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:	MAST4
Human P-Site:	S1456
P-Site Sequence:	SEEKLSPSYGSDKKH
UniProt:	O15021
Intern. Prot. ID:	IPI00307611

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	MAST4	O15021	S1456	SEEKLSPSYGSDKKH	100 / 9 AA	284
Phosphosite 1:	MAST4	O15021	Y1457	EEKLSPSYGSDKKHL	100 / 8 AA	284
Phosphosite 2:	MAST4	O15021	S1454	VQSEEKLSPSYGSDK	100 / 7 AA	284
Phosphosite 3:	KDR	P35968	S1279	LEDRTKLSPSFGGMV	85 / 7 AA	152
Phosphosite 4:	KDR	P35968	S1281	DRTKLSPSFGGMVPS	85 / 7 AA	152
Phosphosite 5:	TBX4	P57082	S381	DQQMLSPSYCSEVTP	66 / 9 AA	60
Phosphosite 6:	BRD8	Q9H0E9	S587	PESMLSPSHGSNPIE	66 / 9 AA	135
Phosphosite 7:	ALKBH5	Q6P6C2	S305	SSSVLPPSYASDRLS	75 / 8 AA	51
Phosphosite 8:	ALKBH5	Q6P6C2	Y306	SSVLPPSYASDRLSG	75 / 8 AA	51
Phosphosite 9:	GFOD2	Q3B7J2	S161	SGSLLSPSYGWICDE	85 / 7 AA	42
Phosphosite 10:	TBX4	P57082	Y382	QQMLSPSYCSEVTPR	75 / 8 AA	60
Phosphosite 11:	MAST4	O15021	S1459	KLSPSYGSDKKHLCS	100 / 6 AA	284
Phosphosite 12:	RNF157	Q96PX1	Y401	LSGMLPSYGSDGHLP	100 / 6 AA	74
Phosphosite 13:	RNF157	Q96PX1	S400	HLSGMLPSYGSDGHL	100 / 6 AA	74
Phosphosite 14:	CPEB3	Q8NE35	S106	PGASLSPSFGSTWST	85 / 7 AA	76
Phosphosite 15:	RNF157	Q96PX1	S403	GMLPSYGSDGHLPPV	100 / 6 AA	74
Phosphosite 16:	CHRNA2	Q15822	S398	HPLRLKLSPSYHWLE	100 / 6 AA	60
Phosphosite 17:	CHRNA2	Q15822	S400	LRLKLSPSYHWLESN	100 / 6 AA	60
Phosphosite 18:	APC2	O95996	T998	RTIKLSPTYQHVPLL	83 / 6 AA	244
Phosphosite 19:	APC2	O95996	S996	RVRTIKLSPTYQHVP	83 / 6 AA	244
Phosphosite 20:	SLC12A8	A0AV02	S440	LLLEKAPSYGSEGPA	71 / 7 AA	78