X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 8
Temperature 298.0
Details HEPES, PEG 4000, magnesium chloride, pH 8.0, VAPOR DIFFUSION, SITTING DROP at 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 47.53 α = 90
b = 71.9 β = 90
c = 82.16 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2001-05-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-2 0.934 ESRF ID14-2

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
2.21 54.23 99.4 0.072 -- -- 11.8 14547 14547 -- 2.9 47.0
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)
2.21 2.27 92.0 0.249 -- 2.9 5.4 --

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 2.2 81.65 -- 0.0 14547 13577 730 96.12 0.1939 0.192 0.189 0.256 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 2.21 2.26 779 31 -- 0.223 0.219 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 33.39
Anisotropic B[1][1] 3.69
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -3.35
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.33
RMS Deviations
Key Refinement Restraint Deviation
p_scangle_it 2.924
p_scbond_it 1.855
p_mcangle_it 1.341
p_mcbond_it 0.76
r_angle_refined_deg 1.521
r_bond_refined_d 0.015
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.353
Luzzati ESD (R-Free Set) 0.246
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2287
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 171

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
SOLVE Structure Solution
REFMAC 5 Structure Refinement
Software
Software Name Purpose
REFMAC version: 5.0 refinement
SOLVE model building