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:	S499
P-Site Sequence:	IEEHANWSVSREAGF
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	S499	IEEHANWSVSREAGF	100 / 9 AA	124
Phosphosite 1:	PIK3CA	P42336	S501	EHANWSVSREAGFSY	100 / 7 AA	124
Phosphosite 2:	CASZ1	Q86V15	T142	SQDHPNWTGSREGGV	66 / 9 AA	190
Phosphosite 3:	TTC12	Q9H892	S191	NLALKNYSVSRECYK	85 / 7 AA	79
Phosphosite 4:	LOC374569	Q86U10	S151	VPIHALWSDGRENLL	66 / 9 AA	60
Phosphosite 5:	ANKRD5	Q9NU02	S333	ALRLHDWSVEREAFL	71 / 7 AA	87
Phosphosite 6:	C5orf34	Q96MH7	S561	SVLQENWSVASELEK	55 / 9 AA	73
Phosphosite 7:	CMYA1	Q702N8	S498	GRLHALTSVSREQIV	77 / 9 AA	199
Phosphosite 8:	CASZ1	Q86V15	S144	DHPNWTGSREGGVVA	71 / 7 AA	190
Phosphosite 9:	USP42	Q9H9J4	S506	SASVQNWSVNRSSVI	83 / 6 AA	146
Phosphosite 10:	KIAA0556	O60303	S16	AERSWSCSREKKEGY	71 / 7 AA	181
Phosphosite 11:	ADAMTS10	Q9H324	S234	GQPGLKRSVSRERYV	71 / 7 AA	121
Phosphosite 12:	PDHX	O00330	S36	VKGALGWSVSRGANW	71 / 7 AA	54
Phosphosite 13:	HLTF	Q14527	S253	QALAWMVSRENSKEL	83 / 6 AA	114
Phosphosite 14:	InsR	P06213	S1019	VPDEWEVSREKITLL	71 / 7 AA	156
Phosphosite 15:	ADAMTS10	Q9H324	S236	PGLKRSVSRERYVET	71 / 7 AA	121
Phosphosite 16:	KIAA0556	O60303	S14	RKAERSWSCSREKKE	71 / 7 AA	181
Phosphosite 17:	RANBP17	Q9H2T7	S1002	CRNQWSVSRPLLGLI	100 / 5 AA	124
Phosphosite 18:	LPAR6	P43657	S308	SIKMKNWSVRRSDFR	83 / 6 AA	39
Phosphosite 19:	KIAA1257	Q9ULG3	S301	DSSTIQWSVSRTPTI	100 / 5 AA	47
Phosphosite 20:	KIAA1257	Q9ULG3	S303	STIQWSVSRTPTISL	100 / 5 AA	47