6XYJ

Hfq from E.coli with inserted long loop L4 sequence

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	5% PEG 400, 50 mM PIPES 7.0, 30 mM MgCl2

Crystal Properties
Matthews coefficient	Solvent content
2.32	46.94

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.811	α = 90
b = 112.616	β = 119.434
c = 78.054	γ = 90

Symmetry
Space Group	C 1 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	PIXEL	DECTRIS PILATUS3 S 6M		2017-11-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.972420	ESRF	ID23-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	2.77	50	97.8	0.077	0.1	0.069	0.998	6.9	3.7		14459

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.77	2.92	87.3		1.269	1.611	1.134	0.584	0.8	3.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	1U1S	2.772	43.401	14458	715	98.1	0.215	0.211	0.2846	97.738

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]
-1.443		5.328	-7.485		1.781

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.446
r_dihedral_angle_3_deg	20.657
r_dihedral_angle_4_deg	16.984
r_lrange_it	12.861
r_lrange_other	12.861
r_scangle_it	9.546
r_scangle_other	9.545
r_mcangle_it	9.044
r_mcangle_other	9.043
r_dihedral_angle_1_deg	7.168
r_scbond_it	6.207
r_scbond_other	6.205
r_mcbond_it	6.134
r_mcbond_other	6.131
r_angle_refined_deg	1.365
r_angle_other_deg	1.131
r_nbd_other	0.231
r_nbd_refined	0.224
r_symmetry_nbd_other	0.21
r_symmetry_xyhbond_nbd_refined	0.198
r_symmetry_xyhbond_nbd_other	0.181
r_xyhbond_nbd_refined	0.177
r_nbtor_refined	0.16
r_symmetry_nbd_refined	0.154
r_symmetry_nbtor_other	0.076
r_chiral_restr	0.057
r_bond_refined_d	0.005
r_gen_planes_refined	0.005
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3861
Nucleic Acid Atoms
Solvent Atoms	1
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
MoRDa	phasing