5HY1

high resolution structure of barbiturase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	293	Protein at 16 mg/,mL in 50 mM ADA pH 6.5, 50 mM NaCl mixed with 2.45 M ammonium sulfate, 10% glycerol; 150 nL plus 150 nL

Crystal Properties
Matthews coefficient	Solvent content
1.99	38.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.403	α = 90
b = 82.356	β = 90
c = 114.552	γ = 90

Symmetry
Space Group	I 2 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	100	CCD	ADSC QUANTUM 315r		2014-03-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	AUSTRALIAN SYNCHROTRON BEAMLINE MX2	0.95370	Australian Synchrotron	MX2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.01	41.2	99.6	24.6	14.4		22146

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.01	2.06	95.2		3.5	13.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	5HWE	2.01	41.2	21081	1061	99.58	0.1876	0.1858	0.22273	RANDOM	28.651

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]
0.95			-0.77		-0.19

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.645
r_dihedral_angle_4_deg	16.657
r_dihedral_angle_3_deg	13.896
r_long_range_B_refined	6.307
r_long_range_B_other	6.274
r_dihedral_angle_1_deg	5.024
r_scangle_other	4.749
r_mcangle_it	3.639
r_mcangle_other	3.638
r_scbond_it	3.309
r_scbond_other	3.308
r_mcbond_other	2.713
r_mcbond_it	2.712
r_angle_refined_deg	1.196
r_angle_other_deg	0.96
r_chiral_restr	0.063
r_bond_refined_d	0.01
r_gen_planes_refined	0.005
r_bond_other_d	0.003
r_gen_planes_other	0.003
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2703
Nucleic Acid Atoms
Solvent Atoms	226
Heterogen Atoms	13

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing