X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6
Temperature 293.0
Details PEG 6K, lithium chloride, cacodylate , pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 94.74 α = 90
b = 94.74 β = 90
c = 186.9 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC yale mirrors 1997-07-28
Diffraction Radiation
Monochromator Protocol
nickel filter SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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 31.39 91.3 0.075 -- -- 2.36 22078 22078 0.0 0.0 37.3
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 77.0 0.279 -- 2.1 -- --

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
difference fourier 2.7 31.39 -- 0.0 22075 22075 2192 91.4 -- 0.232 0.232 0.268 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 2.87 -- 333 2861 0.375 0.402 0.022 81.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 46.3
Anisotropic B[1][1] 4.77
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 4.77
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -9.54
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 23.9
c_bond_d 0.008
c_mcangle_it 2.2
c_mcbond_it 1.24
c_scangle_it 2.72
c_improper_angle_d 1.0
c_scbond_it 1.72
c_angle_deg 1.4
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.38
Luzzati Sigma A (Observed) 0.6
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.45
Luzzati Sigma A (R-Free Set) 0.71
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4065
Nucleic Acid Atoms 0
Heterogen Atoms 74
Solvent Atoms 56

Software

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