7Z4O

Influenza A/H7N9 polymerase core dimer with Pol II pSer5 CTD peptide mimic bound in site 2A

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	277	0.1 M Tris pH 7.0, 13 % PEG 8K, 0.2 M MgCl2, 0.1 M guanidine hydrochloride

Crystal Properties
Matthews coefficient	Solvent content
2.71	54.65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.474	α = 90
b = 144.131	β = 90
c = 336.197	γ = 90

Symmetry
Space Group	P 21 21 21

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		2016-07-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	0.97625	ESRF	ID29

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	3.41	49.211	73.3	0.283	0.306	0.995	7.7	14.1		37875

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.41	3.57			1.873	1.946	0.696	1.5

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	6TU5	3.412	49.211	37875	1852	73.225	0.223	0.2201	0.2728	86.143

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]
-0.404			1.569		-1.166

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.57
r_dihedral_angle_3_deg	16.81
r_dihedral_angle_4_deg	14.756
r_lrange_it	7.81
r_lrange_other	7.81
r_dihedral_angle_1_deg	5.498
r_mcangle_it	4.88
r_mcangle_other	4.88
r_scangle_it	4.123
r_scangle_other	4.123
r_mcbond_it	2.811
r_mcbond_other	2.81
r_scbond_it	2.273
r_scbond_other	2.273
r_angle_refined_deg	1.207
r_angle_other_deg	1.041
r_ext_dist_refined_d	0.201
r_nbd_refined	0.182
r_symmetry_nbd_other	0.164
r_xyhbond_nbd_refined	0.161
r_nbtor_refined	0.156
r_nbd_other	0.155
r_symmetry_nbtor_other	0.074
r_ncsr_local_group_1	0.065
r_ncsr_local_group_3	0.05
r_chiral_restr	0.047
r_ncsr_local_group_2	0.046
r_symmetry_nbd_refined	0.037
r_ncsr_local_group_4	0.007
r_bond_refined_d	0.003
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	19381
Nucleic Acid Atoms	524
Solvent Atoms
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
autoPROC	data reduction
autoPROC	data scaling
PHASER	phasing