Experiment: 2YLC

Structure of Salmonella typhimurium Hfq in complex with U6 RNA

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8		0.2 M NASCN, 20% PEG3350, pH 8.0

Crystal Properties
Matthews coefficient	Solvent content
2.1	40

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 61.19	α = 90
b = 61.19	β = 90
c = 28.35	γ = 120

Symmetry
Space Group	P 6

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	90	PIXEL	DECTRIS PILATUS 6M	MIRRORS	2010-06-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA		SLS	X10SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.3	30.6	100	0.077	16.6	9.1		15112		-3	13.31

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.3	1.4	100		0.69	3.6	7.4

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-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 2YLB	1.3	30.595	1.99	15112	762	99.93	0.1342	0.1317	0.1816	0.1946	19.4

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]
-0.6328			-0.6328		1.2656

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.853
f_angle_d	1.5
f_chiral_restr	0.088
f_bond_d	0.013
f_plane_restr	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	529
Nucleic Acid Atoms
Solvent Atoms	50
Heterogen Atoms	26

Software

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