1ZCA

Crystal structure of G alpha 12 in complex with GDP, Mg2+ and AlF4-

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	297	PEG 8000 (14%), Sodium Citrate (100 mM), NaCl (50 mM), pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 297K

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.501	α = 90
b = 85.23	β = 106.09
c = 82.885	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 210	Si(111) double-crystal monochromator	2004-12-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 17-ID	1.000	APS	17-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.9	29.1	88.7	0.102	6.9	2.2	15297	15297

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.9	3			0.296	1.67	1.7	589

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1ZCB	2.9	29.1	14452	776	88.83	0.23895	0.23895	0.23595	0.29608	RANDOM	38.436

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]
0.02		0.08	-0.1		0.12

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.43
r_dihedral_angle_3_deg	16.166
r_dihedral_angle_4_deg	14.258
r_dihedral_angle_1_deg	5.547
r_scangle_it	1.135
r_angle_refined_deg	1.019
r_mcangle_it	0.818
r_scbond_it	0.746
r_angle_other_deg	0.699
r_mcbond_it	0.687
r_nbd_refined	0.216
r_nbtor_refined	0.181
r_nbd_other	0.16
r_symmetry_vdw_other	0.154
r_metal_ion_refined	0.145
r_xyhbond_nbd_refined	0.136
r_symmetry_hbond_refined	0.134
r_symmetry_vdw_refined	0.094
r_nbtor_other	0.079
r_chiral_restr	0.058
r_mcbond_other	0.052
r_bond_refined_d	0.007
r_gen_planes_refined	0.002
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5239
Nucleic Acid Atoms
Solvent Atoms	6
Heterogen Atoms	68

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
PHASER	phasing