3HTA

Crystal structure of multidrug binding protein EbrR complexed with imidazole

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		MODEL FORM MAD DATA OF EBRR

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7	295	30% PEG 1000, 0.1 M Calcium chloride, 0.1 M Imidazole, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
3.25	62.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.471	α = 90
b = 77.922	β = 90
c = 203.265	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 315r		2007-02-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1		ALS	8.3.1

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	67.7	99.6	0.03	48.3	3.6		54199		2

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	MODEL FORM MAD DATA OF EBRR	2.3	67.7	54199	42351	2160	98.7	0.2524	0.2524	0.2922	RANDOM

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]
-2.779			24.405		-21.626

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	2.88
c_scbond_it	1.966
c_mcangle_it	1.926
c_angle_deg	1.26
c_mcbond_it	1.168
c_bond_d	0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5581
Nucleic Acid Atoms
Solvent Atoms	168
Heterogen Atoms	20

Software

Software
Software Name	Purpose
PHASER	phasing
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling