4GHN

Crystal structure of a putative protease (BACUNI_00178) from Bacteroides uniformis ATCC 8492 at 1.50 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.6	277	30.00% Glycerol, 5.60% polyethylene glycol 4000, 0.1M sodium acetate pH 4.6, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.2	61.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 102.077	α = 90
b = 102.077	β = 90
c = 97.266	γ = 120

Symmetry
Space Group	P 31 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 6M	Rhodium-coated vertical and horizontal focusing mirrors; liquid-nitrogen cooled double crystal Si(111) monochromator	2012-07-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL12-2		SSRL	BL12-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	17.932	97.9	0.112	6.2	3.6	91727	91727			15.714

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.5	1.54	98.9		0.529	0.529	1.4	3.3	6768

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	1.5	17.932	91641	4597	97.82	0.1359	0.1341	0.1707	RANDOM	21.854

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]
0.23	0.11		0.23		-0.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.995
r_dihedral_angle_4_deg	15.802
r_dihedral_angle_3_deg	11.014
r_sphericity_free	7.823
r_scangle_it	6.575
r_dihedral_angle_1_deg	5.931
r_scbond_it	4.698
r_sphericity_bonded	4.539
r_mcangle_it	3.572
r_mcbond_it	2.587
r_rigid_bond_restr	1.969
r_mcbond_other	1.751
r_angle_refined_deg	1.47
r_angle_other_deg	0.96
r_chiral_restr	0.101
r_bond_refined_d	0.015
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	3118
Nucleic Acid Atoms
Solvent Atoms	554
Heterogen Atoms	12

Software

Software
Software Name	Purpose
MolProbity	model building
PDB_EXTRACT	data extraction
SHELX	phasing
SHARP	phasing
SCALA	data scaling
REFMAC	refinement
MOSFLM	data reduction
SHELXD	phasing