6Z3O

The E74Q mutant of Small Alarmone Hydrolase SAH from Pseudomonas aeruginosa PAO1

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	14.6 mg/mL of PaSpo2 E74Q variant protein stock in the buffer of 25 mM Tris pH 8.0, 200 mM NaCl, 10 mM ppGpp and 10 mM MnCl2 is mixed 1:1 ratio with the precipitant consisted of 4.0 M NH4OAc, 0.1 M Bis-Tris propane, pH 7.0

Crystal Properties
Matthews coefficient	Solvent content
2.41	48.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.15	α = 90
b = 86.05	β = 101.77
c = 122.58	γ = 90

Symmetry
Space Group	C 1 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 EIGER2 XE 16M		2019-12-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04	0.9795	Diamond	I04

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	CC (Half)	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	1.74	57.28	89.6	0.994	7.3	3.8		89102

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.74	1.77	99.9		0.422	1

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	6Z3N	1.74	43.062	89102	4527	99.254	0.156	0.1518	0.2274	29.11

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]
1.702		-0.033	2.318		-3.686

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.733
r_dihedral_angle_4_deg	18.113
r_dihedral_angle_3_deg	13.121
r_scangle_it	7.1
r_scangle_other	7.099
r_lrange_it	6.953
r_lrange_other	6.872
r_scbond_it	6.388
r_scbond_other	6.385
r_dihedral_angle_1_deg	6.038
r_mcangle_it	5.318
r_mcangle_other	5.317
r_rigid_bond_restr	4.984
r_mcbond_it	4.532
r_mcbond_other	4.532
r_angle_refined_deg	1.766
r_angle_other_deg	1.507
r_nbd_refined	0.223
r_symmetry_xyhbond_nbd_refined	0.202
r_nbd_other	0.191
r_symmetry_nbd_other	0.182
r_xyhbond_nbd_refined	0.175
r_nbtor_refined	0.164
r_symmetry_nbd_refined	0.146
r_symmetry_xyhbond_nbd_other	0.113
r_chiral_restr	0.087
r_symmetry_nbtor_other	0.083
r_bond_refined_d	0.012
r_gen_planes_refined	0.009
r_bond_other_d	0.003
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5638
Nucleic Acid Atoms
Solvent Atoms	526
Heterogen Atoms	4

Software

Software
Software Name	Purpose
REFMAC	refinement
xia2	data reduction
Aimless	data scaling
MOLREP	phasing