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:	S233
P-Site Sequence:	CRTSNRKSLIGNGQS
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	S233	CRTSNRKSLIGNGQS	100 / 9 AA	284
Phosphosite 1:	MAST2	Q6P0Q8	S175	CRTSNRKSLIVTSST	100 / 7 AA	196
Phosphosite 2:	MAST1	Q9Y2H9	S36	CRTSNRKSLILTSTS	100 / 7 AA	171
Phosphosite 3:	PAK5	Q9P286	S602	KEVPKRKSLVGTPYW	55 / 9 AA	81
Phosphosite 4:	PAK6	Q9NQU5	S560	KDVPKRKSLVGTPYW	55 / 9 AA	75
Phosphosite 5:	LEFTY1	O75610	S161	DDGSNRTSLIDSRLV	66 / 9 AA	41
Phosphosite 6:	LEFTY2	O00292	S161	DDGSNRTSLIDSRLV	66 / 9 AA	41
Phosphosite 7:	FLJ35894	Q8NA31	S591	YKSELRKSLICNKKI	85 / 7 AA	58
Phosphosite 8:	KHS1	Q9Y4K4	S174	ATIAKRKSFIGTPYW	55 / 9 AA	95
Phosphosite 9:	KHS2	Q8IVH8	S170	ATIAKRKSFIGTPYW	55 / 9 AA	101
Phosphosite 10:	ZDBF2	Q9HCK1	S261	HKESNRKSLRMNSDK	77 / 9 AA	266
Phosphosite 11:	PAK4	O96013	S474	KEVPRRKSLVGTPYW	71 / 7 AA	64
Phosphosite 12:	MAST3	O60307	S32	CRSGNRKSLVVGTPS	71 / 7 AA	143
Phosphosite 13:	TBCCD1	Q9NVR7	S137	NKVSLRTSLIGEEWP	66 / 9 AA	64
Phosphosite 14:	IL16	Q14005	S175	SLCSNRKSLSQQLDC	100 / 6 AA	142
Phosphosite 15:	SUV420H1	Q4FZB7	S397	NATSNRKSSVGVKKN	75 / 8 AA	99
Phosphosite 16:	FEM1C	Q96JP0	S179	GADVNRKSVKGNTAL	75 / 8 AA	69
Phosphosite 17:	CPAP	Q9HC77	S467	LKCSNRKSLSPSGLK	100 / 6 AA	153
Phosphosite 18:	SQLE	Q14534	S294	LFSKFRKSLVSNKVS	71 / 7 AA	64
Phosphosite 19:	BMP6	P22004	S186	AHPLNRKSLLAPGSG	71 / 7 AA	57
Phosphosite 20:	SLITRK4	Q8IW52	S793	PDKKSKKSLIGGNHS	71 / 7 AA	94