5EW4

Crystal structure of C9ORF72 Antisense CCCCGG repeat RNA associated with Lou Gehrig's disease and frontotemporal dementia, crystallized with Sr2+

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	0.04 M sodium cacodylate, 50 mM KCl, 0.04 M LiCl, 0.012 M spermine, 0.08 M strontium chloride, 10% (v/v) (+/-)-2-methyl-2,4-pentanediol, equilibrated against 35% (v/v) (+/-)-2-methyl-2,4-pentanediol

Crystal Properties
Matthews coefficient	Solvent content
2.08	40.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.02	α = 90
b = 47.615	β = 90
c = 58.9	γ = 90

Symmetry
Space Group	P 21 21 21

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	ADSC QUANTUM 315r	monochromator	2014-04-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97924	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	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	1.47	50	98.6	0.032	0.036	0.016	14.1	4.5		20000			13.58

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	1.47	1.5	89.4		0.542	0.648	0.343	0.713		2.9	888

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	AB INITIO	FREE R-VALUE	1.47	23.923	1.38	19269	1928	95.32	0.2179	0.2155	0.2389	throughout	23.1584

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	6.489
f_angle_d	0.508
f_chiral_restr	0.025
f_bond_d	0.024
f_plane_restr	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	818
Solvent Atoms	162
Heterogen Atoms	13

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-3000	data scaling
PDB_EXTRACT	data extraction
HKL-3000	data reduction
ACORN	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.