X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5
Temperature 20.0
Details 1.4M Ammonium Sulfate, 0.1M Sodium Acetate or Sodium Citrate at pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 20K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 125.05 α = 90
b = 75.88 β = 105.37
c = 76.2 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
2 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 2001-03-01
CCD MARRESEARCH -- 2001-03-24
Diffraction Radiation
Monochromator Protocol
monocrystal Si 111 SINGLE WAVELENGTH
Si 111 CHANNEL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE DW32 0.948 LURE DW32
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 1.050 MPG/DESY, HAMBURG BW6

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
1.93 24.04 97.0 0.08 -- -- 4.6 -- 52653 0.0 -3.0 21.8
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1.93 1.97 94.4 0.326 -- 2.7 2.1 2543

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 1.93 24.04 0.0 0.0 52656 50288 3709 97.2 -- 0.22 0.214 0.228 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 1.93 1.97 2900 189 2352 0.276 0.298 0.022 94.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 35.3
Anisotropic B[1][1] 0.32
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 2.42
Anisotropic B[2][2] 3.68
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -4.0
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.4
c_improper_angle_d 1.01
c_mcangle_it 4.39
c_scbond_it 4.25
c_dihedral_angle_d 19.7
c_scangle_it 6.91
c_mcbond_it 2.6
c_bond_d 0.006
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.23
Luzzati Sigma A (Observed) 0.17
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.25
Luzzati Sigma A (R-Free Set) 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3412
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 217

Software

Software
Software Name Purpose
AMoRE phasing
CNS refinement version: 1.1
DENZO data reduction
SCALEPACK data scaling