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:	S474
P-Site Sequence:	YEEYTRTSQEIQMKR
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	S474	YEEYTRTSQEIQMKR	100 / 9 AA	84
Phosphosite 1:	PIK3R3	Q92569	S206	YEEYTRTSQEIQMKR	100 / 9 AA	54
Phosphosite 2:	PIK3R2	O00459	S471	YEEYTRTSQELQMKR	88 / 9 AA	82
Phosphosite 3:	PIK3R3	Q92569	T205	LYEEYTRTSQEIQMK	100 / 8 AA	54
Phosphosite 4:	PIK3R1	P27986	T473	LYEEYTRTSQEIQMK	100 / 8 AA	84
Phosphosite 5:	PIK3R2	O00459	T470	LYEEYTRTSQELQMK	87 / 8 AA	82
Phosphosite 6:	PIK3R3	Q92569	T203	DRLYEEYTRTSQEIQ	100 / 6 AA	54
Phosphosite 7:	PIK3R1	P27986	T471	DRLYEEYTRTSQEIQ	100 / 6 AA	84
Phosphosite 8:	PIK3R2	O00459	T468	DQLYEEYTRTSQELQ	100 / 6 AA	82
Phosphosite 9:	SIPA1L1	O43166	S97	IKESSRSSQEIETSS	62 / 8 AA	200
Phosphosite 10:	MPP4	Q96JB8	S104	LLRETPTSPEIQELR	75 / 8 AA	73
Phosphosite 11:	NUP93	Q8N1F7	S52	SRTLTRTSQETADVK	100 / 6 AA	93
Phosphosite 12:	CHPF	Q8IZ52	Y349	RAELERTYQEIQELQ	85 / 7 AA	85
Phosphosite 13:	NUP93	Q8N1F7	T51	RSRTLTRTSQETADV	85 / 7 AA	93
Phosphosite 14:	ZC3H14	Q6PJT7	S390	VAPRTRTSQEELLAE	100 / 6 AA	83
Phosphosite 15:	SIPA1L1	O43166	S96	NIKESSRSSQEIETS	71 / 7 AA	200
Phosphosite 16:	ZC3H14	Q6PJT7	T389	PVAPRTRTSQEELLA	100 / 6 AA	83
Phosphosite 17:	OGFR	Q9NZT2	S160	EVEVFKSSQEIQERL	71 / 7 AA	73
Phosphosite 18:	STX5	Q13190	S253	DMMDSRTSQQLQLID	62 / 8 AA	40
Phosphosite 19:	GOLGB1	Q14789	S649	TEHQSRTSEEISLND	71 / 7 AA	376
Phosphosite 20:	KIF15	Q9NS87	S1323	YEERERTSQEMEMLR	71 / 7 AA	160