4IUJ

Structure of Polymerase acid protein (PA) from Influenzavirus A Influenza A virus A, WILSON-SMITH/1933 (H1N1)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	290	Molecular Dimensions Morpheus screen g50: 10% PEG 8000, 20% ethylene glycol; 20mM of each Na-formate, Ammonium-acetate, Na3-citrate, NaK D/L tartrate, Na-oxamate; 100mM MOPS/HEPES pH 7.5; INVAN.07057.A.D15.PD909136 AT 20.45MG/ML, direct cryo, vapor diffusion, sitting drop, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
2.55	52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.8	α = 90
b = 68.8	β = 90
c = 395.65	γ = 120

Symmetry
Space Group	P 65 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	CCD	MARMOSAIC 225 mm CCD		2012-12-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.97872	APS	21-ID-F

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	1.9	50	99	0.072	19.09	8.9	45568	45117		-3	35.36

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	1.9	1.95	100		0.52	4.54

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2znl	1.9	47.6	45568	45103	2279	99.36	0.1751	0.1751	0.1737	0.2014	RANDOM	37.196

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]
0.05	0.05		0.05		-0.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.517
r_dihedral_angle_4_deg	15.644
r_dihedral_angle_3_deg	12.199
r_dihedral_angle_1_deg	6.035
r_mcangle_it	2.164
r_mcbond_it	1.374
r_mcbond_other	1.373
r_angle_refined_deg	1.334
r_angle_other_deg	0.763
r_chiral_restr	0.075

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.517
r_dihedral_angle_4_deg	15.644
r_dihedral_angle_3_deg	12.199
r_dihedral_angle_1_deg	6.035
r_mcangle_it	2.164
r_mcbond_it	1.374
r_mcbond_other	1.373
r_angle_refined_deg	1.334
r_angle_other_deg	0.763
r_chiral_restr	0.075
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3195
Nucleic Acid Atoms
Solvent Atoms	255
Heterogen Atoms

Software

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

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.