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:	S501
P-Site Sequence:	EHANWSVSREAGFSY
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	S501	EHANWSVSREAGFSY	100 / 9 AA	124
Phosphosite 1:	PIK3CA	P42336	S499	IEEHANWSVSREAGF	100 / 7 AA	124
Phosphosite 2:	CASZ1	Q86V15	S144	DHPNWTGSREGGVVA	66 / 9 AA	190
Phosphosite 3:	TET3	O43151	S94	ETFNREMSREAGNNS	66 / 9 AA	179
Phosphosite 4:	MIDN	Q504T8	S421	GPYHWSPSRKAGRSD	66 / 9 AA	49
Phosphosite 5:	HIVEP3	Q5T1R4	S1972	PRRPWSPSKEAGSRP	75 / 8 AA	259
Phosphosite 6:	TTC12	Q9H892	S191	NLALKNYSVSRECYK	85 / 7 AA	79
Phosphosite 7:	Putative uncharacterized protein FLJ40288	A4D1N5	S25	YCFERPISREAGPVV	55 / 9 AA	17
Phosphosite 8:	ANKRD5	Q9NU02	S333	ALRLHDWSVEREAFL	71 / 7 AA	87
Phosphosite 9:	OTOF	Q9HC10	S1469	VPLPEDVSREAGYDS	100 / 6 AA	227
Phosphosite 10:	DAZ3	Q9NR90	S14	ETPNSTISREASTQS	55 / 9 AA	55
Phosphosite 11:	DAZ1	Q9NQZ3	S14	ETPNSTISREASTQS	55 / 9 AA	83
Phosphosite 12:	DAZL	Q92904	S14	ETPNSTISREASTQS	55 / 9 AA	33
Phosphosite 13:	DAZ4	Q86SG3	S14	ETPNSTISREASTQS	55 / 9 AA	65
Phosphosite 14:	DAZ2	Q13117	S14	ETPNSTISREASTQS	55 / 9 AA	63
Phosphosite 15:	CASZ1	Q86V15	T142	SQDHPNWTGSREGGV	71 / 7 AA	190
Phosphosite 16:	USP42	Q9H9J4	S506	SASVQNWSVNRSSVI	83 / 6 AA	146
Phosphosite 17:	ADAMTS10	Q9H324	S234	GQPGLKRSVSRERYV	71 / 7 AA	121
Phosphosite 18:	KIAA0556	O60303	S16	AERSWSCSREKKEGY	71 / 7 AA	181
Phosphosite 19:	HLTF	Q14527	S253	QALAWMVSRENSKEL	83 / 6 AA	114
Phosphosite 20:	InsR	P06213	S1019	VPDEWEVSREKITLL	71 / 7 AA	156