8SBJ

Co-structure Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform complexed with brain penetrant inhibitors

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.2	303	RESERVOIR SOLUTION : 12%-20% PEG 3350, 0.125M-0.20M KSCN; PROTEIN SOLUTION: 20MM TRIS PH 7.2, 200MM NACL, 1% BETAINE, 1% ETHYLENE GLYCOL, 0.02% CHAPS, 5MM DTT, PROTEIN IS 7.4 MG/ML, FORMATION METHOD : SOAKING, PROTOCOL: SET UP APO XTALS DROPS IN 1:1 RATIO IN 30C, XTALS GROW OVERNIGHT, THEN ADD 2MM OF STOCK CPD AND INCUBATE FOR A FEW HOURS; CRYO PROTOCOL: 20% ETHYLENE GLYCOL PLUS WELL SOLUTION

Crystal Properties
Matthews coefficient	Solvent content
2.25	45.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 100.022	α = 90
b = 107.75	β = 90
c = 133.868	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		2016-01-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.2	1.000	ALS	5.0.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	3.1	133.87	99.9	0.154	0.161	0.046	0.999	15.3	12.2		26927	-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.1	3.31		99.9	1.485	1.543	0.418	0.809		13.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	FREE R-VALUE	3.1	83.94	1.34	26844	1266	99.75	0.2091	0.2067	0.257

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	10.947
f_angle_d	0.396
f_chiral_restr	0.037
f_plane_restr	0.003
f_bond_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9777
Nucleic Acid Atoms
Solvent Atoms	18
Heterogen Atoms	28

Software

Software
Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
XDS	data reduction
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.