8VGA

Crystal Structure of Guanine Nucleotide-Binding Protein (G Protein) Alpha-1 Subunit from Selaginella moellendorffii in complex with GTP gamma S

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
in silico model	Other		Phyre2

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		277	20% (w/v) polyethylene glycol (PEG)-3350, 200 mM potassium citrate tribasic

Crystal Properties
Matthews coefficient	Solvent content
3.92	68.61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 109.055	α = 90
b = 61.468	β = 115.23
c = 111.871	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 315		2013-11-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.979	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.57	50	99.8	0.084	0.133	0.069	16.6	3.7		42607			48.2797466139

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.57	2.61			0.782	0.916	0.474	0.616	2.01

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.57602485808	42.6224322563	1.34361512083	42496	2002	99.141470698	0.176964721126	0.175021871076	0.216388308106	58.4192866655

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	4.4004843456
f_angle_d	0.913262917175
f_chiral_restr	0.053756921748
f_bond_d	0.00773026937147
f_plane_restr	0.00467820703055

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5491
Nucleic Acid Atoms
Solvent Atoms	148
Heterogen Atoms	66

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-3000	data collection
PHASER	phasing
Coot	model building
HKL-3000	data reduction

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 R01GM157729.