4L51

Crystal structures of the LsrR proteins complexed with phospho-AI-2 and its two different analogs reveal distinct mechanisms for ligand recognition

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5	293	0.1 M Bis-Tris, 9.1% PEG3350, 0.01M Barium chloride dehydrate, pH 6.5, VAPOR DIFFUSION, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.8	56.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 116.613	α = 90
b = 116.613	β = 90
c = 79.744	γ = 120

Symmetry
Space Group	P 65

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 315r		2012-06-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE BL-17A	1.00000	Photon Factory	BL-17A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.9	42.7	99.4			48351	45849	1	1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.9	1.97	98.4

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	MOLECULAR REPLACEMENT	THROUGHOUT	1.9	42.7	45849	2431	99.3	0.16795	0.16605	0.20387	RANDOM	25.187

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]
0.03	0.03		0.03		-0.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.412
r_dihedral_angle_4_deg	21.383
r_dihedral_angle_3_deg	15.058
r_dihedral_angle_1_deg	5.843
r_angle_refined_deg	2.06
r_angle_other_deg	0.983
r_chiral_restr	0.139
r_bond_refined_d	0.019
r_gen_planes_refined	0.01
r_gen_planes_other	0.003

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.412
r_dihedral_angle_4_deg	21.383
r_dihedral_angle_3_deg	15.058
r_dihedral_angle_1_deg	5.843
r_angle_refined_deg	2.06
r_angle_other_deg	0.983
r_chiral_restr	0.139
r_bond_refined_d	0.019
r_gen_planes_refined	0.01
r_gen_planes_other	0.003
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3620
Nucleic Acid Atoms
Solvent Atoms	328
Heterogen Atoms	28

Software

Software
Software Name	Purpose
ADSC	data collection
PHASES	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling

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.