2I05 | pdb_00002i05

Escherichia Coli Replication Terminator Protein (Tus) Complexed With TerA DNA

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2EWJ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	12.5% PEG 3350, 50mM Bis-Tris pH6.5, 200mM NaI, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.76	55.44

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.373	α = 90
b = 63.373	β = 90
c = 252.652	γ = 90

Symmetry
Space Group	P 41 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 315	Rosenbaum-Rock monochromator, high-resolution double-crystal sagittal focusing, double crystal, Rosenbaum-Rock vertical focusing mirror	2006-03-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97929	APS	19-ID

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	2.6	50	82	0.088	0.088	28.36	5.2		13969	-2	-2	56.028

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	2.6	2.69	25.5		0.259	0.259	3.1	2.2	421

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 (Observed)	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	THROUGHOUT	2EWJ	2.6	50	-2	13161	13161	690	82.54	0.23029	0.23029	0.22624	0.22	0.3124	0.31	RANDOM	53.288

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]
2.46			2.46		-4.93

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.34
r_dihedral_angle_3_deg	23.894
r_dihedral_angle_4_deg	18.259
r_dihedral_angle_1_deg	7.816
r_scangle_it	3.244
r_angle_refined_deg	2.145
r_scbond_it	1.977
r_mcangle_it	1.574
r_mcbond_it	0.867
r_nbtor_refined	0.329
r_nbd_refined	0.263
r_symmetry_vdw_refined	0.254
r_symmetry_hbond_refined	0.252
r_xyhbond_nbd_refined	0.172
r_chiral_restr	0.117
r_bond_refined_d	0.018
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_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	2495
Nucleic Acid Atoms	608
Solvent Atoms	10
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
HKL-2000	data reduction
HKL-2000	data scaling