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:	S158
P-Site Sequence:	VDLRDLNSPHSRAMY
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	S158	VDLRDLNSPHSRAMY	100 / 9 AA	124
Phosphosite 1:	EYA1	Q99502	S8	MEMQDLTSPHSRLSG	77 / 9 AA	65
Phosphosite 2:	EYA1	Q99502	T7	_MEMQDLTSPHSRLS	75 / 8 AA	65
Phosphosite 3:	CASP8	Q14790	S387	YLEMDLSSPQTRYIP	55 / 9 AA	55
Phosphosite 4:	Phosducin	P20941	S55	EILRQMSSPQSRNGK	55 / 9 AA	28
Phosphosite 5:	DKFZp779A1753	P27816	S197	WSVEALNSPHSESFV	100 / 6 AA	51
Phosphosite 6:	PIK3CA	P42336	S161	RDLNSPHSRAMYVYP	100 / 6 AA	124
Phosphosite 7:	MUC3A	Q02505	S50	VLSNSPHSRDLAGWP	100 / 6 AA	266
Phosphosite 8:	NEURL	O76050	S280	IPQNSLNSQHSRALP	85 / 7 AA	62
Phosphosite 9:	UTX	O15550	S846	NSVTSLNSPHSGLHT	100 / 6 AA	154
Phosphosite 10:	UTY	O14607	S793	NSVTSLNSPHSGLHT	100 / 6 AA	150
Phosphosite 11:	MUC3A	Q02505	S47	ASAVLSNSPHSRDLA	100 / 6 AA	266
Phosphosite 12:	TCF20	Q9UGU0	S1322	DSSKDLPSPDSRNCP	66 / 9 AA	212
Phosphosite 13:	AFF4	Q9UHB7	S193	AVSSLNSSHSRSHGN	85 / 7 AA	127
Phosphosite 14:	AFF4	Q9UHB7	S192	QAVSSLNSSHSRSHG	85 / 7 AA	127
Phosphosite 15:	epsin 3	Q9H201	S393	TDPWALNSPHHKLPS	71 / 7 AA	68
Phosphosite 16:	EYA4	O95677	S37	MEMQDLASPHTLVGG	62 / 8 AA	70
Phosphosite 17:	SDCCAG3	Q96C92	S49	PHGRDLDSPFFGIRP	71 / 7 AA	48
Phosphosite 18:	STARD9	Q9P2P6	S3895	RSFLELHSPHSPQQS	62 / 8 AA	507
Phosphosite 19:	PLEKHA4	Q9H4M7	S552	GGDKDLASPHLGLGS	71 / 7 AA	85
Phosphosite 20:	DDX20	Q9UHI6	S48	RTAQDLSSPRTRTGD	55 / 9 AA	92