5SVS | pdb_00005svs

Anomalous Mn2+ signal reveals a divalent cation-binding site in the head domain of the ATP-gated human P2X3 ion channel

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		277.15	25% PEG 400, 100 mM MES, pH 6.85, 50 mM MnCl2

Crystal Properties
Matthews coefficient	Solvent content
4.01	69.29

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 120.2	α = 90
b = 120.2	β = 90
c = 236.24	γ = 120

Symmetry
Space Group	H 3 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	ADSC QUANTUM 315		2015-09-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.2	1.7712	ALS	5.0.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	4.03	50	99.7	11.6	11.34		10534

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	4.025	47.775	1.34	10524	535	99.62	0.2313	0.2286	0.2702	0.2748	0.3174

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	16.635
f_angle_d	0.786
f_chiral_restr	0.053
f_plane_restr	0.005
f_bond_d	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2447
Nucleic Acid Atoms
Solvent Atoms	26
Heterogen Atoms	61

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing