X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.3
Temperature 293.0
Details PEG-4000, acetate, glycerol, pH 8.3, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 100.26 α = 90
b = 95.74 β = 92.69
c = 62.16 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 105
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 collimating mirror optics, double-slit monochromator 2000-11-05
Diffraction Radiation
Monochromator Protocol
Si 111 CHANNEL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X8C 0.9794 NSLS X8C

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
1.71 100 98.5 0.04 -- -- 6.48 62547 62547 0.0 -3.0 --
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)
1.71 1.77 0.972 0.723 -- -- -- --

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
MAD 1.75 20.0 0.0 0.0 59011 56641 2839 0.96 -- -- 0.235 0.266 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model anisotropic
Mean Isotropic B 38.5
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.2245
c_dihedral_angle_d 26.232
c_angle_deg 1.8962
c_bond_d 0.01809
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Sigma A (Observed) 0.23
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.3
Luzzati Sigma A (R-Free Set) 0.27
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3815
Nucleic Acid Atoms 0
Heterogen Atoms 30
Solvent Atoms 130

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
MLPHARE Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
MLPHARE model building