3TB6

Structure of the effector-binding domain of arabinose repressor AraR from Bacillus subtilis

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	293	arabinose 50mM at 16.8mg/ml, 70mM HEPES pH7.5, 7% PEG8000, 6% ethylene glycol, 20% glycerol, 10mM spermidine, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.76	55.49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.068	α = 90
b = 106.333	β = 90
c = 111.847	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	CCD	MARMOSAIC 225 mm CCD	double crystal monochromator with 2 sets of Rh-coated mirrors	2011-01-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.2	0.917	BESSY	14.2

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	2.2	30	86.8	0.57	35.9	66	38046	33024

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	2.2	2.28	59.6		0.28	4.9	5.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	PDB entry 1JFT	2.21	29.91	36080	31295	1660	86.74	0.18808	0.1857	0.23099	RANDOM	51.952

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]
9.13			-5.41		-3.71

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.783
r_dihedral_angle_4_deg	18.205
r_dihedral_angle_3_deg	17.525
r_dihedral_angle_1_deg	6.613
r_scangle_it	1.95
r_angle_refined_deg	1.452
r_scbond_it	1.276
r_mcangle_it	0.737
r_mcbond_it	0.451
r_nbtor_refined	0.3
r_nbd_refined	0.206
r_symmetry_hbond_refined	0.171
r_xyhbond_nbd_refined	0.154
r_symmetry_vdw_refined	0.149
r_chiral_restr	0.096
r_bond_refined_d	0.014
r_gen_planes_refined	0.005
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	4459
Nucleic Acid Atoms
Solvent Atoms	245
Heterogen Atoms	32

Software

Software
Software Name	Purpose
MAR345dtb	data collection
MOLREP	phasing
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling