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:	S174
P-Site Sequence:	YPPNVESSPELPKHI
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	S174	YPPNVESSPELPKHI	100 / 9 AA	124
Phosphosite 1:	EIF4G1	Q04637	S377	LEPEVESSPELAPPP	87 / 8 AA	176
Phosphosite 2:	TOX4	O94842	S515	VPPTVESSPERPMNN	77 / 9 AA	66
Phosphosite 3:	DMXL2	Q8TDJ6	S944	PGQKNVDSSPETSPS	85 / 7 AA	340
Phosphosite 4:	DMXL2	Q8TDJ6	S945	GQKNVDSSPETSPSV	85 / 7 AA	340
Phosphosite 5:	SEMA6C	Q9H3T2	T704	CLPTPESTPELPVKH	85 / 7 AA	100
Phosphosite 6:	FLN29	O14545	S415	DSQPQETSPELPRRR	85 / 7 AA	65
Phosphosite 7:	TDRD5	Q8NAT2	S903	PSGSVESSPEILKNE	75 / 8 AA	110
Phosphosite 8:	SPAG9	O60271	S347	EVQAIIESTPELDMD	71 / 7 AA	146
Phosphosite 9:	Rap1GAP	P47736	S542	ENSSTQSSPEMPTTK	55 / 9 AA	73
Phosphosite 10:	SPAG9	O60271	T348	VQAIIESTPELDMDK	71 / 7 AA	146
Phosphosite 11:	FAM124A	Q86V42	S510	TSTLTDSSPQLPCDT	62 / 8 AA	60
Phosphosite 12:	JPH4	Q96JJ6	S457	GLTPSEGSPELPSSP	85 / 7 AA	66
Phosphosite 13:	BAT3	P46379	S423	SSTNVESSAEGAPPP	85 / 7 AA	119
Phosphosite 14:	CCDC57	Q2TAC2	T854	VTSQGDSTPELPAPP	71 / 7 AA	103
Phosphosite 15:	SHANK2	Q9UPX8	S643	KQSNVEDSPEKTCSI	85 / 7 AA	159
Phosphosite 16:	L3MBTL2	Q969R5	S689	ASPDKASSPELPVSV	100 / 6 AA	79
Phosphosite 17:	ZFP106	Q9H2Y7	S1026	RATGDGSSPELPSLE	100 / 6 AA	209
Phosphosite 18:	SLC5A7	Q9GZV3	S568	EAFLDVDSSPEGSGT	71 / 7 AA	63
Phosphosite 19:	LGI4	Q8N135	S43	DSALCEGSPDLPVSF	62 / 8 AA	59
Phosphosite 20:	TOX4	O94842	S514	LVPPTVESSPERPMN	85 / 7 AA	66