1P47

Crystal Structure of tandem Zif268 molecules complexed to DNA

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	298	bis-tris propane-HCl, sodium chloride, zinc cloride, ammonium acetate, PEG 400, pH 8, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
4.21	70.56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.629	α = 90
b = 70.629	β = 90
c = 99.608	γ = 120

Symmetry
Space Group	P 31

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	120	CCD	ADSC QUANTUM 4		2002-01-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	0.9	APS	14-BM-C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.2	100	90.4	0.047	27.9	4.4	25748	24823	-2	-2

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)
	2.2	2.28	43		0.405		2.12	1243

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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1AAY	2.2	60.86	22393	22393	2429	90.4	0.2192	0.2192	0.21394	0.26743	RANDOM	62.044

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]
-0.05	-0.03		-0.05		0.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	9.907
r_scangle_it	7.14
r_scbond_it	5.245
r_angle_refined_deg	4.433
r_mcangle_it	3.239
r_mcbond_it	1.883
r_angle_other_deg	1.616
r_nbd_other	0.296
r_symmetry_vdw_other	0.245
r_nbd_refined	0.244
r_xyhbond_nbd_refined	0.241
r_chiral_restr	0.215
r_symmetry_vdw_refined	0.16
r_nbtor_other	0.118
r_symmetry_hbond_refined	0.105
r_bond_refined_d	0.045
r_gen_planes_refined	0.021
r_gen_planes_other	0.013
r_bond_other_d	0.003
r_dihedral_angle_2_deg
r_xyhbond_nbd_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1431
Nucleic Acid Atoms	896
Solvent Atoms	100
Heterogen Atoms	6

Software

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