Experiment: 5ZT2

Crystal structure of CCG DNA repeats at 1.66 angstrom resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	277.15	50mM Sodium cacodylate, 1mM Magnesium chloride, 5% MPD, 2mM Cobalt(II) chloride, 1mM Chromomycin A3

Crystal Properties
Matthews coefficient	Solvent content
3.02	59.31

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.299	α = 90
b = 38.299	β = 90
c = 54.328	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	100	CCD	RAYONIX MX-300		2013-10-18	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSRRC BEAMLINE BL15A1	1.60572, 1.56518, 1.60490	NSRRC	BL15A1

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	1.66	30	96.1	0.048	41.724	5.5		3447			16.5972142739

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	1.66	1.72			0.272

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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)	Mean Isotropic B
X-RAY DIFFRACTION	MAD	FREE R-VALUE	1.66002164937	12.4437277752	0.00486031212139	3447	345	67.0883612301	0.235638826004	0.233436819255	0.2341	0.255296437209	0.257	26.7353127997

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
f_dihedral_angle_d	31.4914944287
f_angle_d	0.691642373619
f_chiral_restr	0.0299698512432
f_bond_d	0.00643641523394
f_plane_restr	0.00308292495498

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	218
Solvent Atoms	59
Heterogen Atoms	2

Software

Software
Software Name	Purpose
Coot	model building
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
SHELXS	phasing