Experiment: 3SOP

Crystal Structure Of Human Septin 3 GTPase Domain

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2QNR	PDB ENTRY 2QNR

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.2	291	100 mM Bis-Tris, pH 6.2, 200 mM magnesium formate, 18% PEG3350, 5% ethylene glycol, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.46	50.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.244	α = 90
b = 150.414	β = 90
c = 157.997	γ = 90

Symmetry
Space Group	C 2 2 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	PIXEL	PSI PILATUS 6M		2010-09-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	0.97627	ESRF	ID29

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	2.885	49.352	98.4	0.123	11.81	5.02	14708	14242		-3	59.387

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	2.885	3.06	91.8		0.62	2.34

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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 2QNR	2.885	49.352	2	14708	14218	709	98.27	0.252	0.251	0.2572	0.2717	0.2741	64.9054

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]
20.9527			-29.5442		8.5909

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	16.991
f_angle_d	0.906
f_chiral_restr	0.109
f_bond_d	0.008
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3700
Nucleic Acid Atoms
Solvent Atoms	11
Heterogen Atoms	58

Software

Software
Software Name	Purpose
XSCALE	data scaling
PHASER	phasing
DM	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
DNA	data collection
XDS	data reduction