X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.6
Temperature 295.0
Details 27-33% MPD, 0.2 M ammonium acetate, 50 mM sodium citrate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 118.67 α = 90
b = 118.78 β = 90
c = 118.52 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 210 -- 2005-06-30
Diffraction Radiation
Monochromator Protocol
Si(111) channel cut monochromator SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X6A 1.10 NSLS X6A

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
2.6 37.56 100.0 0.087 -- -- 7.3 52992 52992 0.0 0.0 47.4
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)
2.6 2.69 82.1 0.716 -- 2.25 6.3 4351

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 2.7 8.0 -- 0.0 44731 44726 3466 100.0 0.293 0.293 0.292 0.314 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 2.7 2.82 5507 434 -- 0.336 0.369 0.018 99.8
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 41.55
Anisotropic B[1][1] -0.03
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.81
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.84
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 0.95
x_angle_deg 1.6
x_bond_d 0.009
x_dihedral_angle_d 27.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.4
Luzzati Sigma A (Observed) 0.27
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.44
Luzzati Sigma A (R-Free Set) 0.33
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8544
Nucleic Acid Atoms 0
Heterogen Atoms 36
Solvent Atoms 0

Software

Software
Software Name Purpose
HKL-2000 data collection
SCALEPACK data scaling
PHASER phasing version: (CCP4)
CNS refinement version: 1.1
HKL-2000 data reduction
CCP4 phasing version: (PHASER)