ISDA

X-RAY DIFFRACTION

Crystallization Details

Method	pH	Temprature	Details
X-RAY DIFFRACTION	7.5	291.15	Starting concentration of HRAS A59T GppNHp was 18.1mg/mL in buffer containing 20mM HEPES, 50mM NaCl, 20mM MgCl2 and 1mM DTT at pH 7.5. Used a 24-well plate sealed with Vaseline and total well volumes of 0.402mL. Hanging drops were 0.001mL mother liquor to 0.001mL protein. Mother liquor contained 2.6mM NaCl, 1mM MgCl2, 15.7mM HEPES (pH7.5), 2.5mM DTT, 9.95mM Ca(OAc)2, and 19.9% PEG 3350.

Unit Cell:

a: 55.675 Å b: 49.832 Å c: 57.320 Å α: 90.000° β: 117.810° γ: 90.000°

Symmetry:

Space Group: P 1 21 1

Crystal Properties:

Matthew's Coefficient: 1.86 Solvent Content: 33.78

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	MOLECULAR REPLACEMENT	THROUGHOUT	1.9890	29.1700	15420	1575	80.0200	0.2020	0.2542	35.3086

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
1.989	50.000	80.200	0.083	?	6.600	3.300	?	15450	?	?	33.180

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	1.9890	2.020	6.700	?	?	?	1.400	?

Diffraction

Diffraction experiment

Crystal ID	Scattering Type	Data Collection Temprature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1		173.15 K			?

Radiation Source

Source	Type	Wavelength List	Synchrotron Site	Beamline
ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.54178	?	?

Software