3GTZ

Crystal structure of a putative translation initiation inhibitor from Salmonella typhimurium

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7	294	10% PEG 6K, 2.0M sodium chloride, pH 7.0, vapor diffusion, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
4.01	69.33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 100.39	α = 90
b = 100.39	β = 90
c = 131.939	γ = 90

Symmetry
Space Group	P 41 21 2

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	MAR CCD 165 mm		2009-03-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.97958	APS	31-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.5	22.875	99.9	0.089	0.089	33.3	28.7	24036	24012			58

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.5	2.64	100		0.436	0.436	8.7	29.1	3436

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	2.5	20	23928	23823	1223	99.56	0.233	0.232	0.26	RANDOM	52.883

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]
0.97			0.97		-1.95

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.525
r_dihedral_angle_3_deg	18.044
r_dihedral_angle_4_deg	17.56
r_dihedral_angle_1_deg	6.207
r_scangle_it	3.21
r_scbond_it	2.228
r_angle_refined_deg	1.489
r_mcangle_it	1.474
r_angle_other_deg	0.946
r_mcbond_it	0.937
r_symmetry_vdw_other	0.258
r_symmetry_hbond_refined	0.23
r_nbd_refined	0.214
r_nbd_other	0.199
r_symmetry_vdw_refined	0.193
r_nbtor_refined	0.181
r_mcbond_other	0.171
r_xyhbond_nbd_refined	0.148
r_chiral_restr	0.091
r_nbtor_other	0.089
r_bond_refined_d	0.017
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2642
Nucleic Acid Atoms
Solvent Atoms	15
Heterogen Atoms	6

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345	data collection
MOSFLM	data reduction
SHELXCD	phasing
SHELXE	model building