ISDA

X-RAY DIFFRACTION

Crystallization Details

Method	pH	Temprature	Details
X-RAY DIFFRACTION	?	293	The crystal of the r(UCGUGCGA)2 duplex was obtained in the presence of its complementary strand UCGCACGA. The crystals grew in the 12th condition of nucleic acid mini-screen from Hampton (10% MPD, 0.040 M Sodium cacodylate trihydrate pH 6.0, 0.012 M Spermine tetrahydrochloride, 0.08M M Potassium chloride, 0.02M M Barium chloride) and further cryoprotected by 35% of MPD.

Unit Cell:

a: 44.003 Å b: 44.003 Å c: 122.312 Å α: 90.000° β: 90.000° γ: 120.000°

Symmetry:

Space Group: H 3 2

Crystal Properties:

Matthew's Coefficient: 2.24 Solvent Content: 45.11

Refinement Statistics

Diffraction ID	Structure Solution Method	Cross Validation Method	Resolution Limit (High)	Resolution Limit (Low)	Number of Reflections (Observed)	Number of Reflections (R-free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.212	36.383	2459	123	99.434	?	0.2857	70

Data Collection

Overall

Resolution Limit (High)	Resolution Limit (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	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
2.21	80	99.5	0.04	?	17.3	5.7	?	2460	?	?	?

Highest Resolution Shell

#	Resolution Limits (Low)	Resolution Limits (High)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.21	2.35	?	?	?	1.9	?	?

Diffraction

Diffraction experiment

Crystal ID	Scattering Type	Data Collection Temprature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1		100 K			?

Radiation Source

Source	Type	Wavelength List	Synchrotron Site	Beamline
SYNCHROTRON	APS BEAMLINE 22-BM	1.000	APS	22-BM

Software