X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details pH 8.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 49.72 α = 90
b = 67.98 β = 90
c = 108.46 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
IMAGE PLATE MAR scanner 345 mm plate DOUBLE-FOCUSSING TOROIDAL MIRROR 1997-11
Diffraction Radiation
Monochromator Protocol
SI(111) DOUBLE MONOCHROMATOR SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 -- MPG/DESY, HAMBURG BW6

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 25 99.7 -- 0.038 -- 5.8 -- 16897 -- -- --
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 2.4 99.2 -- 0.067 20.0 5.2 --

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
MAD 2.3 25.0 -- 3.0 -- 16652 797 98.2 -- -- 0.218 0.289 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 2.35 -- 41 1028 0.284 0.344 -- 96.1
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 20.5
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 0.9
x_bond_d 0.012
x_angle_deg 1.7
x_dihedral_angle_d 25.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2565
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 230

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (AGROVATA, ROTAVATA) Data Reduction (data scaling)
MLPHARE Structure Solution
X-PLOR 3.8 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.8 refinement
MLPHARE model building
ROTAVATA/AGROVATA data reduction
MOSFLM data collection