Experiment: 5UXX

Co-crystal structure of the sigma factor RpoE in complex with the anti-sigma factor NepR from Bartonella quintana

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.2	289	BaquA.17208.a.CB1.PS01985 at 24.97mg/ml was mixed 1:1 with a condition based on MCSG2(b11): 29% (w/v) PEG-3350, 0.2 M lithium sulfate, 0.1 M Bis-Tris/HCl, pH = 7.2.

Crystal Properties
Matthews coefficient	Solvent content
2.96	62.26

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.42	α = 90
b = 92.42	β = 90
c = 127.74	γ = 120

Symmetry
Space Group	P 32 2 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	RAYONIX MX-225		2014-07-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.97872	APS	21-ID-F

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	2.45	46.21	99.7	0.106	10.75	3.75		44774		-3	30.56

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	2.45	2.51	99.6		0.516	2.71

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	SAD	FREE R-VALUE	2.45	46.21	1.92	44764	2182	99.7	0.192	0.191	0.1935	0.223	0.2245	41.88

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.547
f_angle_d	0.523
f_chiral_restr	0.019
f_bond_d	0.002
f_plane_restr	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3212
Nucleic Acid Atoms
Solvent Atoms	154
Heterogen Atoms	15

Software

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