1VT5

THE CRYSTAL STRUCTURE OF D(CCCCGGGG): A NEW A-FORM VARIANT WITH AN EXTENDED BACKBONE CONFORMATION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7		MPD, Sodium Cacodylate, spermine, MgCl2, pH 7.00

Crystal Properties
Matthews coefficient	Solvent content
2.4	48.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.36	α = 90
b = 43.36	β = 90
c = 24.83	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	288	DIFFRACTOMETER	NICOLET P3			M	SINGLE WAVELENGTH
2	1	x-ray		AREA DETECTOR	SIEMENS-NICOLET			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SEALED TUBE
2	ROTATING ANODE

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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
1,2	2.25

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		2.25	8	1018			0.24	0.24

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	161
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
CORELS	refinement