4NC3

Crystal structure of the 5-HT2B receptor solved using serial femtosecond crystallography in lipidic cubic phase.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Lipidic Cubic Phase (LCP)	8	293	100mM Tris/HCl pH8.0, 20-80mM MgCl2 and 30% (v/v) PEG400 , Lipidic Cubic Phase (LCP), temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.28	62.48

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 61.5	α = 90
b = 122.2	β = 90
c = 168.5	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	294	PIXEL	Cornell-SLAC Pixel Array Detector (CSPAD)	K-B Mirrors	2013-03-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	FREE ELECTRON LASER	SLAC LCLS BEAMLINE CXI	1.3	SLAC LCLS	CXI

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	2.8	35	100	0.095	5.9	1150		16052

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.8	2.9	100

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 4IB4	2.8	34.681	1.33	16025	814	99.89	0.2287	0.2266	0.2701

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	15.414
f_angle_d	0.601
f_chiral_restr	0.032
f_bond_d	0.002
f_plane_restr	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2837
Nucleic Acid Atoms
Solvent Atoms	7
Heterogen Atoms	277

Software

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

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.