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X-RAY DIFFRACTION
Materials and Methods page
4GGJ
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 6.5
    Temperature 277.0
    Details 50 mM Bis-Tris, pH 6.5, 18% PEG-3350, 2% tascimate, pH 6.0, 1:100 m/m ratio protein:chymotrypsin, VAPOR DIFFUSION, HANGING DROP, temperature 277K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 38.74 α = 90
    b = 38.74 β = 90
    c = 214.53 γ = 90
     
    Space Group
    Space Group Name:    P 43 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 315
    Collection Date 2012-03-26
     
    Diffraction Radiation
    Monochromator Cryogenically cooled double crystal monochromator with horizontal focusing sagittal bend. Second mono crystal with 4:1 magnification ratio and vertically focusing mirror
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X29A
    Wavelength List 1.0750
    Site NSLS
    Beamline X29A
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 1.75
    Resolution(Low) 40
    Number Reflections(All) 17619
    Number Reflections(Observed) 17027
    Percent Possible(Observed) 96.6
    Redundancy 6.8
     
    High Resolution Shell Details
    Resolution(High) 1.75
    Resolution(Low) 1.85
    Percent Possible(All) 98.3
    Mean I Over Sigma(Observed) 5.8
    Redundancy 6.9
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.75
    Resolution(Low) 38.12
    Number of Reflections(all) 16154
    Number of Reflections(Observed) 16154
    Number of Reflections(R-Free) 862
    Percent Reflections(Observed) 97.1
    R-Factor(Observed) 0.175
    R-Work 0.174
    R-Free 0.197
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 29.023
    Anisotropic B[1][1] -0.53
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -0.53
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 1.06
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.75
    Shell Resolution(Low) 1.8
    Number of Reflections(R-Free) 65
    Number of Reflections(R-Work) 1143
    R-Factor(R-Work) 0.249
    R-Factor(R-Free) 0.252
    Percent Reflections(Observed) 97.03
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_scangle_it 3.257
    r_scbond_it 1.92
    r_mcangle_it 1.242
    r_mcbond_other 0.159
    r_mcbond_it 0.643
    r_gen_planes_other 0.001
    r_gen_planes_refined 0.005
    r_chiral_restr 0.077
    r_dihedral_angle_4_deg 11.452
    r_dihedral_angle_3_deg 12.31
    r_dihedral_angle_2_deg 40.149
    r_dihedral_angle_1_deg 5.851
    r_angle_other_deg 0.832
    r_angle_refined_deg 1.281
    r_bond_other_d 0.001
    r_bond_refined_d 0.011
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1327
    Nucleic Acid Atoms 0
    Heterogen Atoms 1
    Solvent Atoms 105
     
     
  •   Software and Computing Hide
    Computing
    Data Collection CBASS
    Data Reduction (intensity integration) XDS
    Data Reduction (data scaling) SCALA
    Structure Solution Phaser
    Structure Refinement REFMAC 5.5.0072
     
    Software
    refinement REFMAC version: 5.5.0072
    model building Phaser
    data collection CBASS