1JO2

Crystal Structure of the B-DNA Hexamer (CgATCG).Daunomycin Complex Containing a Ribose at the Intercalation Site

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	EVAPORATION	7	293	magnesium chloride, cacodylate, MPD, pH 7.00, EVAPORATION, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.77	55.55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 28.05	α = 90
b = 28.05	β = 90
c = 53.16	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	293	IMAGE PLATE	RIGAKU RAXIS IIC	MIRRORS	1996-06-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.54

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	1.5	10						2		14.6

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		THROUGHOUT	1.5	10	2	2778	2699	256	74.3	0.198	0.233	RANDOM	22.1

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]
0.12			0.12		-0.24

RMS Deviations
Key	Refinement Restraint Deviation
o_dihedral_angle_d	17.5
o_improper_angle_d	1.94
o_angle_deg	1.5
o_mcangle_it	0.69
o_mcbond_it	0.4
o_bond_d	0.014
o_bond_d_na
o_bond_d_prot
o_angle_d
o_angle_d_na
o_angle_d_prot
o_angle_deg_na
o_angle_deg_prot
o_dihedral_angle_d_na
o_dihedral_angle_d_prot
o_improper_angle_d_na
o_improper_angle_d_prot
o_scbond_it
o_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	121
Solvent Atoms	40
Heterogen Atoms	38

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
CNS	refinement