1A1F | pdb_00001a1f

DSNR (ZIF268 VARIANT) ZINC FINGER-DNA COMPLEX (GACC SITE)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1AAY	PDB ENTRY 1AAY, WITHOUT WATERS AND WITHOUT SIDE CHAINS FOR RESIDUES 18 - 24

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5		20% PEG 400, 200MM MGCL2, 100 MM HEPES PH 7.5, VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.17	43.29

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43	α = 90
b = 55.9	β = 90
c = 128.4	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	130	IMAGE PLATE	RIGAKU RAXIS IIC	YALE MIRRORS	1995-11-21	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 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	2.1	20	87	0.064	22.6	2.4		8185		-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)
	2.1	2.17	76		0.093	10.9	1.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	ISOMORPHOUS MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1AAY, WITHOUT WATERS AND WITHOUT SIDE CHAINS FOR RESIDUES 18 - 24	2.1	20	8173	893	87	0.225	0.225	0.27	BASED ON 1AAY TEST SET	36.4

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]
16.162			20.534		4.332

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	22.751
x_scangle_it	3.564
x_mcangle_it	2.251
x_scbond_it	1.888
x_angle_deg	1.3
x_improper_angle_d	1.226
x_mcbond_it	1.207
x_bond_d	0.006
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	698
Nucleic Acid Atoms	445
Solvent Atoms	88
Heterogen Atoms	3

Software

Software
Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing