5N1C

Iodinated form of the Mycobacterium tuberculosis repressor EthR2

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.2	293	200 mM NaCl, 200 mM Na citrate pH 4.2 and 15% polyethylene glycol monomethylether 5000

Crystal Properties
Matthews coefficient	Solvent content
1.99	38.25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.43	α = 90
b = 75.04	β = 90
c = 88	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	RIGAKU SATURN 944+		2013-08-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-D	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	2.6	60	99.6	0.234	0.999	19.3	38.5		12520			49.3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.6	2.67	98.9		1.7	0.7	2.6	26.2

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	2.6	57.1	11878	626	99.16	0.24325	0.23997	0.30802	RANDOM	48.089

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]
-0.05			0.02		0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.928
r_dihedral_angle_3_deg	15.782
r_dihedral_angle_4_deg	13.045
r_long_range_B_refined	9.451
r_long_range_B_other	9.45
r_dihedral_angle_1_deg	6.458
r_scangle_other	6.186
r_mcangle_it	5.227
r_mcangle_other	5.226
r_scbond_it	4.047
r_scbond_other	4.046
r_mcbond_it	3.353
r_mcbond_other	3.353
r_angle_refined_deg	1.553
r_angle_other_deg	0.976
r_chiral_restr	0.085
r_bond_refined_d	0.012
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2911
Nucleic Acid Atoms
Solvent Atoms	6
Heterogen Atoms	9

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
SHELXCD	phasing
PHASER	phasing
PARROT	phasing
BUCCANEER	model building