X-RAY DIFFRACTION

Crystallization Details
Method pH Temprature Details
X-RAY DIFFRACTION 6.5 277 Drops made from KRAS SOS1 complex (14.4 mg/ml in 5 mM Tris pH 7.5, 100mM NaCl) and reservoir solution (2.9 to 3.4 M sodium formate, 100 mM MES pH 6.5). Fragment soaked at 25 mM for 2.5 days using a 500 mM fragment stock solution in DMSO. Cryo buffer 0.1 M MES pH 6.5, 3.5 M sodium formate, 20 glycerol, 25 mM fragment.
Unit Cell:
a: 149.990 Å b: 149.990 Å c: 201.070 Å α: 90.00° β: 90.00° γ: 90.00°
Symmetry:
Space Group: I 4 2 2
Crystal Properties:
Matthew's Coefficient: 3.70 Solvent Content: 66.75
Refinement Statistics
Diffraction ID Structure Solution Method Cross Validation Method Resolution Limit (High) Resolution Limit (Low) Number of Reflections (Observed) Number of Reflections (R-free) Percent Reflections (Observed) R-Work R-Free Mean Isotropic
X-RAY DIFFRACTION FOURIER SYNTHESIS THROUGHOUT 2.50 47.41 37472 1973 98.61 0.17916 0.21850 53.290
Data Collection
Overall
Resolution Limit (High) Resolution Limit (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
2.50 48.5 98.6 ? 0.118 15.5 9.0 ? 39446 ? ? ?
Highest Resolution Shell
# Resolution Limits (Low) Resolution Limits (High) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1 2.50 2.65 98.3 ? 0.862 2.6 9.1 ?
Diffraction
Diffraction experiment
Crystal ID Scattering Type Data Collection Temprature Detector Detector Type Details Collection Date Monochromator Protocol
1 100 K ?
Radiation Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON BESSY BEAMLINE 14.1 0.91841 BESSY 14.1
Software
Software Name Purpose Version
REFMAC refinement 5.8.0158
XDS data reduction VERSION Jun 17, 2015
XDS data scaling VERSION Jun 17, 2015
REFMAC phasing .