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X-RAY DIFFRACTION
Materials and Methods page
2Q8K
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 5
    Temperature 298.0
    Details 2.3 M Ammoniumsulfate, 0.1M Citric acid, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 73.89 α = 90
    b = 73.89 β = 90
    c = 183.35 γ = 90
     
    Space Group
    Space Group Name:    P 41 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 315
    Details MIRROR
    Collection Date 2006-04-22
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID23-1
    Wavelength List 0.980
    Site ESRF
    Beamline ID23-1
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 1.6
    Resolution(Low) 68
    Number Reflections(Observed) 67896
    Percent Possible(Observed) 99.8
    Redundancy 3.8
     
    High Resolution Shell Details
    Resolution(High) 1.6
    Resolution(Low) 1.69
    Percent Possible(All) 100.0
    Mean I Over Sigma(Observed) 2.8
    R-Sym I(Observed) 0.407
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.6
    Resolution(Low) 57.54
    Cut-off Sigma(I) 0.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 64263
    Number of Reflections(R-Free) 3451
    Percent Reflections(Observed) 99.73
    R-Factor(Observed) 0.18416
    R-Work 0.18235
    R-Free 0.21852
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 22.752
    Anisotropic B[1][1] 0.38
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.38
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -0.77
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.6
    Shell Resolution(Low) 1.642
    Number of Reflections(R-Free) 256
    Number of Reflections(R-Work) 4687
    R-Factor(R-Work) 0.245
    R-Factor(R-Free) 0.342
    Percent Reflections(Observed) 100.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_sphericity_bonded 4.251
    r_sphericity_free 4.331
    r_rigid_bond_restr 2.481
    r_scangle_it 3.752
    r_scbond_it 2.956
    r_mcangle_it 1.75
    r_mcbond_it 1.203
    r_nbd_refined 0.195
    r_gen_planes_refined 0.005
    r_chiral_restr 0.09
    r_dihedral_angle_4_deg 16.707
    r_dihedral_angle_3_deg 13.139
    r_dihedral_angle_2_deg 31.638
    r_dihedral_angle_1_deg 5.639
    r_angle_refined_deg 1.229
    r_bond_refined_d 0.011
    r_nbtor_refined 0.3
    r_xyhbond_nbd_refined 0.125
    r_symmetry_vdw_refined 0.213
    r_symmetry_hbond_refined 0.124
     
    Coordinate Error
    Luzzati ESD(Observed) 0.37
    Luzzati Sigma A(Observed) 0.35
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.39
    Luzzati Sigma A(R-Free Set) 0.32
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2764
    Nucleic Acid Atoms 0
    Heterogen Atoms 37
    Solvent Atoms 487
     
     
  •   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 5.3.0008
     
    Software
    refinement REFMAC version: 5.3.0008