X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7
Temperature 298.0
Details 75mM Hepes pH 7.0 9% PEG 4000 150 mM Ammonium Sulfate 20% 1,4 butanediol 100 mM Cadmium Chloride, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 53.17 α = 90
b = 64.13 β = 99.53
c = 75.95 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 200
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 1998-02-16
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 -- ALS 5.0.2

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 20 90.3 0.045 -- -- 2.0 74105 30863 2.0 0.0 42.9
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)
2.0 2.07 90.5 0.14 -- -- 2.0 3080

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
-- 2.0 20.0 0.0 2.0 30863 28789 2852 84.2 0.227 0.216 0.216 0.263 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 2.97 -- 194 1748 0.25 0.293 0.021 94.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model GROUP
Mean Isotropic B 37.6
Anisotropic B[1][1] -6.79
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.42
Anisotropic B[2][2] 1.1
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 5.69
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.27
c_dihedral_angle_d 28.0
c_angle_deg 2.1
c_bond_d 0.02
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.31
Luzzati Sigma A (Observed) 0.27
Luzzati Resolution Cutoff (Low) 7.0
Luzzati ESD (R-Free Set) 0.39
Luzzati Sigma A (R-Free Set) 0.33
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3316
Nucleic Acid Atoms 0
Heterogen Atoms 3
Solvent Atoms 182

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE Structure Solution
CNS 0.4 Structure Refinement
Software
Software Name Purpose
CNS version: 0.4 refinement
AMORE model building
SCALEPACK data reduction
DENZO data collection