X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 8.5
Temperature 292.0
Details PEG 4000, heptanetriol, TRIS-HCl, LDAO detergent, sodium chloride, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 292K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 141.52 α = 90
b = 141.52 β = 90
c = 278.51 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 90
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1999-05-05
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-1 -- SSRL BL9-1

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 27.48 96.7 0.081 -- -- 3.7 95904 94697 0.0 0.0 56.67
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 2.56 78.5 0.307 -- -- 3.6 5616

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 27.52 0.0 0.0 98239 94672 4424 96.4 0.245 0.245 0.238 0.265 The test set was the same subset of reflections used for refinement of PDB entry 1aij
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.014
c_torsion_impr_deg 1.07
c_angle_d 1.68
c_torsion_deg 21.22
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 12982
Nucleic Acid Atoms 0
Heterogen Atoms 927
Solvent Atoms 440

Software

Software
Software Name Purpose
CNS refinement
MOSFLM data reduction
CCP4 data scaling version: (SCALA)
CNS phasing