ISDA

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 one day 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: 150.223 Å b: 150.223 Å c: 200.471 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	48.58	37731	1986	99.46	0.18130	0.21088	55.725

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
2.5	48.6	99.5	?	0.111	17.5	8.8	?	39718	?	?	50.5

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	97.1	?	0.943	2.4	8.9	?

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	0.918409	BESSY	14.1

Software