2QJV

Crystal structure of an iolb-like protein (stm4420) from salmonella typhimurium lt2 at 1.90 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	NANODROP, 0.01M Nickel (II) chloride, 1.0M Lithium sulfate, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 200.14	α = 90
b = 200.14	β = 90
c = 200.14	γ = 90

Symmetry
Space Group	I 2 3

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	MARMOSAIC 325 mm CCD	Flat mirror (vertical focusing)	2007-04-29	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.91837, 0.97913, 0.97883	SSRL	BL11-1

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	1.9	29.514	99.8	0.088	8.27			104039		-3	27.76

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	1.9	1.97	99		0.614	1.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	1.9	29.514	103941	5190	99.92	0.161	0.16	0.181	RANDOM	30.283

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.361
r_dihedral_angle_3_deg	11.058
r_dihedral_angle_4_deg	8.146
r_scangle_it	6.436
r_dihedral_angle_1_deg	5.401
r_scbond_it	4.968
r_mcangle_it	2.714
r_mcbond_it	1.933
r_angle_refined_deg	1.867
r_angle_other_deg	1.144
r_mcbond_other	0.537
r_symmetry_vdw_refined	0.269
r_xyhbond_nbd_refined	0.219
r_symmetry_hbond_refined	0.209
r_nbd_other	0.201
r_nbd_refined	0.183
r_symmetry_vdw_other	0.183
r_nbtor_refined	0.172
r_nbtor_other	0.086
r_chiral_restr	0.073
r_bond_refined_d	0.018
r_gen_planes_refined	0.008
r_bond_other_d	0.003
r_gen_planes_other	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4195
Nucleic Acid Atoms
Solvent Atoms	721
Heterogen Atoms	43

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SOLVE	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
MAR345	data collection
XDS	data reduction