8AM0

Crystal structure of human T1061E PI3Kalpha in complex with its regulatory subunit and the inhibitor GDC-0077 (Inavolisib)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.1	293	0.10 M Bis-Tris-Propane pH 8.10, 0.20 M Na 3 -citrate, 10.00 %(w/v) PEG 3350
2	VAPOR DIFFUSION, HANGING DROP	8.1	293	0.10 M Bis-Tris-Propane pH 8.10, 0.20 M Na 3 -citrate, 10.00 %(w/v) PEG 3350
3	VAPOR DIFFUSION, HANGING DROP	8.1	293	0.10 M Bis-Tris-Propane pH 8.10, 0.20 M Na 3 -citrate, 10.00 %(w/v) PEG 3350

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 99.81	α = 90
b = 107.68	β = 90
c = 136.3	γ = 90

Symmetry
Space Group	P 21 21 21

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		2018-11-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04-1	0.97625	Diamond	I04-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	2.436	47.386	80.7	0.284	0.066	0.996	8.2	18.6		44827

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.436	2.626	20.3		2.395	0.546	0.648	1.4	19.1

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	4L1B	2.818	47.39	36173	1768	100	0.2861	0.2854	0.3	RANDOM	69.9

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]
5.4524			7.0528		-12.5052

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	14.49
t_omega_torsion	1.79
t_angle_deg	0.75
t_bond_d	0.007
t_dihedral_angle_d
t_gen_planes
t_it
t_chiral_improper_torsion
t_ideal_dist_contact

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10604
Nucleic Acid Atoms
Solvent Atoms	189
Heterogen Atoms	52

Software

Software
Software Name	Purpose
BUSTER	refinement
XDS	data reduction
STARANISO	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 R01GM157729.