number of Reflections(R-Work) 837
    R-Factor(R-Work) 0.375
    R-Factor(R-Free) 0.41
    Percent Reflections(Observed) 96.15
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_scangle_it 4.254
    r_scbond_it 2.495
    r_mcangle_it 1.566
    r_mcbond_it 0.816
    r_gen_planes_refined 0.006
    r_chiral_restr 0.092
    r_dihedral_angle_4_deg 16.455
    r_dihedral_angle_3_deg 18.698
    r_dihedral_angle_2_deg 34.55
    r_dihedral_angle_1_deg 5.816
    r_angle_refined_deg 1.507
    r_bond_refined_d 0.015
     
    Coordinate Error
    Luzzati ESD(R-Free Set) 0.272
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1908
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 21
     
     
  •   Software and Computing Hide
    Computing
    Data Collection ADSC Quantum
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) SCALA
    Structure Solution PHASER
    Structure Refinement REFMAC 5.5.0110
     
    Software
    refinement REFMAC version: 5.5.0110
    model building PHASER
    data collection ADSC version: Quantum