3B6C

Crystal structure of the Streptomyces coelicolor TetR family protein ActR in complex with (S)-DNPA

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	14% PEG4000, 91mM sodium acetate, 45mM Bis-Tris, 23mM KCl, 9.1mM taurine, 4.6mM Tris, 0.45mM DTT and, after dehydration, less than 100 ug (S)-DNPA, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.28	46.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.969	α = 90
b = 79.396	β = 90
c = 103.453	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 4	collimating and focusing mirrors	2006-11-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X8C	1.1	NSLS	X8C

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	2.3	49.23	92.1	0.047	17.6	4.63		19458	1	1

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)
	2.3	2.38	95.7		0.211	4.3	4.47

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 2OPT	2.3	41.85	19458	14054	743	70.04	0.24605	0.24392	0.28703	RANDOM	83.439

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]
-5			5.96		-0.96

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.099
r_dihedral_angle_4_deg	23.685
r_dihedral_angle_3_deg	21.245
r_angle_other_deg	9.262
r_dihedral_angle_1_deg	6.666
r_scangle_it	2.81
r_mcangle_it	2.404
r_scbond_it	1.829
r_mcbond_it	1.354
r_angle_refined_deg	0.92
r_symmetry_hbond_refined	0.431
r_nbd_other	0.419
r_symmetry_vdw_refined	0.343
r_nbtor_refined	0.335
r_nbd_refined	0.3
r_xyhbond_nbd_refined	0.269
r_nbtor_other	0.245
r_chiral_restr	0.078
r_gen_planes_refined	0.012
r_bond_refined_d	0.007
r_bond_other_d	0.002
r_gen_planes_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	3082
Nucleic Acid Atoms
Solvent Atoms	146
Heterogen Atoms	66

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
d*TREK	data reduction
d*TREK	data scaling
CCP4	phasing
Coot	model building