3IJ3

1.8 Angstrom Resolution Crystal Structure of Cytosol Aminopeptidase from Coxiella burnetii

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	295	Protein solution at 7.0 mg/mL, 0.5M Sodium cloride, Screen solution JCSG+D7, 0.2M Lithium sulfate, 0.1M Tris, 40% v/v PEG 400, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.67	53.96

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 112.803	α = 90
b = 112.803	β = 90
c = 78.089	γ = 120

Symmetry
Space Group	P 3 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	CCD	MARMOSAIC 300 mm CCD	Beryllium lenses	2009-07-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-G	0.97856	APS	21-ID-G

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	1.8	30	99.9	0.087	24.3	8.9	53424	53424		-3	24.2

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	1.8	1.83	100		0.53	4.6	8.5	2656

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1LAM	1.8	28.21	50601	50601	2711	99.91	0.14855	0.14855	0.14705	0.17685	RANDOM	15.878

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]
-0.14	-0.07		-0.14		0.21

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.037
r_dihedral_angle_4_deg	11.657
r_dihedral_angle_3_deg	9.843
r_scangle_it	4.75
r_dihedral_angle_1_deg	3.52
r_scbond_it	2.949
r_mcangle_it	1.958
r_angle_refined_deg	1.508
r_mcbond_it	1.11
r_angle_other_deg	0.902
r_mcbond_other	0.34
r_chiral_restr	0.105
r_bond_refined_d	0.013
r_gen_planes_refined	0.006
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3581
Nucleic Acid Atoms
Solvent Atoms	407
Heterogen Atoms	105

Software

Software
Software Name	Purpose
Blu-Ice	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling