6E6X

The N-terminal domain of PA endonuclease from the influenza H1N1 virus in complex with 1-(4-(1H-tetrazol-5-yl)phenyl)-5-hydroxy-2-methylpyridin-4(1H)-one

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.8	306	30% PEG4000, 100 mM Tris, pH 8.35, 200-220 mM sodium acetate

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.34	α = 90
b = 75.34	β = 90
c = 120.61	γ = 120

Symmetry
Space Group	P 62 2 2

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 PILATUS3 6M		2017-12-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.2	1.00	ALS	5.0.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	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	2.5	44.29	100	0.095	0.1	0.032	19.2	17.5		7520

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.5	2.6	100		0.463	0.487	0.15	5.7	19.4

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	PDB entry 4AWM	2.5	44.29	6950	507	99.49	0.21045	0.2065	0.26493	RANDOM	48.708

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]
-0.29	-0.14		-0.29		0.93

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.358
r_dihedral_angle_4_deg	22.152
r_dihedral_angle_3_deg	16.371
r_long_range_B_refined	9.211
r_long_range_B_other	9.208
r_scangle_other	7.25
r_dihedral_angle_1_deg	6.113
r_mcangle_it	4.928
r_mcangle_other	4.925
r_scbond_it	4.616
r_scbond_other	4.613
r_mcbond_other	3.316
r_mcbond_it	3.314
r_angle_refined_deg	1.589
r_angle_other_deg	1.059
r_chiral_restr	0.092
r_bond_refined_d	0.016
r_gen_planes_refined	0.007
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	1459
Nucleic Acid Atoms
Solvent Atoms	13
Heterogen Atoms	26

Software

Software
Software Name	Purpose
REFMAC	refinement
iMOSFLM	data reduction
Aimless	data scaling
PHASER	phasing