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:	S1976
P-Site Sequence:	EKPGLRESSERGPPT
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	S1976	EKPGLRESSERGPPT	100 / 9 AA	284
Phosphosite 1:	MAST4	O15021	S1977	KPGLRESSERGPPTA	100 / 8 AA	284
Phosphosite 2:	PIK3R2	O00459	S650	TFLIRESSQRGCYAC	75 / 8 AA	82
Phosphosite 3:	HOOK2	Q96ED9	S304	MDELRQSSERAGQLE	75 / 8 AA	83
Phosphosite 4:	PIK3R2	O00459	S649	GTFLIRESSQRGCYA	75 / 8 AA	82
Phosphosite 5:	HOOK2	Q96ED9	S303	EMDELRQSSERAGQL	75 / 8 AA	83
Phosphosite 6:	CCDC88A	Q3V6T2	S549	IETLRENSERQIKIL	85 / 7 AA	216
Phosphosite 7:	RP5-1077B9.4	Q5JXC2	S228	QLPGLRESSGSGVEE	77 / 9 AA	43
Phosphosite 8:	QRICH2	Q9H0J4	S1149	ELAELRESQDRGKAA	75 / 8 AA	181
Phosphosite 9:	KCNAB3	O43448	S71	PAGALRESTGRGTGM	66 / 9 AA	44
Phosphosite 10:	UCK2	Q9BZX2	S172	RRVLRDISERGRDLE	75 / 8 AA	29
Phosphosite 11:	KCNAB3	O43448	T72	AGALRESTGRGTGMK	75 / 8 AA	44
Phosphosite 12:	RBM33	Q96EV2	S295	VGDQRRESTERGRMK	85 / 7 AA	130
Phosphosite 13:	AASS	Q9UDR5	S468	YIQTLRESRERAQSL	75 / 8 AA	102
Phosphosite 14:	ERCC5	P28715	S705	ESLLRDNSERDDVDG	62 / 8 AA	133
Phosphosite 15:	WTAP	Q15007	S58	DVTGLRESEEKLKQQ	75 / 8 AA	44
Phosphosite 16:	RBM33	Q96EV2	T296	GDQRRESTERGRMKD	85 / 7 AA	130
Phosphosite 17:	HS3ST1	O14792	S150	LLILRDPSERVLSDY	71 / 7 AA	36
Phosphosite 18:	KIF4B	Q2VIQ3	T629	LLKLKESTERTVSKL	71 / 7 AA	140
Phosphosite 19:	KIF4A	O95239	T629	LLKLKESTERTVSKL	71 / 7 AA	140
Phosphosite 20:	KIF4B	Q2VIQ3	S628	KLLKLKESTERTVSK	71 / 7 AA	140