4JRD

Crystal structure of the parallel double-stranded helix of poly(A) RNA

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	CLSI BEAMLINE 08ID-1
Synchrotron site	CLSI
Beamline	08ID-1
Temperature [K]	100
Detector technology	CCD
Collection date	2010-05-29
Detector	MARMOSAIC 300 mm CCD
Spacegroup name	P 41 21 2
Unit cell lengths	22.800, 22.800, 163.700
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	41.000 - 1.000
R-factor	0.126
Rwork	0.118
R-free	0.15800
Structure solution method	AB INITIO PHASING
RMSD bond length	0.007
RMSD bond angle	0.021
Data reduction software	HKL-2000
Data scaling software	HKL-2000
Phasing software	SHELXD
Refinement software	SHELXL

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	41.000	1.100
High resolution limit [Å]	1.000	1.000
Rmerge	0.094	0.142
Number of reflections	22972
<I/σ(I)>	34.35	4.72
Completeness [%]	92.6	73.1
Redundancy	2.73	1.2

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP		294	RNA WATER SOLUTION PLUS BUFFER (10 MM HEPES, 50 MM NACL, 0.5 MM TCEP, PH 7.0) MIXED 1:1 V/V WITH 2 M (NH4)2SO4 + 0.2 M NH4NO3 AND EQUILIBRATED AGAINST 2 M (NH4)2SO4 + 0.2 M NH4NO3, VAPOR DIFFUSION, SITTING DROP, temperature 294K
1	VAPOR DIFFUSION, SITTING DROP		294	RNA WATER SOLUTION PLUS BUFFER (10 MM HEPES, 50 MM NACL, 0.5 MM TCEP, PH 7.0) MIXED 1:1 V/V WITH 2 M (NH4)2SO4 + 0.2 M NH4NO3 AND EQUILIBRATED AGAINST 2 M (NH4)2SO4 + 0.2 M NH4NO3, VAPOR DIFFUSION, SITTING DROP, temperature 294K
1	VAPOR DIFFUSION, SITTING DROP		294	RNA WATER SOLUTION PLUS BUFFER (10 MM HEPES, 50 MM NACL, 0.5 MM TCEP, PH 7.0) MIXED 1:1 V/V WITH 2 M (NH4)2SO4 + 0.2 M NH4NO3 AND EQUILIBRATED AGAINST 2 M (NH4)2SO4 + 0.2 M NH4NO3, VAPOR DIFFUSION, SITTING DROP, temperature 294K
1	VAPOR DIFFUSION, SITTING DROP		294	RNA WATER SOLUTION PLUS BUFFER (10 MM HEPES, 50 MM NACL, 0.5 MM TCEP, PH 7.0) MIXED 1:1 V/V WITH 2 M (NH4)2SO4 + 0.2 M NH4NO3 AND EQUILIBRATED AGAINST 2 M (NH4)2SO4 + 0.2 M NH4NO3, VAPOR DIFFUSION, SITTING DROP, temperature 294K