Experiment: 4AXO

Structure of the Clostridium difficile EutQ protein

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.5		PROTEIN IN 150 MM NACL, 50 MM TRIS.HCL PH 8.0 AT 8 MG/ML. HANGING DROP VAPOUR DIFFUSION, 1/1 UL DROPS OVER 1ML OF PRECIPITANT: 100 MM SODIUM ACETATE PH 4.5, 35 % (W/V) PEG 6000, 200 MM MGCL2. CRYPROTECTED WITH WELL SOLUTION SUPPLEMENTED WITH 20 % (V/V) PEG 300

Crystal Properties
Matthews coefficient	Solvent content
2.12	42.05

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 82.332	α = 90
b = 66.578	β = 117.54
c = 58.95	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	93	CCD	ADSC CCD	MIRRORS	2011-07-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04		Diamond	I04

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	1	43.15	97.9	0.06	11.5	2.3		148309		2	9.8

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	1	1.05	99.4		0.36	2.4	2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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 2PYT	1	36.503	1.34	148298	7431	97.76	0.1363	0.1357	0.1349	0.147	0.1464	14.74

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]
1.233		-0.5928	1.9062		-3.1392

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	12.433
f_angle_d	1.601
f_chiral_restr	0.098
f_bond_d	0.014
f_plane_restr	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2100
Nucleic Acid Atoms
Solvent Atoms	366
Heterogen Atoms	1

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
SCALA	data scaling
PHASER	phasing