X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.5
Details 1 M AMMONIUM SULPHATE, 0.1M TRIS PH 8.5, 12% GLYCEROL

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 74.23 α = 90
b = 92.18 β = 90
c = 144.01 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC BENT MIRROR 2001-11-28
Diffraction Radiation
Monochromator Protocol
SI(311) MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID29 1.021409, 1.021248 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
2 77 93.7 0.058 -- -- 5.7 -- 168658 -- -- 36.9
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)
2.0 2.11 74.1 0.368 -- 1.7 3.8 --

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 2.0 77.0 -- -- -- 29890 1494 93.7 -- 0.223 0.21 0.254 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 27.2
Anisotropic B[1][1] -0.23
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.28
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.51
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3063
Nucleic Acid Atoms 0
Heterogen Atoms 35
Solvent Atoms 194

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
AUTOSHARP, SHARP, CCP4 Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
CCP4 model building
SHARP model building
AUTOSHARP model building