Experiment: 2V50

The Missing Part of the Bacterial MexAB-OprM System: Structural determination of the Multidrug Exporter MexB

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2J8S	PDB ENTRY 2J8S

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.5		30% PEG400, 50MM NA-ACETATE, 230MM NACL, pH 4.5

Crystal Properties
Matthews coefficient	Solvent content
3.65	66

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 125.05	α = 86.99
b = 134.58	β = 69.7
c = 151.02	γ = 88.16

Symmetry
Space Group	P 1

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	MARRESEARCH		2008-05-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA		SLS	X06SA

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	3	50	95.7	0.04	15.26	2.4		176904		2	88.33

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	3	3.1	87		0.7	1.7	2.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 2J8S	3	49.76	1.99	176904	3539	96.3	0.243	0.242	0.2411	0.287	0.2839	100.94

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]
6.319	23.1156	3.664	4.3052	13.6682	-10.6242

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	17.135
f_angle_d	0.965
f_chiral_restr	0.066
f_bond_d	0.005
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	46348
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	280

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing