5US8

2.15 Angstrom Resolution Crystal Structure of Argininosuccinate Synthase from Bordetella pertussis

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	295	Protein: 10.6 mg/ml, 0.01M Tris HCl (pH 8.3), ATP, Mg; Screen: Classics II (G8), 0.2M Ammonium acetate, 0.1 HEPES (pH 7.5), 25% (w/v) PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.41	49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 94.453	α = 90
b = 94.453	β = 90
c = 188.49	γ = 120

Symmetry
Space Group	P 64

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	C(111)	2017-02-02	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)	R Sym I (Observed)	Rpim I (All)	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	2.15	30	99.9	0.077	0.077	0.031	23.3	7.3		51703		-3	44.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.15	2.19	100		0.759	0.759	0.298	0.79	2.7	7.3

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	1K92	2.15	29.46	49016	2519	99.91	0.15812	0.15605	0.20032	RANDOM	52.267

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]
-0.08	-0.04		-0.08		0.27

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.162
r_dihedral_angle_4_deg	17.78
r_dihedral_angle_3_deg	10.281
r_long_range_B_refined	6.283
r_long_range_B_other	6.219
r_scangle_other	3.512
r_mcangle_other	2.96
r_mcangle_it	2.959
r_dihedral_angle_1_deg	2.854
r_scbond_it	2.28
r_scbond_other	2.28
r_mcbond_it	1.913
r_mcbond_other	1.912
r_angle_refined_deg	1.381
r_angle_other_deg	0.893
r_chiral_restr	0.085
r_gen_planes_refined	0.023
r_gen_planes_other	0.019
r_bond_refined_d	0.009
r_bond_other_d	0.001
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	6934
Nucleic Acid Atoms
Solvent Atoms	522
Heterogen Atoms	79

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
MOLREP	phasing