X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8
Temperature 295.0
Details ammonium sulfate, lithium sulfate, Tris buffer, pH 8, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 73.64 α = 90
b = 73.64 β = 90
c = 162.48 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
CCD ADSC QUANTUM 4 -- 2000-01-23
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X9B -- NSLS X9B

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
1.9 20 99.7 0.057 -- -- 1.8 67128 36203 2.0 2.0 25.3
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)
1.9 1.97 99.5 0.545 -- -- -- --

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
-- 1.9 500.0 -- -- 67290 64443 2788 95.8 0.246 0.214 0.214 0.246 Random
Temperature Factor Modeling
Temperature Factor Value
Anisotropic B[1][1] -1.59
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.59
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 3.181
RMS Deviations
Key Refinement Restraint Deviation
x_mcangle_it 2.332
x_scangle_it 3.262
x_bond_d 0.016334
x_mcbond_it 1.567
x_angle_deg 1.72526
x_scbond_it 2.362
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2724
Nucleic Acid Atoms 0
Heterogen Atoms 9
Solvent Atoms 346

Software

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