X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 8.5
Temperature 289.0
Details 1.5-2.0 M Lithium Sulfate, 1-4% Peg 400 or 550, 0.1 M Tris buffer pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 59.79 α = 90
b = 151.26 β = 90
c = 167.85 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARMOSAIC 300 mm CCD -- 2007-04-12
Diffraction Radiation
Monochromator Protocol
Si (220) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 22-ID 0.97625 APS 22-ID

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
2.99 28.75 99.8 0.123 -- -- 11.9 16000 15965 -3.0 -3.0 32.5
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)
2.99 3.1 99.7 0.535 -- -- 11.0 1564

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 2.99 28.75 0.0 0.0 15822 15490 753 97.9 0.208 0.208 0.205 0.261 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 2.99 3.1 1466 65 -- 0.378 0.395 0.049 94.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model ISOTROPIC
Mean Isotropic B 47.4
Anisotropic B[1][1] 13.26
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -2.15
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -11.11
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.96
c_dihedral_angle_d 22.1
c_bond_d 0.009
c_angle_deg 1.5
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.35
Luzzati Sigma A (Observed) 0.36
Luzzati Resolution Cutoff (Low) 28.75
Luzzati ESD (R-Free Set) 0.45
Luzzati Sigma A (R-Free Set) 0.44
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3465
Nucleic Acid Atoms 0
Heterogen Atoms 40
Solvent Atoms 28

Software

Software
Software Name Purpose
MAR345dtb data collection
PHASER phasing
CNS refinement version: 1.1
HKL-2000 data reduction
HKL-2000 data scaling