X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Details 20% AMMONIUM SULPHATE, 1M KCL, 40MM HEPES PH 7

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 184.18 α = 90
b = 184.18 β = 90
c = 215.01 γ = 120
Symmetry
Space Group P 62 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 93
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE (R-AXIS IV) RIGAKU MIRRORS 2002-04-02
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU FR-D -- -- --

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 30 94.1 0.08 -- -- 6.0 -- 50354 -- 0.0 50.4
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)
2.8 2.85 95.0 0.3 -- 6.2 -- --

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
OTHER 2.8 28.4 -- 0.0 -- 50220 1015 94.1 -- 0.221 0.221 0.258 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 2.98 -- 175 8125 0.294 0.343 0.026 95.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model GROUP
Mean Isotropic B 48.2
Anisotropic B[1][1] 5.27
Anisotropic B[1][2] 12.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 5.27
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -10.54
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.68
c_bond_d 0.006
c_angle_deg 0.9
c_dihedral_angle_d 20.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.36
Luzzati Sigma A (Observed) 0.41
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.44
Luzzati Sigma A (R-Free Set) 0.48
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8887
Nucleic Acid Atoms 0
Heterogen Atoms 53
Solvent Atoms 172

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS NULL Structure Refinement
Software
Software Name Purpose
CNS version: NULL refinement