6EVK

Crystal structure of bat influenza A/H17N10 polymerase with viral RNA promoter and cap analogue m7GTP

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	281	Bat influenza polymerase protein in 50 mM HEPES-NaOH, 500 mM NaCl, 5 % glycerol, 2 mM TCEP, pH = 7.5 was adjusted to a concentration of 10 mg per ml, mixed in a 1:1 ratio with vRNA, which was an equimolar mixture of nucleotides 1-16 from the 5 prime end and nucleotides 1-18 or 3-18 from the 3 prime end. Protein-RNA with the addition of 5 mM m7GTP was mixed with mother liquor containing 0.7-1.5 M sodium-potassium phosphate at pH 5.0

Crystal Properties
Matthews coefficient	Solvent content
3.19	61.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 269.34	α = 90
b = 148.7	β = 98.17
c = 88.51	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 PILATUS 6M-F		2014-09-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.979	ESRF	ID23-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Rrim I (All)	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	2.9	50	99.6	0.102	0.115	0.998	10.75	4.63		76144

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.9	2.98	99.8		1.22	1.38	0.597	1.08	4.65

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	4WSB	2.9	50	72389	3755	99.58	0.23592	0.23399	0.27294	RANDOM	115.697

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]
2.15		5.88	-1.05		-2.68

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.778
r_dihedral_angle_3_deg	15.486
r_dihedral_angle_4_deg	12.907
r_long_range_B_refined	10.233
r_long_range_B_other	10.226
r_mcangle_it	6.322
r_mcangle_other	6.322
r_dihedral_angle_1_deg	6.151
r_scangle_other	5.847
r_mcbond_it	3.789
r_mcbond_other	3.786
r_scbond_it	3.36
r_scbond_other	3.339
r_angle_refined_deg	1.139
r_angle_other_deg	0.906
r_chiral_restr	0.063
r_bond_refined_d	0.008
r_gen_planes_refined	0.004
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	17434
Nucleic Acid Atoms	600
Solvent Atoms	38
Heterogen Atoms	94

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing