5KW2

The extra-helical binding site of GPR40 and the structural basis for allosteric agonism and incretin stimulation

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	LIPIDIC CUBIC PHASE		298	0.1 M Tris HCl, pH 8.5, 30% PEG 400, 0.2 M ammonium formate.

Crystal Properties
Matthews coefficient	Solvent content
3.12	60.54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 147.654	α = 90
b = 55.95	β = 93.77
c = 80.313	γ = 90

Symmetry
Space Group	C 1 2 1

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	RAYONIX MX-225		2016-02-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.97931	APS	31-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.76	19.81	99.6	0.13	5.9	3.7		16090

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	2.76	2.91	100		1.2	3.7

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	4PHU	2.76	19.81	16090	857	100	0.2326	0.2304	0.2727	RANDOM	41.374

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]
0.77		-1.55	3.1		-4.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.442
r_dihedral_angle_3_deg	15.338
r_dihedral_angle_4_deg	12.2
r_dihedral_angle_1_deg	3.932
r_angle_refined_deg	0.952
r_chiral_restr	0.059
r_bond_refined_d	0.006
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3128
Nucleic Acid Atoms
Solvent Atoms	52
Heterogen Atoms	46

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
SCALA	data scaling
PHASER	phasing

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 R01GM133198.