4ZWM

2.3 A resolution crystal structure of the ornithine aminotransferase from Toxoplasma gondii ME49

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	293	0.2 M AmmSO4, 0.1 M Bis-Tris, 25% PEG3350

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.418	α = 100.7
b = 60.804	β = 92.63
c = 63.379	γ = 107.68

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	MARMOSAIC 300 mm CCD		2015-03-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	0.9788	APS	21-ID-D

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	2.3	30	96.9	0.07	15.7	2	33287	33287

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	2.3	2.34	97.2		0.49	2.2	1.9

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	4NOG	2.31	30	31691	1595	96.27	0.1899	0.18639	0.25848	RANDOM	33.965

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]
0.8	-1.02	-0.77	0.16	-1.28	0.48

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.704
r_dihedral_angle_4_deg	17.032
r_dihedral_angle_3_deg	15.212
r_dihedral_angle_1_deg	6.669
r_long_range_B_refined	3.253
r_long_range_B_other	3.193
r_angle_refined_deg	1.561
r_scangle_other	1.518
r_mcangle_it	1.406
r_mcangle_other	1.406
r_scbond_it	1.255
r_angle_other_deg	0.98
r_scbond_other	0.898
r_mcbond_it	0.821
r_mcbond_other	0.82
r_chiral_restr	0.084
r_bond_refined_d	0.012
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.002
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	6546
Nucleic Acid Atoms
Solvent Atoms	171
Heterogen Atoms	90

Software

Software
Software Name	Purpose
BLU-MAX	data collection
HKL-2000	data scaling
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction