2CJW

Crystal structure of the small GTPase Gem (GemDNDCaM) in complex to Mg.GDP

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1KAO	PDB ENTRY 1KAO

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				0.1M NACACODYLATE PH6.5, 0.9M NAACETATE, 5MM MGCL2 AND 2MM DTT

Crystal Properties
Matthews coefficient	Solvent content
3.65	66.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 116.617	α = 90
b = 116.617	β = 90
c = 81.409	γ = 120

Symmetry
Space Group	P 61

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	MARRESEARCH		2004-09-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1		ESRF	ID14-1

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	2.1	60	100	0.086	19	7.7		36826		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	2.1	2.21	99.9		0.342	5.3	7.7

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1KAO	2.1	60	33159	3669	100	0.212	0.209	0.241	RANDOM	35.22

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]
1.2	0.6		1.2		-1.79

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.153
r_dihedral_angle_3_deg	14.843
r_dihedral_angle_4_deg	13.912
r_dihedral_angle_1_deg	5.589
r_scangle_it	2.894
r_scbond_it	1.886
r_mcangle_it	1.423
r_angle_refined_deg	1.271
r_mcbond_it	1.199
r_nbtor_refined	0.299
r_symmetry_hbond_refined	0.226
r_symmetry_vdw_refined	0.21
r_nbd_refined	0.204
r_xyhbond_nbd_refined	0.137
r_chiral_restr	0.089
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2834
Nucleic Acid Atoms
Solvent Atoms	127
Heterogen Atoms	58

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing