5CQE

2.1 Angstrom resolution crystal structure of matrix protein 1 (M1; residues 1-164) from Influenza A virus (A/Puerto Rico/8/34(H1N1))

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1EA3

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	295	Protein: 12.8 mg/mL 10 mM Tris-HCl pH 8.3 500 mM NaCl 0.5 mM TCEP Crsytallization: The JCSG+ Suite (B9: 100 mM Citric acid pH 4.0 20% (w/v) PEG 6000; final pH 5.0 Cryocondition: Crystallization condition + sucrose (50%)

Crystal Properties
Matthews coefficient	Solvent content
2.22	44.57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.367	α = 90
b = 117.896	β = 90
c = 40.256	γ = 90

Symmetry
Space Group	P 21 21 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 300 mm CCD		2015-07-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-G	0.97856	APS	21-ID-G

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	2.1	30	99.9	0.074	25.6	7.2	22646	22646			37.8

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	2.1	2.14	100		0.599	3.5	6.5

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1EA3	2.1	29.47	21413	1086	99.88	0.17603	0.17491	0.19745	RANDOM	47.391

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]
4.36			-3.18		-1.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.686
r_dihedral_angle_3_deg	12.183
r_dihedral_angle_4_deg	8.588
r_dihedral_angle_1_deg	3.003
r_angle_refined_deg	1.497
r_angle_other_deg	1.054
r_chiral_restr	0.077
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_bond_other_d	0.005
r_gen_planes_other	0.004
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_mcbond_it
r_mcbond_other
r_mcangle_it
r_mcangle_other
r_scbond_it
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2451
Nucleic Acid Atoms
Solvent Atoms	90
Heterogen Atoms	22

Software

Software
Software Name	Purpose
REFMAC	refinement
BLU-MAX	data collection
PHASER	phasing
HKL-2000	data reduction
Coot	model building
ARP	model building
HKL-2000	data scaling