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:	PIK3R1
Human P-Site:	Y657
P-Site Sequence:	ESSKQGCYACSVVVD
UniProt:	P27986
Intern. Prot. ID:	IPI00021448

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PIK3R1	P27986	Y657	ESSKQGCYACSVVVD	100 / 9 AA	84
Phosphosite 1:	PIK3R3	Q92569	Y391	ESSKKGCYACSVVAD	88 / 9 AA	54
Phosphosite 2:	PIK3R2	O00459	Y655	ESSQRGCYACSVVVD	77 / 9 AA	82
Phosphosite 3:	ADAMTSL3	P82987	Y1261	TRKEQGIYECSVANH	66 / 9 AA	189
Phosphosite 4:	ZNF587	Q96SQ5	Y240	LFTRDGCYVCSDCGK	62 / 8 AA	66
Phosphosite 5:	ZNF417	Q8TAU3	Y240	LFTRDGCYVCSDCGK	62 / 8 AA	66
Phosphosite 6:	MUC6	Q6W4X9	Y1177	GSNIEGCYNCSQDEY	71 / 7 AA	252
Phosphosite 7:	LRIG3	Q6UXM1	Y971	YIKKKECYPCSHPSE	62 / 8 AA	123
Phosphosite 8:	ATN1	P54259	S577	SSSTSQGSYPCSHPS	71 / 7 AA	125
Phosphosite 9:	ATN1	P54259	Y578	SSTSQGSYPCSHPSP	71 / 7 AA	125
Phosphosite 10:	RTP2	Q5QGT7	Y97	RVFKQLCYECGTARL	55 / 9 AA	26
Phosphosite 11:	RTP1	P59025	Y133	RVFKQLCYECGTARL	55 / 9 AA	31
Phosphosite 12:	ATP11C	Q8NB49	Y689	ETAKSTCYACRLFQT	55 / 9 AA	129
Phosphosite 13:	ZNF26	P17031	Y106	LESIERSYACSVLGR	62 / 8 AA	61
Phosphosite 14:	RP1L1	Q8IWN7	Y102	QLEDGGCYLCSDKKP	83 / 6 AA	261
Phosphosite 15:	PSG8	Q9UQ74	Y392	TTKHSGLYACSVRNS	85 / 7 AA	48
Phosphosite 16:	PSG3	Q16557	Y392	TTKHSGLYACSVRNS	85 / 7 AA	48
Phosphosite 17:	PSG7	Q13046	Y392	TTKHSGLYACSVRNS	85 / 7 AA	47
Phosphosite 18:	PSG6	Q00889	Y391	TTNHSGLYACSVRNS	85 / 7 AA	49
Phosphosite 19:	PSG4	Q00888	Y392	TTKHSGLYACSVRNS	85 / 7 AA	47
Phosphosite 20:	PSG9	Q00887	Y392	TRNHSGLYACSVHNS	85 / 7 AA	48