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X-RAY DIFFRACTION
Materials and Methods page
4BHH
  •   Crystallization Hide
    Crystallization Experiments
    pH 9
    Details 0.1 M BICINE PH 9 AND 10% PEG 5K MME PROTEIN:RNA RATIO 4:1.2
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 82.95 α = 90
    b = 86.46 β = 106.63
    c = 90.19 γ = 90
     
    Space Group
    Space Group Name:    P 1 21 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD (MAR225)
    Type MARRESEARCH
    Collection Date 2012-11-21
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID23-2
    Wavelength 0.8726
    Site ESRF
    Beamline ID23-2
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 3.4
    Resolution(Low) 50
    Number Reflections(Observed) 18433
    Percent Possible(Observed) 99.6
    R Merge I(Observed) 0.18
    Redundancy 3.4
     
    High Resolution Shell Details
    Resolution(High) 3.4
    Resolution(Low) 3.5
    Percent Possible(All) 99.6
    R Merge I(Observed) 0.79
    Mean I Over Sigma(Observed) 1.89
    Redundancy 3.4
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 3.4
    Resolution(Low) 44.35
    Number of Reflections(Observed) 16130
    Number of Reflections(R-Free) 867
    Percent Reflections(Observed) 99.7
    R-Factor(Observed) 0.20098
    R-Work 0.19827
    R-Free 0.25213
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 83.212
    Anisotropic B[1][1] -8.05
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 1.55
    Anisotropic B[2][2] -5.29
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 10.93
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.4
    Shell Resolution(Low) 3.488
    Number of Reflections(R-Free) 63
    Number of Reflections(R-Work) 1197
    R-Factor(R-Work) 0.324
    R-Factor(R-Free) 0.373
    Percent Reflections(Observed) 99.76
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_gen_planes_other 0.001
    r_gen_planes_refined 0.004
    r_chiral_restr 0.067
    r_dihedral_angle_4_deg 12.848
    r_dihedral_angle_3_deg 16.572
    r_dihedral_angle_2_deg 38.065
    r_dihedral_angle_1_deg 6.386
    r_angle_other_deg 0.864
    r_angle_refined_deg 1.12
    r_bond_other_d 0.004
    r_bond_refined_d 0.007
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 7282
    Nucleic Acid Atoms 877
    Heterogen Atoms 0
    Solvent Atoms 0
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) XDS
    Data Reduction (data scaling) XSCALE
    Structure Solution PHASER
    Structure Refinement REFMAC 5.7.0029
     
    Software
    refinement REFMAC version: 5.7.0029
    model building PHASER