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:	S229
P-Site Sequence:	RGSLCRTSNRKSLIG
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	S229	RGSLCRTSNRKSLIG	100 / 9 AA	284
Phosphosite 1:	MAST2	Q6P0Q8	S171	RGSFCRTSNRKSLIV	88 / 9 AA	196
Phosphosite 2:	MAST4	O15021	T228	RRGSLCRTSNRKSLI	100 / 8 AA	284
Phosphosite 3:	MAST1	Q9Y2H9	S32	RTKSCRTSNRKSLIL	100 / 8 AA	171
Phosphosite 4:	MAST2	Q6P0Q8	T170	RRGSFCRTSNRKSLI	87 / 8 AA	196
Phosphosite 5:	MAST1	Q9Y2H9	T31	RRTKSCRTSNRKSLI	100 / 7 AA	171
Phosphosite 6:	RAD21L1	Q9H4I0	S513	LMKLCRNSDRKQAAA	75 / 8 AA	63
Phosphosite 7:	CCNG2	Q16589	S174	TIILCHTSERKEILS	75 / 8 AA	39
Phosphosite 8:	RAD21	O60216	T588	LLELCRNTNRKQAAA	75 / 8 AA	72
Phosphosite 9:	IL1RN	P18510	S28	SETICRPSGRKSSKM	66 / 9 AA	20
Phosphosite 10:	Bcl-10	O95999	T59	TEEISCRTSSRKRAG	85 / 7 AA	26
Phosphosite 11:	ZNF789	Q5FWF6	T77	WILDLPRTGNRKASG	75 / 8 AA	50
Phosphosite 12:	Bcl-10	O95999	S61	EISCRTSSRKRAGKL	85 / 7 AA	26
Phosphosite 13:	TRIM31	Q9BZY9	S59	KCPLCKTSVRKNAIR	66 / 9 AA	48
Phosphosite 14:	TRIM31	Q9BZY9	T58	FKCPLCKTSVRKNAI	75 / 8 AA	48
Phosphosite 15:	Bcl-10	O95999	S60	EEISCRTSSRKRAGK	85 / 7 AA	26
Phosphosite 16:	Per2	O15055	S275	KSFFCRVSVRKSHEN	66 / 9 AA	137
Phosphosite 17:	CDK5RAP1	Q96SZ6	T593	GHVLCRTTLRDSSAY	66 / 9 AA	68
Phosphosite 18:	ROCK1	Q13464	S456	MEQKCRTSNIKLDKI	85 / 7 AA	158
Phosphosite 19:	ROCK1	Q13464	T455	EMEQKCRTSNIKLDK	85 / 7 AA	158
Phosphosite 20:	MAST3	O60307	S27	RRGRGCRSGNRKSLV	71 / 7 AA	143