Experiment: 7JIF

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	291.15	Starting concentration of HRAS A59T GppNHp was 12.1mg/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 0.002mL mother liquor to 0.002mL protein. Mother liquor contained 2.6mM NaCl, 1mM MgCl2, 15.7mM HEPES (pH7.5), 2.5mM DTT, 37.3mM Ca(OAc)2, and 20.5% PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
1.89	34.99

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.567	α = 90
b = 39.567	β = 90
c = 158.302	γ = 120

Symmetry
Space Group	P 32 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	173.15	IMAGE PLATE	RIGAKU RAXIS IV++		2019-05-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.54178

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	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	1.75	50	68.1	0.032	0.036	0.016	29	4.3		10520			24.59

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.75	1.78	1.2		0.378	0.535	0.378	1		1.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	1CTQ	1.757	33.49	1.39	10481	1047	69.08	0.1796	0.1716	0.2498	random selection	23.1735

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	11.664
f_angle_d	0.915
f_chiral_restr	0.05
f_bond_d	0.006
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1315
Nucleic Acid Atoms
Solvent Atoms	155
Heterogen Atoms	39

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-3000	data scaling
PDB_EXTRACT	data extraction
HKL-3000	data reduction
PHENIX	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.