7QEH

LTA-binding domain of SlpA, the S-layer protein from Lactobacillus amylovorus

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	Morpheus screen condition #2-29 (20 mM of each carboxylic acid (sodium formate, ammonium acetate, sodium citrate tribasic dehydrate, sodium potassium tartrate tetrahydrate, and sodium oxamate), 0.1 M sodium HEPES- MOPS pH 7.5 with 20 % v/v PEG 500 MME and 10 % w/v PEG 20000). A protein stock solution of 20 mg/mL in 10 mM HEPES pH 7 and 100 mM NaCl was used. 1uL drop with 1:1 ration protein to reservoir solution.

Crystal Properties
Matthews coefficient	Solvent content
1.83	32.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 30.561	α = 90
b = 43.481	β = 90
c = 89.107	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 6M-F		2015-03-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.9789	ESRF	ID23-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	1.67	39.08	99.39	0.109	0.114	0.032	0.999	19.84	12.2		26186			18.71

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.67	1.734			0.86	0.316	0.805	3.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	SAD	FREE R-VALUE	1.67	39.08	1.34	26185	2612	99.16	0.1655	0.1626	0.1904	24.47

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	12.928
f_angle_d	0.9983
f_chiral_restr	0.0666
f_bond_d	0.0091
f_plane_restr	0.0056

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	965
Nucleic Acid Atoms
Solvent Atoms	75
Heterogen Atoms	5

Software

Software
Software Name	Purpose
XDS	data reduction
SHELXCD	phasing
SHELXE	model building
PHENIX	refinement
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 R01GM133198.