ISDA

X-RAY DIFFRACTION

Crystallization Details

Method	pH	Temprature	Details
X-RAY DIFFRACTION	7.0	293	Racemic DNA mixture, sodium cacodylate, sodium chloride, potassium chloride, spermine tetrahydrochloride, MPD For crystallization, four strands were used i.e. (1) d(CGCTATAATGCG) with L-sugars; (2) d(CGCATTATAGCG) with L-sugars; (3) d(CGCTATAATGCG) with D-sugars and (4) d(CGCATTATAGCG) with D-sugars. Enantio-pure DNA solutions were prepared between the non-self complementary strands. Enantiopure DNA solutions were mixed in equimolar ratio and this racemic mixture was used for crystallization.

Unit Cell:

a: 45.118 Å b: 67.115 Å c: 47.860 Å α: 90.00° β: 109.22° γ: 90.00°

Symmetry:

Space Group: P 1 21/c 1

Crystal Properties:

Matthew's Coefficient: 2.35 Solvent Content: 65

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	1.694	42.60	29228	1431	99.14	0.3012	0.3496	?

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
1.69	42.60	99.30	0.05	?	13.64	6.56	?	29346	?	?	?

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	1.69	1.75	97.10	?	?	3.02	6.42	?

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	SOLEIL BEAMLINE PROXIMA 1	0.9785	SOLEIL	PROXIMA 1

Software