1Z2A

GDP-Bound Rab23 GTPase crystallized in P2(1)2(1)2(1) space group

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		Polyalanine Rab3a

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	277	15% PEG 6000, 50mM Na acetate, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.14	41.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40.281	α = 90
b = 61.44	β = 89.99
c = 63.854	γ = 90

Symmetry
Space Group	P 21 21 21

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 300 mm plate		2004-03-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R

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	1.9	50	95.9	0.044	24.5	4	12482	12522			34.8

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)
	1.9	1.96	79.4		0.268	5.3	4	834

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	Polyalanine Rab3a	1.9	8	12522	11684	600	96.21	0.243	0.2322	0.22982	0.27761	RANDOM	25.353

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]
-0.76			1.44		-0.67

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.267
r_dihedral_angle_4_deg	15.147
r_dihedral_angle_3_deg	14.512
r_dihedral_angle_1_deg	5.276
r_scangle_it	1.67
r_angle_refined_deg	1.085
r_scbond_it	0.996
r_mcangle_it	0.807
r_mcbond_it	0.462
r_nbtor_refined	0.294
r_nbd_refined	0.177
r_symmetry_vdw_refined	0.174
r_symmetry_hbond_refined	0.169
r_xyhbond_nbd_refined	0.129
r_chiral_restr	0.062
r_bond_refined_d	0.009
r_gen_planes_refined	0.003
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_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1293
Nucleic Acid Atoms
Solvent Atoms	94
Heterogen Atoms	29

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing