3CS3

Crystal structure of sugar-binding transcriptional regulator (LacI family) from Enterococcus faecalis

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	294	2.8M Ammonium sulfate pH 5.0, 100mM Sodium citrate, 10% Glycerol, VAPOR DIFFUSION, SITTING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
3.17	61.14

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 93.25	α = 90
b = 93.25	β = 90
c = 158.02	γ = 120

Symmetry
Space Group	P 65 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	77	CCD	MAR CCD 165 mm		2008-03-14	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)	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	2.35	50	100	0.117	4	19.2		17634		-0.5	44.05

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	2.35	2.43	100		0.93	1.7	14.7

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	SAD	THROUGHOUT	2.4	20	15978	516	100	0.20567	0.20432	0.24916	RANDOM	54.519

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]
-1.1	-0.55		-1.1		1.66

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.056
r_dihedral_angle_3_deg	19.298
r_dihedral_angle_4_deg	15.59
r_scangle_it	9.324
r_scbond_it	6.99
r_mcangle_it	6.32
r_dihedral_angle_1_deg	6.197
r_mcbond_it	4.261
r_angle_refined_deg	1.168
r_nbtor_refined	0.301
r_xyhbond_nbd_refined	0.159
r_nbd_refined	0.142
r_symmetry_hbond_refined	0.122
r_symmetry_vdw_refined	0.119
r_chiral_restr	0.087
r_bond_refined_d	0.008
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2112
Nucleic Acid Atoms
Solvent Atoms	49
Heterogen Atoms	26

Software

Software
Software Name	Purpose
SHELX	model building
REFMAC	refinement
MAR345	data collection
HKL-2000	data reduction
HKL-2000	data scaling
SHELXD	phasing