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An Information Portal to 105339 Biological Macromolecular Structures

X-RAY DIFFRACTION
Materials and Methods page
1LRZ
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 8
    Temperature 293.0
    Details PEG 8000, calcium acetate, imidazole, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 53.93 α = 90
    b = 90.36 β = 90
    c = 109.35 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type MARRESEARCH
    Collection Date 2000-01-29
     
    Diffraction Radiation
    Monochromator Si(111) double-crystal system
    Diffraction Protocol MAD
     
    Diffraction Source
    Source SYNCHROTRON
    Type APS BEAMLINE 17-ID
    Wavelength List 0.96863, 0.97949, 0.97923
    Site APS
    Beamline 17-ID
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.1
    Resolution(Low) 50
    Number Reflections(All) 31869
    Number Reflections(Observed) 31500
    Percent Possible(Observed) 98.8
    B(Isotropic) From Wilson Plot 15.1
    Redundancy 7.0
     
    High Resolution Shell Details
    Resolution(High) 2.1
    Resolution(Low) 2.17
    Percent Possible(All) 97.9
    Mean I Over Sigma(Observed) 3.0
    R-Sym I(Observed) 0.246
    Redundancy 4.6
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MAD
    reflnsShellList 2.1
    Resolution(Low) 20.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 31869
    Number of Reflections(Observed) 31500
    Number of Reflections(R-Free) 3160
    Percent Reflections(Observed) 98.8
    R-Factor(All) 0.183
    R-Factor(Observed) 0.183
    R-Work 0.18
    R-Free 0.212
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 26.7
    Anisotropic B[1][1] -1.944
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 2.938
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -0.994
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.1
    Shell Resolution(Low) 2.23
    Number of Reflections(R-Free) 523
    Number of Reflections(R-Work) 4519
    R-Factor(R-Work) 0.216
    R-Factor(R-Free) 0.246
    R-Free Error 0.011
    Percent Reflections(Observed) 96.7
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 4.45
    c_scbond_it 3.21
    c_mcangle_it 2.65
    c_mcbond_it 1.89
    c_improper_angle_d 0.81
    c_dihedral_angle_d 22.1
    c_angle_deg 1.4
    c_bond_d 0.008
     
    Coordinate Error
    Luzzati ESD(Observed) 0.21
    Luzzati Sigma A(Observed) 0.12
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.25
    Luzzati Sigma A(R-Free Set) 0.16
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 3313
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 318
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) HKL-2000
    Data Reduction (data scaling) SCALEPACK
    Structure Solution MLPHARE
    Structure Refinement CNX 2000.1
     
    Software
    refinement CNX version: 2000.1
    model building MLPHARE