X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.7
Temperature 289.0
Details THE PROTEIN WAS CRYSTALLIZED FROM 0.01 M BES, PH 6.7, 0.003 M DTT, 0.001 M SPERMINE, 0.0001 M SODIUM EDTA, 0.02 % SODIUM AZIDE AT 16 DEGREES C. THE CRYSTALS WERE SOAKED IN 0.1 M SPIROHYDANTOIN AND CRYOPROTECTED WITH 25% (V/V) MPD (2-METHYL-2,4- PENTANEDIOL)., temperature 289K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 127.47 α = 90
b = 127.47 β = 90
c = 115.8 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
IMAGE PLATE MAR scanner 300 mm plate MIRROR 1996-05-18
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 -- SRS PX9.6

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
1.78 19.9 86.4 0.034 -- -- 2.6 -- 78974 -- -- --
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)
1.78 1.87 65.7 0.174 -- 4.0 1.9 --

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
DIFFERENCE FOURIER 1.78 19.9 -- -- -- 75007 3967 86.4 -- -- 0.182 0.229 RANDOM
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.09
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6683
Nucleic Acid Atoms 0
Heterogen Atoms 32
Solvent Atoms 797

Software

Software
Software Name Purpose
CCP4 model building
REFMAC refinement
DENZO data reduction
SCALEPACK data scaling
CCP4 phasing