X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Details 1.4M AMMONIUM SULPHATE 0.1M HEPES PH 7.0, 25% GLYCEROL

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 55.81 α = 90
b = 103.74 β = 90
c = 186.28 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 113
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD -- -- 2001-11-28
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID29 -- ESRF ID29

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
1.7 20 97.1 0.047 -- -- 3.3 -- 114743 -- 2.0 21.3

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 1.7 19.9 -- 0.0 -- 114670 1159 96.6 -- 0.17 0.17 0.195 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 1.7 1.77 -- 115 9736 0.26 0.259 0.024 83.8
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 27.76
Anisotropic B[1][1] 2.9
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 4.3
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -7.2
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 1.5
c_mcangle_it 2.0
c_scbond_it 2.1
c_scangle_it 2.9
c_bond_d 0.013
c_angle_deg 1.6
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.17
Luzzati Sigma A (Observed) 0.17
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.21
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7803
Nucleic Acid Atoms 0
Heterogen Atoms 252
Solvent Atoms 1416

Software

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