4L0M

Crystal structure of a putative 5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase from Borrelia burgdorferi B31 bound to Adenine (Target NYSGRC-029268 )

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	298	Protein (20mM HEPES pH7.5, 150mM NaCl, 5% glycerol, and 5mM DTT); Reservoir (MCSG2 #27: 0.2 M Ammonium Acetate, 0.1 M HEPES:NaOH pH 7.5, 25% (w/v) PEG 3350 ); Cryoprotection (33% Ethylene glycol), Sitting Drop, Vapor Diffusion, temperature 298K, VAPOR DIFFUSION, SITTING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.38	48.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.083	α = 90
b = 48.083	β = 90
c = 241.838	γ = 90

Symmetry
Space Group	P 43 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	RAYONIX MX225HE	MIRRORS	2013-02-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.979310	APS	31-ID

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	1.7	37.63	99.9	0.1	28.3	27.9		32546			23

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	1.7	1.73	99.3		2.21	2.4	26.8	1656

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	SAD	THROUGHOUT	1.7	34.12	32426	1641	99.74	0.2286	0.2266	0.2669	RANDOM	36.0311

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]
1.81			1.81		-3.62

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.177
r_dihedral_angle_4_deg	27.643
r_dihedral_angle_3_deg	15.341
r_dihedral_angle_1_deg	6.607
r_angle_refined_deg	1.522
r_angle_other_deg	0.819
r_chiral_restr	0.098
r_bond_refined_d	0.012
r_gen_planes_refined	0.007
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.177
r_dihedral_angle_4_deg	27.643
r_dihedral_angle_3_deg	15.341
r_dihedral_angle_1_deg	6.607
r_angle_refined_deg	1.522
r_angle_other_deg	0.819
r_chiral_restr	0.098
r_bond_refined_d	0.012
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1872
Nucleic Acid Atoms
Solvent Atoms	114
Heterogen Atoms	10

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
CBASS	data collection
XDS	data reduction
Aimless	data scaling
SHELX	phasing
SHELXD	phasing
SHELXE	model building

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.