X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.8
Temperature 298.0
Details PEG 4000, sodium cacodylate, ammonium fluoride, glycerol, pH 6.8, VAPOR DIFFUSION, HANGING DROP at 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 68.81 α = 90
b = 99.91 β = 104.44
c = 87.29 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
CCD ADSC QUANTUM 4 mirrors 2002-01-30
Diffraction Radiation
Monochromator Protocol
cooled liquid gallium SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX14.2 0.978 SRS PX14.2

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
2.8 37.58 96.7 0.104 0.087 -- 3.3 27398 27376 -- -3.7 51.2
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)
2.8 2.95 81.5 0.551 0.431 1.7 2.5 3351

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 2.8 34.03 -- 0.0 28306 27351 1374 96.6 -- -- 0.202 0.266 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 2.8 2.93 2813 150 -- 0.348 0.346 0.028 79.7
X Ray Diffraction 2.93 3.08 3292 134 -- 0.289 0.287 0.025 93.8
X Ray Diffraction 3.08 3.27 3545 164 -- 0.264 0.264 0.021 99.9
X Ray Diffraction 3.27 3.53 3502 181 -- 0.226 0.227 0.017 100.0
X Ray Diffraction 3.52 3.88 3544 170 -- 0.213 0.214 0.016 99.9
X Ray Diffraction 3.88 4.44 3519 217 -- 0.172 0.174 0.012 99.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Restrained
Mean Isotropic B 55.26
Anisotropic B[1][1] -0.54
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -5.53
Anisotropic B[2][2] 9.09
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -8.56
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.3
c_bond_d 0.007
c_dihedral_angle_d 23.0
c_improper_angle_d 0.81
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.33
Luzzati Sigma A (Observed) 0.48
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.46
Luzzati Sigma A (R-Free Set) 0.64
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6603
Nucleic Acid Atoms 0
Heterogen Atoms 126
Solvent Atoms 34

Software

Software
Software Name Purpose
MOSFLM data reduction
TRUNCATE data reduction
CNS refinement
CCP4 data scaling version: (TRUNCATE)
CNS phasing