4POT

Structure of Human Polyomavirus 9 VP1 pentamer in complex with N-glycolylneuraminic acid containing 3'-sialyllactosamine

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.15	293	20% v/v isopropanol, 0.2 M calcium chloride, 0.1 M sodium acetate, pH 5.15, soaked in 40 mM (N-glycolyl neuraminic acid) 3'-sialyllactosamine for 20 minutes, cryoprotectant: 25% v/v ethylene glycol, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.02	59.34

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 103.4	α = 90
b = 177.65	β = 90
c = 198.65	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	93	PIXEL	DECTRIS PILATUS 2M-F	mirrors	2012-07-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06DA	1.0	SLS	X06DA

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	132.422	99.4	0.15	10.52	3.84	211585	212860	-3	-3	28.26

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	2.15	99.65		0.81	2.25	3.98	15585

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	PDB ENTRY 4POQ	2.1	132.422	211585	201037	10548	99.31	0.18595	0.18595	0.18394	0.22428	RANDOM	26.366

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]
			0.07		-0.07

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.521
r_dihedral_angle_4_deg	18.154
r_dihedral_angle_3_deg	12.92
r_dihedral_angle_1_deg	6.167
r_long_range_B_refined	5.481
r_angle_refined_deg	1.222
r_mcangle_it	1.171
r_scbond_it	1.127
r_mcbond_it	0.673
r_chiral_restr	0.077
r_bond_refined_d	0.008
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
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_other
r_mcangle_other
r_scbond_other
r_scangle_it
r_scangle_other
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	20595
Nucleic Acid Atoms
Solvent Atoms	2395
Heterogen Atoms	636

Software

Software
Software Name	Purpose
RemDAq	data collection
MOLREP	phasing
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling