Note - Blast analyses are based on comparisons of the phosphosites and the bordering four amino acids on each side of these phosphosites.

Phosphosite
Human Protein:	PIK3CA
Human P-Site:	S326
P-Site Sequence:	NGETSTKSLWVINSA
UniProt:	P42336
Intern. Prot. ID:	IPI00031386

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PIK3CA	P42336	S326	NGETSTKSLWVINSA	100 / 9 AA	124
Phosphosite 1:	ANKRD49	Q8WVL7	S43	LIPTGTQSLWVGNSD	75 / 8 AA	27
Phosphosite 2:	KIAA1731	Q9C0D2	S399	NKIRSQKSLWTIKSM	75 / 8 AA	295
Phosphosite 3:	PCNT	O95613	S2096	VDAADTKSLWPMASA	55 / 9 AA	378
Phosphosite 4:	DOCK4	Q8N1I0	S1435	DKENEFKSLWVERTS	100 / 5 AA	225
Phosphosite 5:	PCNT	O95613	T2094	QNVDAADTKSLWPMA	71 / 7 AA	378
Phosphosite 6:	ITPR1	Q14643	S278	SATSATSSKALWEVE	71 / 7 AA	314
Phosphosite 7:	ITPR2	Q14571	S278	SATSATSSKALWEIE	71 / 7 AA	308
Phosphosite 8:	PLEC1	Q15149	S3723	SHGGSTMSLWEVMQS	62 / 8 AA	532
Phosphosite 9:	ABCA9	Q8IUA7	S863	KLKKERKSLWTILLL	83 / 6 AA	184
Phosphosite 10:	KIAA1731	Q9C0D2	T402	RSQKSLWTIKSMSED	83 / 6 AA	295
Phosphosite 11:	ARSB	P15848	T471	SSDPPTKTLWLFDID	50 / 8 AA	60
Phosphosite 12:	HEL308	Q8TDG4	S794	KVLLKEKSLWEITVE	83 / 6 AA	124
Phosphosite 13:	PLEC1	Q15149	T3721	GGSHGGSTMSLWEVM	83 / 6 AA	532
Phosphosite 14:	ZMYND8	Q9ULU4	S1173	NTSTSTKSLLPKESR	85 / 7 AA	132
Phosphosite 15:	C21orf56	Q9H0A9	T235	EKIEQTSTKSLDGSV	100 / 6 AA	38
Phosphosite 16:	LSP1	P33241	S295	AGDMSKKSLWEQKGG	83 / 6 AA	37
Phosphosite 17:	C2orf67	A0AUZ9	S912	NQSQETKSLWWERRA	100 / 5 AA	112
Phosphosite 18:	FOXRED2	Q8IWF2	S630	QGLVSTESLWQHRVE	83 / 6 AA	78
Phosphosite 19:	C21orf56	Q9H0A9	S237	IEQTSTKSLDGSVDE	100 / 6 AA	38
Phosphosite 20:	FOXRED2	Q8IWF2	T628	RMQGLVSTESLWQHR	83 / 6 AA	78