4DLP

Crystal structure of methionyl-tRNA synthetase MetRS from Brucella melitensis bound to selenomethionine

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	289	BrabA.10201.a.A1 PW27667 at 28.7 mg/mL with 5 mM selenomethionine and 5 mM ATP against JCSG+ screen condition C3, 0.2 M ammonium nitrate, 20% PEG 3350, crystal tracking ID 226820c3, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.52	51.15

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 116.25	α = 90
b = 77.62	β = 119.67
c = 116.27	γ = 90

Symmetry
Space Group	P 1 21 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	MARMOSAIC 225 mm CCD		2012-02-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.97872	APS	21-ID-F

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	2.65	50	99.3	0.071	15.21	3.7	52724	52379		-3	51.6

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	2.65	2.72	99.5		0.486	2.63

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 2x1l	2.65	50	52379	2671	99.6	0.1991	0.1971	0.2373	RANDOM	48.2529

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]
-2.33		-1.21	3.8		-2.68

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.969
r_dihedral_angle_4_deg	18.08
r_dihedral_angle_3_deg	13.16
r_dihedral_angle_1_deg	5.652
r_angle_refined_deg	1.421
r_angle_other_deg	1.149
r_chiral_restr	0.075
r_bond_refined_d	0.012
r_gen_planes_refined	0.007
r_bond_other_d	0.005
r_gen_planes_other	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10934
Nucleic Acid Atoms
Solvent Atoms	91
Heterogen Atoms	27

Software

Software
Software Name	Purpose
XSCALE	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction