Experiment: 1VZK

A Thiophene Based Diamidine Forms a "Super" AT Binding Minor Groove Agent

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2DBE	DNA PART OF NDB ENTRY GDL009 OR PDB ENTRY 2DBE

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7		MGCL2, DNA, COMPOUND DB818, MPD, SPERMINE, SODIUM CACODYLATE BUFFER., pH 7.00

Crystal Properties
Matthews coefficient	Solvent content
2.8	56.05

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 25.677	α = 90
b = 39.921	β = 90
c = 65.185	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	103	IMAGE PLATE	RIGAKU RAXIS IV	OSMIC FOCUSSING MIRRORS	2003-04-28	M	SINGLE WAVELENGTH

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

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	1.77	17	95.2	0.043	70.18	6.58		6667		1

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	1.77	1.83	92.5		0.135	13.16

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	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	FREE R-VALUE	DNA PART OF NDB ENTRY GDL009 OR PDB ENTRY 2DBE	1.77	8	2	5894	662	85.8	0.2226	0.2273		0.2287	0.2953	0.2347	RANDOM

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
		573

RMS Deviations
Key	Refinement Restraint Deviation
s_similar_adp_cmpnt	0.04
s_angle_d	0.028
s_bond_d	0.008
s_non_zero_chiral_vol	0.006
s_anti_bump_dis_restr	0.004
s_from_restr_planes	0.0015
s_similar_dist
s_zero_chiral_vol
s_rigid_bond_adp_cmpnt
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	486
Solvent Atoms	60
Heterogen Atoms	27

Software

Software
Software Name	Purpose
SHELXL-97	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing