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:	S21
P-Site Sequence:	RGCSGHGSRTPASAL
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	S21	RGCSGHGSRTPASAL	100 / 9 AA	284
Phosphosite 1:	MAST4	O15021	T23	CSGHGSRTPASALVA	100 / 7 AA	284
Phosphosite 2:	ZSCAN10	Q96SZ4	S211	AHPLGFGSRTPDKEE	85 / 7 AA	80
Phosphosite 3:	ZNF318	Q5VUA4	S50	PPPSGSSSRTPARRP	77 / 9 AA	251
Phosphosite 4:	SPT5	O00267	T814	PLHDGSRTPAQSGAW	85 / 7 AA	121
Phosphosite 5:	SPT5	O00267	S812	QTPLHDGSRTPAQSG	100 / 6 AA	121
Phosphosite 6:	TNK2	Q07912	S789	EPLSPQGSRTPSPLV	66 / 9 AA	115
Phosphosite 7:	NDC80	O14777	S66	KRTSGHGSRNSQLGI	75 / 8 AA	74
Phosphosite 8:	ACD	Q96AP0	S420	TPRSPHASRTPSSPL	75 / 8 AA	58
Phosphosite 9:	TFE3	P19532	S101	ASSSAGGSRTPAMSS	77 / 9 AA	62
Phosphosite 10:	TFE3	P19532	T103	SSAGGSRTPAMSSSS	100 / 6 AA	62
Phosphosite 11:	CELF6	Q96J87	S197	AIRGLHGSRTMAGAS	85 / 7 AA	50
Phosphosite 12:	AIM1	Q9Y4K1	T641	AQSQGSRTPLMAESS	83 / 6 AA	189
Phosphosite 13:	TRMT12	Q53H54	T184	GRVSPDGTRTPAVTL	66 / 9 AA	50
Phosphosite 14:	CELF6	Q96J87	T199	RGLHGSRTMAGASSS	85 / 7 AA	50
Phosphosite 15:	YBX2	Q9Y2T7	S63	GTPSAPGSRTPGNPA	75 / 8 AA	39
Phosphosite 16:	FLNA	P21333	T2599	VGVHGPRTPCEEILV	83 / 6 AA	281
Phosphosite 17:	PSAPL1	Q6NUJ1	T474	GACHGPRTPLLGTDQ	83 / 6 AA	57
Phosphosite 18:	TNK2	Q07912	T791	LSPQGSRTPSPLVPP	71 / 7 AA	115
Phosphosite 19:	OTOP2	Q7RTS6	S319	VQVSGDGSRTRQALV	75 / 8 AA	62
Phosphosite 20:	ACD	Q96AP0	T422	RSPHASRTPSSPLQS	83 / 6 AA	58