Experiment: 2X1V

Crystal Structure of the activating H-Ras I163F mutant in Costello Syndrome, bound to MG-GDP

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4Q21	PDB ENTRY 4Q21

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.6		18% POLYETHYLENE GLYCOL (PEG) 6000, 100 MM HEPES PH 7.4, 150 MM MGCL2.

Crystal Properties
Matthews coefficient	Solvent content
2.82	56.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 73.14	α = 90
b = 73.14	β = 90
c = 62.88	γ = 120

Symmetry
Space Group	P 63

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MAR scanner 345 mm plate		2008-05-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.7	20	100	0.03	46.14	15		1054		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.7	1.8	100		0.09	5.73	6.85

Refinement

Statistics
Diffraction ID	Structure Solution 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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 4Q21	1.7	28.285	1.99	21075	1054	99.77	0.1907	0.1899	0.1897	0.2272	0.2312

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]
-3.1443			-3.1443		6.2886

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	19.677
f_angle_d	1.089
f_chiral_restr	0.066
f_bond_d	0.006
f_plane_restr	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1085
Nucleic Acid Atoms
Solvent Atoms	116
Heterogen Atoms	28

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing