3HTN

Crystal structure of a putative dna binding protein (bt_1116) from bacteroides thetaiotaomicron vpi-5482 at 1.50 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8	277	34.0000% polyethylene glycol 400, 0.2000M lithium sulfate, 0.1M TRIS pH 8.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.53	51.31

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 90.688	α = 90
b = 90.688	β = 90
c = 53.888	γ = 120

Symmetry
Space Group	P 32

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	MARMOSAIC 325 mm CCD	FLAT MIRROR (VERTICAL FOCUSING)	2009-02-18	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.91837,0.97908,0.97840	SSRL	BL11-1

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	1.5	29.683	97.1	0.048	10.56	3.77		79258		-3	16.81

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	1.5	1.55	95.2		0.552	1.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	1.5	29.68	79234	3974	99.8	0.145	0.143	0.167	RANDOM	21.75

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]
0.02	0.01		0.02		-0.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.897
r_dihedral_angle_4_deg	13.132
r_dihedral_angle_3_deg	9.688
r_dihedral_angle_1_deg	5.308
r_scangle_it	5.051
r_scbond_it	3.678
r_mcangle_it	2.354
r_mcbond_it	1.702
r_angle_refined_deg	1.584
r_angle_other_deg	1.134
r_mcbond_other	0.418
r_symmetry_vdw_other	0.24
r_symmetry_vdw_refined	0.211
r_nbd_refined	0.2
r_nbd_other	0.177
r_nbtor_refined	0.175
r_xyhbond_nbd_refined	0.17
r_symmetry_hbond_refined	0.164
r_metal_ion_refined	0.153
r_nbtor_other	0.088
r_chiral_restr	0.08
r_bond_refined_d	0.013
r_gen_planes_refined	0.007
r_bond_other_d	0.004
r_gen_planes_other	0.003
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3342
Nucleic Acid Atoms
Solvent Atoms	553
Heterogen Atoms	96

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
SHELXD	phasing
autoSHARP	phasing