Experiment: 4NX1

Crystal structure of a trap periplasmic solute binding protein from Sulfitobacter sp. nas-14.1, target EFI-510292, with bound alpha-D-taluronate

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	298	Protein (32.6 mg/ml, 10 mM HEPES pH 7.5, 5 mM DTT, 1 mM D-Taluronate); Reservoir (0.1 M Tris Hydrochloride pH 8.5, 1.2 M tri-Sodium Citrate Dihydrate); Cryoprotection (1.6 M Na3Citrate), VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.46	50.01

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 127.523	α = 90
b = 82.425	β = 140.06
c = 106.815	γ = 90

Symmetry
Space Group	C 1 2 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 MX-225	MIRRORS	2013-11-20	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	1.6	32.55	99.8	0.089	0.089	11.8	7.4	93292	93292			18.99

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	1.6	1.69	99.7		0.811	0.811	2.2	7	13576

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 (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	1.6	27.159	93281	93281	4675	99.78	0.1537	0.1525	0.1553	0.1769	0.1793	RANDOM	27.8729

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	13.021
f_angle_d	1.289
f_chiral_restr	0.078
f_bond_d	0.01
f_plane_restr	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4727
Nucleic Acid Atoms
Solvent Atoms	797
Heterogen Atoms	26

Software

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