X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 10% PEG8000, 8% ETHYLENE GLYCOL, 0.55M SODIUM DIHYDROGEN PHOSPHATE 0.10M SODIUM HEPES, PH 7.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 86.56 α = 90
b = 86.56 β = 90
c = 117.75 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2000-04-14
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX14.1 -- SRS PX14.1

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
2.3 21 99.5 -- 0.077 -- 13.0 -- 20349 -- 3.0 53.1
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)
2.3 2.35 99.0 -- 0.375 -- -- --

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 2.3 21.0 -- 0.0 -- 19580 951 95.9 -- 0.262 0.262 0.279 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 2.3 2.44 -- 125 2783 0.315 0.359 0.032 87.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 57.4
Anisotropic B[1][1] -7.98
Anisotropic B[2][2] -7.98
Anisotropic B[3][3] 15.97
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 1.7
c_scbond_it 2.27
c_angle_deg 1.2
c_scangle_it 3.39
c_mcangle_it 2.94
c_improper_angle_d 0.77
c_dihedral_angle_d 24.6
c_bond_d 0.007
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.35
Luzzati Sigma A (Observed) 0.26
Luzzati Resolution Cutoff (Low) 21.0
Luzzati ESD (R-Free Set) 0.38
Luzzati Sigma A (R-Free Set) 0.29
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2170
Nucleic Acid Atoms 0
Heterogen Atoms 116
Solvent Atoms 67

Software

Software
Software Name Purpose
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing