4OAN

Crystal structure of a TRAP periplasmic solute binding protein from rhodopseudomonas palustris HaA2 (RPB_2686), TARGET EFI-510221, with density modeled as (S)-2-hydroxy-2-methyl-3-oxobutanoate ((S)-2-Acetolactate)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	sitting drop vapor diffusion	6.9	298	Protein (29.4 mg/ml, 10 mM HEPES pH 7.5, 5 mM DTT); Reservoir (0.2 M Sodium Thiocyanate pH 6.9, 20 %(w/v) PEG 3350); Cryoprotection (Reservoir with 20% Glycerol), sitting drop vapor diffusion, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.16	43.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.064	α = 62.62
b = 59.609	β = 71.24
c = 61.005	γ = 67.18

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	RAYONIX MX225HE	MIRRORS	2013-11-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.9793	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	1.35	53.334	94.6	0.069	0.069	11.8	3.9	129995	129995			9.19

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	1.35	1.42	92.6		0.532	0.532	1.4	3.9	18628

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	1.35	31.401	129985	129985	6523	94.62	0.1439	0.1439	0.1429	0.1625	RANDOM	13.9507

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
f_dihedral_angle_d	12.731
f_angle_d	1.281
f_chiral_restr	0.077
f_bond_d	0.01
f_plane_restr	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4846
Nucleic Acid Atoms
Solvent Atoms	914
Heterogen Atoms	25

Software

Software
Software Name	Purpose
SCALA	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
MOSFLM	data reduction
PHENIX	phasing

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.