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:	Y8
P-Site Sequence:	MSAEGYQYRALYDYK
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	Y8	MSAEGYQYRALYDYK	100 / 9 AA	84
Phosphosite 1:	PIK3R2	O00459	Y9	AGPEGFQYRALYPFR	88 / 9 AA	82
Phosphosite 2:	BTN2A2	Q8WVV5	Y427	LEMFGNQYRALSSPE	85 / 7 AA	59
Phosphosite 3:	RPAP1	Q9BWH6	Y691	YGQGGYLYRELYPVL	75 / 8 AA	153
Phosphosite 4:	ADAMTSL2	Q86TH1	Y642	SRTCGEGYQFRVVRC	71 / 7 AA	105
Phosphosite 5:	ACOX2	Q99424	Y107	GRELGYAYRALSGDV	85 / 7 AA	77
Phosphosite 6:	EVPL	Q92817	Y133	VTQECAEYRALYEKM	66 / 9 AA	232
Phosphosite 7:	TPBG	Q13641	Y401	DHMEGYHYRYEINAD	83 / 6 AA	46
Phosphosite 8:	OTUD4	Q01804	Y1087	SRDEGYQYHRNVRGR	83 / 6 AA	124
Phosphosite 9:	CAPZB	P47756	Y107	ANNAFDQYRDLYFEG	83 / 6 AA	31
Phosphosite 10:	NSMCE4A	Q9NXX6	Y89	CRQIRHQYRALINSV	83 / 6 AA	44
Phosphosite 11:	TNRC18	O15417	Y2238	AAYWSQQYRCLYPGT	83 / 6 AA	315
Phosphosite 12:	OTUD4	Q01804	Y1085	SRSRDEGYQYHRNVR	83 / 6 AA	124
Phosphosite 13:	ALDOA	P04075	Y5	____PYQYPALTPEQ	83 / 6 AA	39
Phosphosite 14:	THRB	P10828	Y119	DKATGYHYRCITCEG	57 / 7 AA	53
Phosphosite 15:	THRA	P10827	Y65	DKATGYHYRCITCEG	57 / 7 AA	55
Phosphosite 16:	ALDOA	P04075	Y59	___MPYQYPALTPEQ	83 / 6 AA	39
Phosphosite 17:	HIRA	P54198	Y953	LVNEGFEYRLREICK	66 / 6 AA	112
Phosphosite 18:	BTRC	Q9Y297	Y272	NSFYRALYPKIIQDI	100 / 5 AA	69
Phosphosite 19:	TUBB2B	Q9BVA1	Y281	TSRGSQQYRALTVPE	100 / 5 AA	50
Phosphosite 20:	TUBB6	Q9BUF5	Y281	TSRGSQQYRALTVPE	100 / 5 AA	50