Experiment: 3Q61

3'-Fluoro Hexitol Nucleic Acid DNA Structure

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3EY2	PDB ENTRY 3EY2

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	291	20 mM sodium cacodylate, 6 mM sodium chloride, 40 mM potassium chloride, 6 mM spermine tetrahydrochloride, 5% v/v MPD, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.94

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 28.014	α = 90
b = 43.134	β = 90
c = 45.507	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	CCD	MARMOSAIC 225 mm CCD		2009-03-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.9787	APS	21-ID-F

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.56	31.31	99.56	0.086	40.5	6.1	7883	7849

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.56	1.62	100		0.24	11.3	7	791

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3EY2	1.56	31.31	7849	384	99.56	0.16608	0.16407	0.1645	0.20887	0.2058	RANDOM	17.373

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]
1.27			-0.63		-0.64

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	4.265
r_scbond_it	3.56
r_rigid_bond_restr	2.944
r_angle_refined_deg	2.117
r_chiral_restr	0.137
r_gen_planes_refined	0.028
r_bond_refined_d	0.02

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	408
Solvent Atoms	76
Heterogen Atoms

Software

Software
Software Name	Purpose
MD2	data collection
MOLREP	phasing
CCP4	model building
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
CCP4	phasing