5HWE

high resolution structure of barbiturase

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4BVQ

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; reservoir of 2.45 M ammonium sulfate, 10% glycerol

Crystal Properties
Matthews coefficient	Solvent content
2.13	42.15

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.341	α = 90
b = 82.563	β = 90
c = 114.3	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		2014-03-21	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	1.707	41.5	99.7	13.2	7.2		36498

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	1.707	1.74	93.8		2.3	6.4

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	4BVQ	1.71	41.5	34725	1762	99.84	0.15289	0.15078	0.19447	RANDOM	19.557

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]
-0.27			-0.05		0.32

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.552
r_dihedral_angle_4_deg	20.482
r_dihedral_angle_3_deg	13.224
r_long_range_B_other	6.051
r_long_range_B_refined	6.05
r_dihedral_angle_1_deg	5.647
r_scangle_other	5.275
r_scbond_other	3.688
r_scbond_it	3.686
r_mcangle_other	3.155
r_mcangle_it	3.154
r_mcbond_it	2.359
r_mcbond_other	2.355
r_angle_refined_deg	1.912
r_angle_other_deg	1.106
r_chiral_restr	0.125
r_bond_refined_d	0.019
r_gen_planes_refined	0.01
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	2742
Nucleic Acid Atoms
Solvent Atoms	295
Heterogen Atoms	19

Software

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