6DCY

The N-terminal domain of PA endonuclease from the influenza H1N1 virus in complex with 5-hydroxy-2-methyl-4-oxo-4H-pyran-3-carboxylic acid

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4AWM	PDB entry 4AWM

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	306	0.5 mM inhibitor, 25-40% PEG4000, 100 mM Tris, pH 8.35, 200-220 mM sodium acetate

Crystal Properties
Matthews coefficient	Solvent content
2.21	44.24

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.54	α = 90
b = 75.54	β = 90
c = 120.36	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)	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	2.08	37.77	100	0.083	19.1	16.9		12849

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	2.08	2.14	100		0.786	3.4	18.1

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 4AWM	2.08	37.77	12045	611	98.74	0.22714	0.22468	0.2714	RANDOM	44.595

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]
-0.43	-0.22		-0.43		1.41

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.458
r_dihedral_angle_4_deg	23.931
r_dihedral_angle_3_deg	18.928
r_long_range_B_refined	8.56
r_long_range_B_other	8.557
r_scangle_other	6.799
r_dihedral_angle_1_deg	6.144
r_mcangle_it	4.936
r_mcangle_other	4.934
r_scbond_it	4.726
r_scbond_other	4.724
r_mcbond_it	3.491
r_mcbond_other	3.485
r_angle_refined_deg	1.425
r_angle_other_deg	0.961
r_chiral_restr	0.07
r_bond_refined_d	0.01
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	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	1468
Nucleic Acid Atoms
Solvent Atoms	11
Heterogen Atoms	14

Software

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