X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.6
Details CRYSTALS WERE OBTAINED BY VAPOR DIFFUSION IN 2UL SITTING DROPS. THE RESERVOIR CONTAINED 25% PEG 4000, 0.2 M NH4-ACETATE AND 0.2 M NA-ACETATE PH 4.6. CRYSTALLIZATION WERE CARRIED OUT AT 20C.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.35 α = 90
b = 61.35 β = 90
c = 166.1 γ = 120
Symmetry
Space Group P 61

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2002-07-15
Diffraction Radiation
Monochromator Protocol
SILICON CRYSTAL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ELETTRA BEAMLINE 5.2R -- ELETTRA 5.2R

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
2.15 47 100.0 0.098 -- -- 7.2 -- 19211 -- -- 18.5
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)
2.15 2.21 96.5 0.27 -- 4.5 -- --

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 2.15 20.0 -- 0.0 -- 19131 1615 99.8 -- 0.208 0.208 0.262 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 2.15 2.21 -- 121 1436 0.204 0.277 0.025 96.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 20.7
Anisotropic B[1][1] -4.57
Anisotropic B[1][2] 1.7
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -4.57
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 9.14
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 2.79
c_dihedral_angle_d 25.4
c_improper_angle_d 1.02
c_bond_d 0.01
c_scbond_it 3.11
c_scangle_it 4.55
c_angle_deg 1.6
c_mcbond_it 1.85
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.24
Luzzati Sigma A (Observed) 0.04
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.31
Luzzati Sigma A (R-Free Set) 0.17
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3104
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 136

Software

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