3ECH

The MarR-family repressor MexR in complex with its antirepressor ArmR

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	5.5	291	20% PEG 3000, 0.1M sodium citrate, pH 5.5, microbatch, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
1.9	35.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.201	α = 90
b = 57.151	β = 90
c = 91.931	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	ADSC QUANTUM 315	KOHZU: Double Crystal Si(111)		M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	1.0000	ALS	8.2.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.802	48.56		0.061	35.1	7.9		26074

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.802	1.86			0.056	3	8

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1LNW	1.802	48.56	24697	24697	1325	99.82	0.1782	0.1782	0.17558	0.2291	RANDOM	12.527

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]
0.81			-0.04		-0.77

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.269
r_dihedral_angle_4_deg	17.283
r_dihedral_angle_3_deg	12.71
r_dihedral_angle_1_deg	4.515
r_scangle_it	3.357
r_scbond_it	2.259
r_angle_refined_deg	1.401
r_mcangle_it	1.162
r_mcbond_it	1.032
r_angle_other_deg	0.966
r_symmetry_vdw_other	0.246
r_mcbond_other	0.244
r_nbd_refined	0.237
r_symmetry_vdw_refined	0.234
r_nbd_other	0.189
r_symmetry_hbond_refined	0.185
r_xyhbond_nbd_refined	0.174
r_nbtor_refined	0.173
r_chiral_restr	0.087
r_nbtor_other	0.083
r_bond_refined_d	0.014
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2346
Nucleic Acid Atoms
Solvent Atoms	212
Heterogen Atoms

Software

Software
Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling