7A9S

Racemic compound of RNA duplexes.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	293	0.2 M zinc acetate, 0.1 M cacodylate buffer, 18% w/v/ polyeth7ylene glycol 8000.

Crystal Properties
Matthews coefficient	Solvent content
2.08	40.93

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 21.193	α = 105.044
b = 26.339	β = 97.539
c = 38.928	γ = 91.127

Symmetry
Space Group	P 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 PILATUS 6M		2019-02-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1	1.283	BESSY	14.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Rrim 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	2.29	37.2	85.7	0.133	0.189	0.972	3.87	1.9		6237

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.29	2.43			0.474	0.67	0.631	1.38

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	6ZQ9	2.29	37.2	3286	178	90.573	0.175	0.1691	0.2742	23.557

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]
-0.4	1.198	-0.666	2.606	-0.111	-1.685

RMS Deviations
Key	Refinement Restraint Deviation
r_lrange_it	5.143
r_lrange_other	4.725
r_scangle_it	2.735
r_scangle_other	2.734
r_angle_other_deg	2.269
r_scbond_other	1.776
r_scbond_it	1.774
r_angle_refined_deg	1.707
r_xyhbond_nbd_refined	0.29
r_symmetry_nbd_other	0.284
r_nbtor_refined	0.256
r_symmetry_xyhbond_nbd_refined	0.245
r_nbd_other	0.204
r_nbd_refined	0.191
r_chiral_restr	0.116
r_symmetry_nbtor_other	0.095
r_metal_ion_refined	0.091
r_symmetry_xyhbond_nbd_other	0.059
r_symmetry_nbd_refined	0.049
r_gen_planes_refined	0.015
r_bond_refined_d	0.008
r_bond_other_d	0.003
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	676
Solvent Atoms	98
Heterogen Atoms	7

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing