X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.5
Temperature 277.0
Details PEG 4000, lithium sulphate, TRIS-HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 106.49 α = 90
b = 106.49 β = 90
c = 49.08 γ = 90
Symmetry
Space Group P 42

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV mirrors 2002-04-01
Diffraction Radiation
Monochromator Protocol
Ni Filter SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 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
2.65 25 99.2 0.087 -- -- 3.2 16344 16187 0.0 0.0 71.9
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)
2.65 2.7 98.5 0.355 -- 2.3 2.9 815

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 2.65 23.91 0.0 0.0 16285 16158 1110 99.2 -- -- 0.248 0.278 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 2.65 2.77 -- 144 1857 0.498 0.521 0.043 98.9
X Ray Diffraction 2.77 2.92 -- 127 1868 0.41 0.455 0.04 99.5
X Ray Diffraction 2.92 3.1 -- 151 1866 0.356 0.337 0.027 99.5
X Ray Diffraction 3.1 3.34 -- 127 1878 0.27 0.333 0.03 99.4
X Ray Diffraction 3.34 3.67 -- 134 1887 0.251 0.281 0.024 99.8
X Ray Diffraction 3.67 4.2 -- 152 1868 0.227 0.259 0.021 99.9
X Ray Diffraction 4.2 5.28 -- 152 1898 0.204 0.222 0.018 99.6
X Ray Diffraction 5.28 23.91 -- 123 1926 0.211 0.248 0.022 97.3
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 62.11
Anisotropic B[1][1] -0.74
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.74
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.47
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 1.3
x_torsion_impr_deg 1.27
x_bond_d 0.008
x_torsion_deg 19.7
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.41
Luzzati Sigma A (Observed) 0.38
Luzzati Resolution Cutoff (Low) 3.0
Luzzati ESD (R-Free Set) 0.44
Luzzati Sigma A (R-Free Set) 0.58
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1884
Nucleic Acid Atoms 974
Heterogen Atoms 0
Solvent Atoms 37

Software

Software
Software Name Purpose
CNS refinement version: 1.1
DENZO data reduction
SCALEPACK data scaling
CNS phasing