6GB1

Crystal structure of the GLP1 receptor ECD with Peptide 11

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	292	A 6-fold excess of peptide 11 was dissolved in a solution of 12 mg/ml GLP1R-ECD in 10 mM Tris buffer pH 7.5, 100 mM NaSulfate and 2% glycerol. 100 nl of this protein solution plus 100 nl reservoir solution were equilibrated against reservoir solution consisting of 10 mM CoCl2, 9.4 % (v/v) 1,6-hexanediol and 100 mM NaAcetate, pH 4.8. Crystals appeared after about one week.

Crystal Properties
Matthews coefficient	Solvent content
3.42	64.02

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.55	α = 90
b = 55.55	β = 90
c = 138.83	γ = 90

Symmetry
Space Group	P 43 21 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	PIXEL	DECTRIS PILATUS 6M		2017-04-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA	0.999920	SLS	X10SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.73	51.57	100	0.075	0.075	22	12		6336			95.53

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.73	2.87	100		1.096	1.096	2.3	12.8

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	3c59	2.73	51.57	6273	308	100	0.208	0.205	0.262	RANDOM	83.65

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]
9.7569			9.7569		-19.5139

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	22.38
t_omega_torsion	3.36
t_angle_deg	1.18
t_bond_d	0.01
t_dihedral_angle_d
t_incorr_chiral_ct
t_pseud_angle
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
t_chiral_improper_torsion
t_sum_occupancies
t_utility_distance
t_utility_angle
t_utility_torsion
t_ideal_dist_contact

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1075
Nucleic Acid Atoms
Solvent Atoms	42
Heterogen Atoms	33

Software

Software
Software Name	Purpose
BUSTER	refinement
XDS	data reduction
autoPROC	data scaling
SCALA	data scaling
PHASER	phasing