X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 4
Temperature 291.0
Details 1.6M phosphate, 0.5mM MgCl2, pH 4.0, VAPOR DIFFUSION, SITTING DROP, temperature 291.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 38.97 α = 90
b = 50.35 β = 90
c = 107.8 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1997-10-02
Diffraction Radiation
Monochromator Protocol
SAGITALLY FOCUSED Si(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 1.2 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
1.98 27 96.5 0.041 -- -- 7.38 7641 7037 1.0 1.0 19.1
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)
1.98 2.01 98.7 0.117 -- 12.23 7.0 374

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
SIRAS 1.98 27.0 1.0 1.0 7641 7037 350 92.0 0.209 0.197 0.193 0.241 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.01
c_angle_deg 1.3
c_dihedral_angle_d 21.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 738
Nucleic Acid Atoms 0
Heterogen Atoms 6
Solvent Atoms 97

Software

Software
Software Name Purpose
MAR data collection
SCALEPACK data scaling
CCP4 model building
CNS refinement
MAR data reduction
CCP4 phasing