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:	Y56
P-Site Sequence:	LFKEARKYPLHQLLQ
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	Y56	LFKEARKYPLHQLLQ	100 / 9 AA	124
Phosphosite 1:	MMP27	Q9H306	Y246	VSLDPRKYPLSQDDI	66 / 9 AA	59
Phosphosite 2:	XRN2	Q9H0D6	Y938	YPREGRKYPLPPPSG	66 / 9 AA	109
Phosphosite 3:	KLHL8	Q9P2G9	Y292	LLDEARNYHLHLSSR	75 / 8 AA	69
Phosphosite 4:	Nuclear envelope pore membrane protein POM 121	Q96HA1	Y232	VITPRRRYPIHQAQY	71 / 7 AA
Phosphosite 5:	POM121	A8CG34	Y209	VITPRRRYPIHQTQY	71 / 7 AA	125
Phosphosite 6:	C5orf34	Q96MH7	Y253	ACPEEWKYPLSLALH	71 / 7 AA	73
Phosphosite 7:	ITIH5L	Q6UXX5	Y820	STLQVPKYPLHTRPR	62 / 8 AA	143
Phosphosite 8:	MYST2	O95251	Y92	TPVTPKKYPLRQTRS	62 / 8 AA	71
Phosphosite 9:	SERPINF2	P08697	Y273	EMMQARTYPLRWFLL	62 / 8 AA	55
Phosphosite 10:	HUWE1	Q7Z6Z7	Y1148	MLFDERKYPYHLMLQ	62 / 8 AA	482
Phosphosite 11:	CHST7	Q9NS84	Y244	LEAECRKYPVVVIKD	71 / 7 AA	54
Phosphosite 12:	FLJ37538	Q6ZVC0	Y266	AIYEEMKYPLPEEAG	55 / 9 AA	88
Phosphosite 13:	PCDHB18	Q96TA0	Y137	DSDEGRKYPELVLDQ	83 / 6 AA	80
Phosphosite 14:	TBCCD1	Q9NVR7	Y227	ISRARKIYPLHELAL	77 / 9 AA	64
Phosphosite 15:	HIPK3	Q9H422	Y466	KSKEARKYIFNSLDD	62 / 8 AA	134
Phosphosite 16:	RbBP2	P29375	Y775	EDAEDRKYPENDLFR	55 / 9 AA	192
Phosphosite 17:	HIPK2	Q9H2X6	Y468	KSKEARKYIFNCLDD	62 / 8 AA	131
Phosphosite 18:	HIPK1	Q86Z02	Y459	KSKEARKYIFNCLDD	62 / 8 AA	131
Phosphosite 19:	GALR2	O43603	Y129	DRYLAIRYPLHSREL	71 / 7 AA	42
Phosphosite 20:	PPAP2B	O14495	Y75	CNDESIKYPLKTGET	71 / 7 AA	35