2C40

CRYSTAL STRUCTURE OF INOSINE-URIDINE PREFERRING NUCLEOSIDE HYDROLASE FROM BACILLUS ANTHRACIS AT 2.2A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5		22% PEG 3350, 0.2 M NACL, TRIS-HCL PH 8.5

Crystal Properties
Matthews coefficient	Solvent content
2.6	51.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.154	α = 90
b = 78.154	β = 90
c = 203.626	γ = 120

Symmetry
Space Group	P 32 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 CCD		2005-09-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4		ESRF	ID14-4

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	2.2	24.81	99.9	0.07	23.7	6.6		37372

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	2.2	2.28	99.9		0.6	3.02	6.5

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 1HOZ	2.2	67.88	35505	1867	99.6	0.207	0.205	0.242	RANDOM	40.68

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]
0.67	0.33		0.67		-1

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.696
r_dihedral_angle_3_deg	18.91
r_dihedral_angle_4_deg	17.149
r_dihedral_angle_1_deg	6.83
r_scangle_it	2.789
r_scbond_it	1.941
r_angle_refined_deg	1.781
r_mcangle_it	1.068
r_angle_other_deg	1.004
r_mcbond_it	0.655
r_symmetry_vdw_refined	0.339
r_symmetry_vdw_other	0.297
r_nbd_refined	0.215
r_symmetry_hbond_refined	0.209
r_xyhbond_nbd_refined	0.202
r_nbd_other	0.19
r_nbtor_refined	0.179
r_chiral_restr	0.12
r_nbtor_other	0.095
r_bond_refined_d	0.018
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_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	4691
Nucleic Acid Atoms
Solvent Atoms	125
Heterogen Atoms	20

Software

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