1D54

ANTHRACYCLINE BINDING TO DNA: HIGH RESOLUTION STRUCTURE OF D(TGTACA) COMPLEXED WITH 4'-EPIADRIAMYCIN

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5	277	pH 6.50, VAPOR DIFFUSION, temperature 277.00K

Crystal Properties
Matthews coefficient	Solvent content
2.87	57.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 28.02	α = 90
b = 28.02	β = 90
c = 52.93	γ = 90

Symmetry
Space Group	P 41 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	297	DIFFRACTOMETER	RIGAKU AFC-5

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU

Data Collection

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		1.4	7	3	2381			0.17

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
n_phos_bond_angle_d	0.036
n_sugar_bond_angle_d	0.033
n_phos_bond_d	0.02
n_sugar_bond_d	0.014
n_bond_d
n_angle_d
n_planar_d
n_hb_or_metal_coord
n_sugar_bond_it
n_sugar_angle_it
n_phos_bond_it
n_phos_angle_it
n_bond_angle_restr
n_dihedral_angle_restr
n_impr_tor
n_plane_restr
n_chiral_restr
n_singtor_nbd
n_multtor_nbd
n_xhyhbond_nbd

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	120
Solvent Atoms	33
Heterogen Atoms	39

Software

Software
Software Name	Purpose
NUCLSQ	refinement