3IG2

The Crystal Structure of a Putative Phenylalanyl-tRNA synthetase (PheRS) beta chain domain from Bacteroides fragilis to 2.1A

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		277	20% PEG 3350, 0.2M Magnesium chloride, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.26	45.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.496	α = 99.04
b = 60.335	β = 100.37
c = 78.805	γ = 105.08

Symmetry
Space Group	P 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 315		2009-06-15		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.9794	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	2.09	50	98	0.068	15.9	2.6		47621

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	2.1	2.18	97.3		0.241		2.6	4765

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		THROUGHOUT	2.09	28.45	47599	2416	97.46	0.197	0.195	0.236	RANDOM	14.225

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]
-0.01		0.15		0.13	0.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.11
r_dihedral_angle_3_deg	16.621
r_dihedral_angle_4_deg	16.617
r_dihedral_angle_1_deg	6.102
r_scangle_it	2.305
r_scbond_it	1.547
r_angle_refined_deg	1.343
r_mcangle_it	0.866
r_mcbond_it	0.48
r_chiral_restr	0.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.11
r_dihedral_angle_3_deg	16.621
r_dihedral_angle_4_deg	16.617
r_dihedral_angle_1_deg	6.102
r_scangle_it	2.305
r_scbond_it	1.547
r_angle_refined_deg	1.343
r_mcangle_it	0.866
r_mcbond_it	0.48
r_chiral_restr	0.09
r_bond_refined_d	0.012
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5992
Nucleic Acid Atoms
Solvent Atoms	258
Heterogen Atoms	1

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
HKL-3000	data reduction
SHELX	phasing
MLPHARE	phasing
DM	phasing
ARP/wARP	model building
Coot	model building

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.