X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 5
Temperature 277.0
Details pH 5, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 138.4 α = 90
b = 109 β = 90
c = 72.8 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 ADSC QUANTUM 4 -- 1999-10-08
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-4 0.978 ESRF ID14-4

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 30 99.8 0.115 -- -- 10.27 -- 27049 -- -1.5 80.4
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 99.2 0.523 -- 1.9 5.07 2666

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 29.57 -- 0.0 -- 27001 1313 98.6 -- 0.229 0.235 0.295 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 2.9 -- 85 1881 0.441 0.492 0.053 72.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 84.5
Anisotropic B[1][1] -11.3
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -23.8
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 35.1
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 23.1
c_angle_deg 1.5
c_mcbond_it 4.15
c_scangle_it 9.45
c_improper_angle_d 1.0
c_mcangle_it 6.9
c_scbond_it 5.89
c_bond_d 0.01
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.4
Luzzati Sigma A (Observed) 0.5
Luzzati Resolution Cutoff (Low) 30.0
Luzzati ESD (R-Free Set) 0.55
Luzzati Sigma A (R-Free Set) 0.62
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7749
Nucleic Acid Atoms 0
Heterogen Atoms 20
Solvent Atoms 21

Software

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