4NC3

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

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4IB4	PDB ENTRY 4IB4

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	2013-03-22	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 U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.