8FEO

16mer self-complementary duplex RNA with two separated native U:U pairs

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	293	0.08 M Strontium chloride hexahydrate, 0.02 M Magnesium chloride hexahydrate, 0.04 M Sodium cacodylate trihydrate pH 7.0, 20% v/v (+/-)-2-Methyl-2,4-pentanediol, 0.012 M Spermine tetrahydrochloride

Crystal Properties
Matthews coefficient	Solvent content
2.05	40.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.503	α = 90
b = 41.503	β = 90
c = 125.299	γ = 120

Symmetry
Space Group	H 3 2

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 EIGER X 16M		2022-04-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-B	1.033175	APS	23-ID-B

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	1.52	17.8	98.3	0.075	0.081	0.029	0.998	36.4	8.4		6587

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	1.52	1.55	99.1		0.234	0.253	0.093	0.973	3	7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	THROUGHOUT	1.52	17.796	6587	320	98.182	0.2	0.198	0.2393	21.388

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]
0.008	0.004		0.008		-0.027

RMS Deviations
Key	Refinement Restraint Deviation
r_lrange_other	4.636
r_lrange_it	4.62
r_angle_refined_deg	2.559
r_scangle_it	2.358
r_scangle_other	2.356
r_scbond_it	1.722
r_scbond_other	1.719
r_angle_other_deg	0.688
r_nbd_other	0.414
r_nbtor_refined	0.238
r_chiral_restr	0.226
r_symmetry_nbd_refined	0.216
r_metal_ion_refined	0.21
r_xyhbond_nbd_refined	0.208
r_symmetry_nbd_other	0.201
r_symmetry_xyhbond_nbd_refined	0.197
r_symmetry_nbtor_other	0.086
r_nbd_refined	0.082
r_gen_planes_refined	0.028
r_bond_refined_d	0.015
r_bond_other_d	0.003
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	334
Solvent Atoms	73
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
xia2	data reduction
DIALS	data scaling
PHASER	phasing