3FL6

Influence of the incorporation of a cyclohexenyl nucleic acid (CeNA) residue onto the sequence d(GCGTGCG)/d(CGCACGC)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.5	289	10%(v/v) 2-methyl-2,4-pentanediol (MPD), 20mM cobalt hexamine, 40mM potassium cacodylate buffered at pH=5.5, and 80/12mM KCl/NaCl, vapor diffusion, hanging drop, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.06	40.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 25.72	α = 90
b = 33.57	β = 90
c = 81.2	γ = 90

Symmetry
Space Group	P 21 21 21

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	PSI PILATUS 6M		2008-04-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA		SLS	X06SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (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	1.17	19.86	99.6	0.094	0.094	3.735	5.5		24411			6.3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.17	1.23	98.8		0.52	0.52	1.3	5.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	FREE R	1.17	19.86	4	24372	20137	1221	99.5	0.159	0.145			RANDOM	10.739

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]

RMS Deviations
Key	Refinement Restraint Deviation
s_anti_bump_dis_restr	21
s_angle_d	0.036
s_approx_iso_adps	0.03
s_bond_d	0.009
s_from_restr_planes	0.003
s_similar_dist	0.002
s_zero_chiral_vol
s_non_zero_chiral_vol
s_rigid_bond_adp_cmpnt
s_similar_adp_cmpnt

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	564
Solvent Atoms	130
Heterogen Atoms	45

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
SHELX	phasing
SHELX	model building
SHELX	refinement
PDB_EXTRACT	data extraction
SHELXD	phasing
SHELXL-97	refinement

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.