X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 8
Temperature 18.0
Details ammonium sulfate, Tris-HCl, pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 18K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 169.4 α = 90
b = 169.4 β = 90
c = 154.2 γ = 90
Symmetry
Space Group P 4 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 291
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1994-09-14
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 -- SRS PX9.6

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
2.5 20 92.0 0.077 -- -- 3.44 71395 65683 1.0 1.0 22.81
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)
2.5 2.59 82.0 0.246 -- -- 2.12 6242

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
-- 2.5 20.0 0.0 0.0 71395 65683 3617 92.0 0.2116 0.2116 0.2049 0.2376 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.339
c_bond_d 0.007
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 11382
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 284

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHELXS Structure Solution
X-PLOR, CNS Structure Refinement
Software
Software Name Purpose
X-PLOR version: & CNS refinement
SHELXS model building
SCALEPACK data reduction
DENZO data collection