7A9T | pdb_00007a9t

Racemic compound of RNA duplexes.

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6ZQ9

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 polyethylene glycol 8000.

Crystal Properties
Matthews coefficient	Solvent content
2.1	41.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 21.109	α = 105.858
b = 26.722	β = 97.598
c = 38.971	γ = 90.857

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		2019-05-01	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 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	1.7	37	88	0.1	0.142	0.986	5.1	1.9		15768

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	1.7	1.8			0.35	0.496	0.884	2.02

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	6ZQ9	1.7	37	8271	423	92.506	0.191	0.1884	0.2	0.2479	0.26	14.819

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]
-0.06	1.067	-0.813	1.12	-0.653	-0.398

RMS Deviations
Key	Refinement Restraint Deviation
r_lrange_it	4.593
r_lrange_other	3.702
r_angle_other_deg	2.424
r_angle_refined_deg	1.638
r_scangle_it	1.336
r_scangle_other	1.335
r_scbond_other	0.947
r_scbond_it	0.946
r_xyhbond_nbd_refined	0.286
r_symmetry_nbd_other	0.269
r_nbtor_refined	0.249
r_nbd_refined	0.215
r_symmetry_xyhbond_nbd_refined	0.207
r_nbd_other	0.19
r_metal_ion_refined	0.179
r_symmetry_nbd_refined	0.148
r_symmetry_nbtor_other	0.097
r_chiral_restr	0.088
r_symmetry_xyhbond_nbd_other	0.038
r_gen_planes_refined	0.018
r_bond_refined_d	0.009
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	162
Heterogen Atoms	7

Software

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