1ZPI

Crystal structure analysis of the minor groove binding quinolinium quaternary salt SN 8224 complexed with CGCGAATTCGCG

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7	285	cacodylate, spermine, magnesium chloride, MPD, pH 7.0, VAPOR DIFFUSION, temperature 285K

Crystal Properties
Matthews coefficient	Solvent content
2.17	43.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 25.188	α = 90
b = 39.868	β = 90
c = 65.961	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	110	IMAGE PLATE	MARRESEARCH	mirror	2004-04-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

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	1.6	50	98.2	0.0433	0.054	22.5	4.5		9114			22.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.6	1.66	94.3		0.389	2.5	3.6	841

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	refinement	THROUGHOUT	BD0007	1.6	34.1	9114	8331	747	98.27	0.225	0.225	0.22217	0.25832	RANDOM	26.529

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]
2.95			-1.41		-1.54

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	7.002
r_scbond_it	5.923
r_angle_refined_deg	1.693
r_angle_other_deg	1.353
r_nbtor_refined	0.256
r_nbd_other	0.232
r_nbd_refined	0.181
r_symmetry_vdw_other	0.17
r_symmetry_hbond_refined	0.159
r_xyhbond_nbd_refined	0.154
r_chiral_restr	0.093
r_nbtor_other	0.093
r_symmetry_vdw_refined	0.07
r_metal_ion_refined	0.046
r_bond_refined_d	0.017
r_gen_planes_refined	0.017
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_dihedral_angle_1_deg
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_it
r_mcbond_other
r_mcangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	522
Solvent Atoms	76
Heterogen Atoms	38

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling