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:	S308
P-Site Sequence:	TPSSTVSSSCSSQEK
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	S308	TPSSTVSSSCSSQEK	100 / 9 AA	284
Phosphosite 1:	MAST1	Q9Y2H9	S110	TPSSTVSSSCSSQER	100 / 9 AA	171
Phosphosite 2:	MAST2	Q6P0Q8	S250	TPSSTVSSSCSSQEK	100 / 9 AA	196
Phosphosite 3:	MAST1	Q9Y2H9	S111	PSSTVSSSCSSQERL	100 / 8 AA	171
Phosphosite 4:	MAST2	Q6P0Q8	S251	PSSTVSSSCSSQEKL	100 / 8 AA	196
Phosphosite 5:	MAST4	O15021	S309	PSSTVSSSCSSQEKL	100 / 8 AA	284
Phosphosite 6:	MAST1	Q9Y2H9	S109	NTPSSTVSSSCSSQE	100 / 8 AA	171
Phosphosite 7:	MAST2	Q6P0Q8	S249	NTPSSTVSSSCSSQE	100 / 8 AA	196
Phosphosite 8:	MAST4	O15021	S307	NTPSSTVSSSCSSQE	100 / 8 AA	284
Phosphosite 9:	ZNF238	Q99592	S214	AAGKTVASPCSSTES	75 / 8 AA	58
Phosphosite 10:	PAX3	P23760	S428	PTTTVSASCSQRLDH	85 / 7 AA	53
Phosphosite 11:	POU2F3	Q9UKI9	S381	TMPGTVTSSCSPGNN	66 / 9 AA	47
Phosphosite 12:	POU2F3	Q9UKI9	S382	MPGTVTSSCSPGNNS	75 / 8 AA	47
Phosphosite 13:	PAX3	P23760	S426	LEPTTTVSASCSQRL	75 / 8 AA	53
Phosphosite 14:	POU2F3	Q9UKI9	T380	STMPGTVTSSCSPGN	75 / 8 AA	47
Phosphosite 15:	MEX3B	Q6ZN04	S394	GPAAPVSSSCSSSAS	100 / 7 AA	59
Phosphosite 16:	MEX3B	Q6ZN04	S395	PAAPVSSSCSSSASS	100 / 7 AA	59
Phosphosite 17:	GJA9	P57773	T338	NEISTLSTSCSHFQH	75 / 8 AA	59
Phosphosite 18:	GJA9	P57773	S337	SNEISTLSTSCSHFQ	75 / 8 AA	59
Phosphosite 19:	PHF17	Q6IE81	S544	ERVSGVPSSCSSSSL	77 / 9 AA	96
Phosphosite 20:	FAM135A	Q9P2D6	S936	ETSSDVKSSCSSKPN	77 / 9 AA	170