2I5R

Structure of small Toprim domain-containing protein from B. stearothermophilus in complex with Mg2+

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5		100mM MES pH 6.5, 26% PEG3350, 18% glycerol, soaking in 25mM Magnesium Chloride, VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
1.86	33.85

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.667	α = 90
b = 73.031	β = 90
c = 114.922	γ = 90

Symmetry
Space Group	P 21 21 21

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			2006-02-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.979	APS	19-BM

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	1.65	50	99.4	0.048	27.7	6.5	38487	38256			19.2

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	1.65	1.71	96.6		0.379	2.3	4.3	3622

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	MOLECULAR REPLACEMENT	THROUGHOUT	1.65	25.9	36143	35991	1903	99.58	0.17322	0.17135	0.20799	RANDOM	21.241

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]
0.59			-0.58		-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.713
r_dihedral_angle_4_deg	14.972
r_dihedral_angle_3_deg	13.35
r_dihedral_angle_1_deg	4.9
r_scangle_it	2.731
r_scbond_it	1.829
r_angle_refined_deg	1.406
r_mcangle_it	1.044
r_mcbond_it	0.695
r_nbtor_refined	0.31
r_symmetry_vdw_refined	0.223
r_nbd_refined	0.202
r_chiral_restr	0.155
r_xyhbond_nbd_refined	0.141
r_symmetry_hbond_refined	0.121
r_bond_refined_d	0.012
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2813
Nucleic Acid Atoms
Solvent Atoms	211
Heterogen Atoms	60

Software

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