Experiment: 2XTY

Structure of QnrB1 (R167E-Trypsin Treated), a plasmid-mediated fluoroquinolone resistance protein

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5	293	100 MM BISTRISPROPANE/CITRATE PH 7.5, 15% PEG 3350 AT 20 DEGREES C

Crystal Properties
Matthews coefficient	Solvent content
2.24	42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.33	α = 90
b = 55.33	β = 90
c = 282.46	γ = 90

Symmetry
Space Group	P 41 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	93	CCD	ADSC QUANTUM 315			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A		NSLS	X29A

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	1.8	40	99	0.06	19.3	7		40346			15.69

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	1.8	1.9	75.3		0.36	2.8	2.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	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 2XTX	1.8	51.517	39399	2003	93.41	0.1819	0.1798	0.1785	0.2209	0.2173	17.9

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]
-1.4141			-1.4141		2.8282

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.616
f_angle_d	1.18
f_chiral_restr	0.083
f_bond_d	0.01
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3211
Nucleic Acid Atoms
Solvent Atoms	323
Heterogen Atoms

Software

Software
Software Name	Purpose
PHENIX	refinement
MOSFLM	data reduction
SCALA	data scaling
PHENIX	phasing