X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8
Temperature 277.0
Details RESERVOIR: 28% PEG400, 0.1 M KCL, 10 MM MGCL2, 0.1 M TRIS, PH 8. PROTEIN SOLUTION: 13.7 MG/ML IN 10 MM HEPES, PH 7.5. DROPS: 1 MICROLITER RESERVOIR + 1 MICROLITER PROTEIN SOLUTION. VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 31.71 α = 90
b = 50.62 β = 90
c = 107.13 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2003-02-16
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 22-ID 0.9840 APS 22-ID

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
1.8 50 96.9 -- 0.064 -- 8.8 -- 16153 -- -1.0 24.3
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)
1.8 1.86 85.3 -- 0.243 3.5 3.2 1421

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 1.8 50.0 -- 0.0 16153 16153 786 96.9 -- -- 0.209 0.234 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 1.8 1.84 857 47 -- 0.279 0.31 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model isotropic
Mean Isotropic B 25.5
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.809
c_scbond_it 2.47
c_angle_deg 1.0
c_bond_d 0.005
c_mcangle_it 1.75
c_mcbond_it 1.203
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.13
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1343
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 131

Software

Software
Software Name Purpose
MAR345 data collection
HKL-2000 data reduction
AMoRE phasing
ARP/wARP model building
CNS refinement
HKL-2000 data scaling