X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.3
Temperature 298.0
Details 0.05M citrate buffer, 19% ammonium sulphate, pH 5.3, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 141.63 α = 90
b = 141.63 β = 90
c = 163.16 γ = 120
Symmetry
Space Group H 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 104
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 2002-06-19
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LNLS BEAMLINE D03B-MX1 1.4538 LNLS D03B-MX1

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
2.3 24.25 94.13 0.087 -- -- 1.842 26429 26429 2.0 2.0 --
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)
2.3 2.4 87.6 0.197 -- -- -- --

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 2.3 8.0 -- 2.0 25740 25740 2588 87.6 0.259 0.239 0.205 0.222 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 16.75
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.332
x_dihedral_angle_d 25.18
x_angle_deg 1.48
x_bond_d 0.009
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.26
Luzzati Resolution Cutoff (Low) 8.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2251
Nucleic Acid Atoms 0
Heterogen Atoms 15
Solvent Atoms 68

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE Structure Solution
X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
AMORE model building
SCALEPACK data reduction
DENZO data collection