5SXE

Crystal Structure of PI3Kalpha in complex with fragments 19 and 28

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	NaFormate

Crystal Properties
Matthews coefficient	Solvent content
3.05	59.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 113.827	α = 90
b = 116.261	β = 90
c = 148.977	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 PILATUS3 S 6M		2014-10-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.2	1.0	ALS	5.0.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	3.5	91.65	99.9	0.112	6.4	6.5		25370

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.5	3.63	100		0.952		6.6

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	FOURIER SYNTHESIS	THROUGHOUT	4OVU	3.51	91.65	24018	1306	99.59	0.1954	0.1913	0.2713	RANDOM	137.841

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]
1.33			-0.32		-1.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.626
r_dihedral_angle_3_deg	18.659
r_dihedral_angle_4_deg	16.174
r_mcangle_it	13.827
r_mcbond_it	8.938
r_mcbond_other	8.924
r_dihedral_angle_1_deg	7.519
r_angle_refined_deg	1.538
r_angle_other_deg	1.004
r_chiral_restr	0.083
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10503
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	15

Software

Software
Software Name	Purpose
HKL-2000	data collection
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
REFMAC	phasing