4S1X

Crystal structure of HA2-Del-L2seM, Central Coiled-Coil from Influenza Hemagglutinin HA2 without Heptad Repeat Stutter

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	298	10% PEG 4000, 5% 2-propanol, 0.1 M HEPES:NaOH, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.07	40.67

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 34.45	α = 90
b = 98.523	β = 89.96
c = 34.553	γ = 90

Symmetry
Space Group	P 1 21 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	CCD	RAYONIX MX-225		2013-06-19		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.9791	APS	31-ID

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	99.6	0.077	14.3	5		18167

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	1.93	99.9		0.741		5.2	937

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	SAD	THROUGHOUT	1.9	28.29	18235	18235	871	98.69	0.2095	0.2078	0.2455	RANDOM	41.059

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]
27.5		25.47	-46.54		19.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.447
r_dihedral_angle_4_deg	24.416
r_dihedral_angle_3_deg	17.983
r_dihedral_angle_1_deg	4.773
r_scbond_it	3.316
r_mcangle_it	2.886
r_mcbond_it	1.957
r_angle_refined_deg	1.147
r_chiral_restr	0.08
r_bond_refined_d	0.008

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.447
r_dihedral_angle_4_deg	24.416
r_dihedral_angle_3_deg	17.983
r_dihedral_angle_1_deg	4.773
r_scbond_it	3.316
r_mcangle_it	2.886
r_mcbond_it	1.957
r_angle_refined_deg	1.147
r_chiral_restr	0.08
r_bond_refined_d	0.008
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1648
Nucleic Acid Atoms
Solvent Atoms	54
Heterogen Atoms	6

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
PHENIX	phasing

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.