3ML8

Discovery of the Highly Potent PI3K/mTOR Dual Inhibitor PF-04691502 through Structure Based Drug Design

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	286	[Protein] : [Compound] = 1:10 Hanging drop: 2.5ul protein + 2.5ul well @ 13 C Well solution: 0.1M Bis-Tris propane, pH8.2, 0.2M (NH4)2SO4, 16-18% (w/v) PEG3350, 10% (v/v) Ethylene Glycol and 10mM TCEP, pH7.0 , VAPOR DIFFUSION, HANGING DROP, temperature 286K

Crystal Properties
Matthews coefficient	Solvent content
2.34	47.33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 144.237	α = 90
b = 67.388	β = 95.12
c = 106.875	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	93	CCD	MAR CCD 225	Mirrors	2010-01-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	1.0	APS	21-ID-F

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	2.7	50	99.6	0.05	0.05	22.9	3.5	28548	28363	2	2	63.2

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	2.7	2.8	100		0.556	0.556	2.3	3.5	2818

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.7	37.54	28357	27000	1329	95.2	0.25	0.25	0.246	0.324	RANDOM	71.2

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]
-3.11		5.08	11.22		-8.11

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	24.1
c_scangle_it	2.75
c_mcangle_it	2.47
c_scbond_it	1.75
c_mcbond_it	1.42
c_angle_deg	1.1
c_improper_angle_d	0.76
c_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6831
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	27

Software

Software
Software Name	Purpose
MAR345	data collection
CNX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
CNX	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.