4FUU

Crystal structure of a leucine aminopeptidase precursor (BT_2548) from Bacteroides thetaiotaomicron VPI-5482 at 1.30 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		277	20.00% polyethylene glycol 3350, 0.200M ammonium dihydrogen phosphate, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.08	40.99

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40.236	α = 65.47
b = 41.582	β = 80.43
c = 48.528	γ = 78.68

Symmetry
Space Group	P 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	CCD	ADSC QUANTUM 315	KOHZU: Double Crystal Si(111)	2011-10-16	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	0.9537,0.9796,0.9793	ALS	8.2.2

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	1.3	27.993	93.6	0.055	7.1	1.9	64313	64313			12.234

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	1.3	1.33	91.3		0.435	0.435	1.9	1.9	4638

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	MAD	THROUGHOUT	1.3	27.993	64273	3265	93.53	0.12	0.1181	0.1566	RANDOM	17.9771

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]
-0.17	-0.14	0.01	-0.06	0.6	-0.22

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.544
r_dihedral_angle_4_deg	21.435
r_sphericity_free	12.521
r_dihedral_angle_3_deg	11.458
r_scangle_it	6.63
r_dihedral_angle_1_deg	5.811
r_sphericity_bonded	5.551
r_scbond_it	4.76
r_mcangle_it	3.525
r_mcbond_it	2.485
r_rigid_bond_restr	1.709
r_angle_refined_deg	1.356
r_mcbond_other	1.282
r_angle_other_deg	0.898
r_chiral_restr	0.087
r_bond_refined_d	0.013
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	2259
Nucleic Acid Atoms
Solvent Atoms	329
Heterogen Atoms	22

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