X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.4
Temperature 293.0
Details PEG 4000, Glycrol, Tris-HCl , pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 293 K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 117.78 α = 90
b = 117.78 β = 90
c = 117.78 γ = 90
Symmetry
Space Group I 2 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH Bent mirror 2002-12-18
Diffraction Radiation
Monochromator Protocol
Triangular monochromator SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 0.81 EMBL/DESY, HAMBURG X11

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
2.7 20 88.2 0.036 0.036 -- 6.0 7610 6714 1.0 1.0 --
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)
2.7 2.8 91.0 0.246 0.206 91.0 5.0 679

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 20.0 2.0 4.0 7610 5876 639 77.2 0.3351 0.2506 0.2349 0.3217 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 2.82 454 80 -- 0.3077 0.3721 -- --
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.09103
c_dihedral_angle_d 23.0796
c_angle_d 1.40845
c_bond_d 0.008952
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.041
Luzzati Sigma A (Observed) 0.56
Luzzati ESD (R-Free Set) 0.045
Luzzati Sigma A (R-Free Set) 0.4
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2082
Nucleic Acid Atoms 0
Heterogen Atoms 11
Solvent Atoms 34

Software

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