3G5J

Crystal structure of N-terminal domain of putative ATP/GTP binding protein from Clostridium difficile 630

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5	292	0.2 M Lithium citrate, 20% PEG 3350, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
3.51	65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 96.489	α = 90
b = 60.192	β = 108.62
c = 79.107	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	100	CCD	ADSC QUANTUM Q315r	MIRRORS	2009-01-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID		APS	19-ID

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	1.76	40	94.5	0.078	18.5	2.9		40514		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	1.76	1.79	59.3		0.415	2.2	2.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.76	40	2	40494	38452	2042	94.8	0.174	0.172	0.198	RANDOM	13.72

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]
-1.08		-1.96	3.47		-3.65

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.455
r_dihedral_angle_4_deg	20.907
r_dihedral_angle_3_deg	14.407
r_dihedral_angle_1_deg	5.28
r_scangle_it	4.704
r_scbond_it	2.874
r_mcangle_it	1.638
r_angle_refined_deg	1.553
r_angle_other_deg	0.934
r_mcbond_it	0.914
r_mcbond_other	0.307
r_chiral_restr	0.099
r_bond_refined_d	0.019
r_gen_planes_refined	0.008
r_bond_other_d	0.007
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
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	2085
Nucleic Acid Atoms
Solvent Atoms	282
Heterogen Atoms	26

Software

Software
Software Name	Purpose
SBC-Collect	data collection
HKL-3000	phasing
MLPHARE	phasing
SHELXCD	phasing
SHELXE	model building
CCP4	model building
Coot	model building
ARP/wARP	model building
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
CCP4	phasing
ARP	model building