X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 293.0
Details 30% PEG5000 MME, 0.1 M sodium acetate, 5 mM beta-mercaptoethanol, 0.1 M MES. (Crystals were soaked in mother liquor containing 0.5 M sodium chloride for 1 hour.) , pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 54.6 α = 90
b = 45.11 β = 111.36
c = 71.6 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV -- 1999-08-05
Diffraction Radiation
Monochromator Protocol
Yale Mirrors SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU 1.5418 -- --

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
1.8 24 87.2 0.07 -- -- 3.2 26475 26475 0.0 0.0 28.0
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)
1.8 1.846 87.5 0.37 -- 3.6 3.3 1829

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 1.8 24.0 0.0 0.0 26475 26475 1591 87.21 0.14951 0.14951 0.1466 0.19539 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 1.8 1.846 1829 119 -- 0.249 0.337 -- 87.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model isotropic
Mean Isotropic B 15.345
Anisotropic B[1][1] -0.14
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.28
Anisotropic B[2][2] 0.41
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.07
RMS Deviations
Key Refinement Restraint Deviation
p_scangle_it 5.574
p_scbond_it 3.783
p_mcbond_it 1.738
p_mcangle_it 2.557
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2729
Nucleic Acid Atoms 0
Heterogen Atoms 24
Solvent Atoms 274

Software

Software
Software Name Purpose
REFMAC refinement version: 5.0
XENGEN data reduction
CCP4 data scaling version: (SCALA)