1XF2

Structure of Fab DNA-1 complexed with dT3

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	298	ammonium sulfate, sodium phosphate, sodium citrate, pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
3.2	60

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 170.678	α = 90
b = 170.678	β = 90
c = 144.667	γ = 120

Symmetry
Space Group	P 65 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	173	CCD	BRANDEIS - B4		2002-10-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X12C	1.0	NSLS	X12C

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	2.3	29.5	99.9	0.07	0.07	31	10.3	55433	55433

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.38	99.7		0.446	0.446	4.7

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 1I8M	2.3	29.5	55433	55433	2752	99.82	0.20354	0.20354	0.20157	0.24194	RANDOM	17.429

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]
0.84	0.42		0.84		-1.26

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.736
r_scangle_it	2.846
r_scbond_it	1.797
r_angle_refined_deg	1.402
r_mcangle_it	1.175
r_angle_other_deg	0.829
r_mcbond_it	0.602
r_symmetry_vdw_other	0.298
r_nbd_other	0.248
r_nbd_refined	0.18
r_symmetry_vdw_refined	0.176
r_symmetry_hbond_refined	0.16
r_xyhbond_nbd_refined	0.144
r_nbtor_other	0.128
r_chiral_restr	0.083
r_bond_refined_d	0.013
r_gen_planes_refined	0.005
r_gen_planes_other	0.004
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6449
Nucleic Acid Atoms	41
Solvent Atoms	220
Heterogen Atoms	10

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
CNS	phasing