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:	S268
P-Site Sequence:	FLEKYPLSQYKYIRS
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	S268	FLEKYPLSQYKYIRS	100 / 9 AA	124
Phosphosite 1:	PIK3CA	P42336	Y270	EKYPLSQYKYIRSCI	100 / 7 AA	124
Phosphosite 2:	MMP27	Q9H306	S249	DPRKYPLSQDDINGI	100 / 6 AA	59
Phosphosite 3:	MMP27	Q9H306	Y246	VSLDPRKYPLSQDDI	100 / 6 AA	59
Phosphosite 4:	PIK3CA	P42336	Y265	DEYFLEKYPLSQYKY	100 / 6 AA	124
Phosphosite 5:	RNF145	Q96MT1	Y51	SNNPLFQYKYLALNM	85 / 7 AA	76
Phosphosite 6:	MAGI2	Q86UL8	S1135	DTRQYPLSDYRQPQD	62 / 8 AA	159
Phosphosite 7:	C1orf66	Q96FB5	S299	DPGGYPLSQWVAGLP	83 / 6 AA	53
Phosphosite 8:	KIAA1671	Q9BY89	S708	LRDKYPLSENHNNNT	83 / 6 AA	197
Phosphosite 9:	MAML1	Q92585	Y521	NTKPLSHYKADCGQG	83 / 6 AA	108
Phosphosite 10:	KIAA1671	Q9BY89	Y705	HTPLRDKYPLSENHN	83 / 6 AA	197
Phosphosite 11:	SPATA7	Q9P0W8	S254	TEAKSFLSQYRYYTP	83 / 6 AA	68
Phosphosite 12:	SPATA7	Q9P0W8	Y256	AKSFLSQYRYYTPAK	83 / 6 AA	68
Phosphosite 13:	DNAH6	Q9C0G6	Y1432	ARMALSQYTYGYEYL	71 / 7 AA	476
Phosphosite 14:	ZNF804A	Q7Z570	Y500	CMGPLSDYKDVSTEG	83 / 6 AA	137
Phosphosite 15:	ZNF804A	Q7Z570	S498	DICMGPLSDYKDVST	83 / 6 AA	137
Phosphosite 16:	CASD1	Q96PB1	Y184	SSEALSQYKMNITSI	83 / 6 AA	92
Phosphosite 17:	SVEP1	Q4LDE5	S910	IKRSAPLSDYKIKLI	83 / 6 AA	390
Phosphosite 18:	Btk	Q06187	S378	SRLKYPVSQQNKNAP	83 / 6 AA	76
Phosphosite 19:	ABCA6	Q8N139	Y1554	KLPVADVYPLSQTFH	100 / 5 AA	184
Phosphosite 20:	TSHB	P01222	S68	FLPKYALSQDVCTYR	83 / 6 AA	16