X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.1
Details 20 DEGREE C 2UL OF PROTEIN + 1UL OF MOTHER LIQUOR 0.2M LITHIUM NITRATE 20% W/V POLYETHYLENE GLYCOL 3350, PH 7.1

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 87.53 α = 90
b = 176.88 β = 90
c = 75.25 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
CCD ADSC CCD -- 2001-10-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-2 -- ESRF ID14-2

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
2.8 100 87.4 0.103 -- -- 6.8 -- 89500 -- -0.5 95.2
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)
2.8 2.9 71.1 0.325 -- 1.8 -- --

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 2.8 34.78 -- 0.0 -- 12918 535 87.4 -- 0.225 0.225 0.273 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 2.8 2.98 -- 70 1543 0.367 0.428 0.051 67.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 50.2
Anisotropic B[1][1] 2.43
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -6.93
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 4.5
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.012
c_angle_deg 1.6
c_improper_angle_d 1.46
c_mcangle_it 3.9
c_dihedral_angle_d 26.5
c_mcbond_it 2.35
c_scbond_it 4.01
c_scangle_it 5.72
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.37
Luzzati Sigma A (Observed) 0.44
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.48
Luzzati Sigma A (R-Free Set) 0.7
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2992
Nucleic Acid Atoms 0
Heterogen Atoms 86
Solvent Atoms 40

Software

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