6ZRS

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 polyehylene glycol 8000

Crystal Properties
Matthews coefficient	Solvent content
2	38.42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 20.97	α = 105.839
b = 26.43	β = 96.657
c = 38.68	γ = 92.025

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		2018-12-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)	1.283	PETRA III, EMBL c/o DESY	P13 (MX1)

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.52	37	88.2	0.069	0.081	0.998	9.49	3.55		10765

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.52	1.61	74.1		0.566	0.664	0.889	1.78	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	6ZQ9	1.52	36.893	10761	567	88.321	0.19	0.1874	0.2352	16.865

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]
-0.312	0.435	-0.357	1.633	-0.462	-0.823

RMS Deviations
Key	Refinement Restraint Deviation
r_lrange_it	4.779
r_lrange_other	3.948
r_angle_refined_deg	1.746
r_scangle_it	1.691
r_scangle_other	1.69
r_scbond_it	1.288
r_scbond_other	1.286
r_angle_other_deg	1.266
r_symmetry_nbd_other	0.277
r_xyhbond_nbd_refined	0.263
r_nbtor_refined	0.247
r_symmetry_xyhbond_nbd_refined	0.233
r_nbd_refined	0.208
r_nbd_other	0.184
r_symmetry_xyhbond_nbd_other	0.174
r_metal_ion_refined	0.155
r_symmetry_nbd_refined	0.142
r_chiral_restr	0.07
r_symmetry_nbtor_other	0.066
r_gen_planes_refined	0.022
r_bond_refined_d	0.009
r_bond_other_d	0.003
r_gen_planes_other	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	676
Solvent Atoms	181
Heterogen Atoms	7

Software

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