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:	S2148
P-Site Sequence:	LTAKDLSSPAARQHC
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	S2148	LTAKDLSSPAARQHC	100 / 9 AA	284
Phosphosite 1:	SKI	P12755	S515	SSAKDLGSPGARALP	77 / 9 AA	80
Phosphosite 2:	TGFB2	P61812	S179	LKSKDLTSPTQRYID	66 / 9 AA	48
Phosphosite 3:	CASP8	Q14790	S387	YLEMDLSSPQTRYIP	66 / 9 AA	55
Phosphosite 4:	RAB34	Q9BZG1	T172	GSKKDLSTPAQYALM	85 / 7 AA	29
Phosphosite 5:	TCF20	Q9UGU0	S1322	DSSKDLPSPDSRNCP	66 / 9 AA	212
Phosphosite 6:	GLI3	P10071	S445	KPDEDLPSPGARGQQ	75 / 8 AA	170
Phosphosite 7:	RAB34	Q9BZG1	S171	VGSKKDLSTPAQYAL	85 / 7 AA	29
Phosphosite 8:	PDZRN3	Q9UPQ7	S910	VSMCKDLSSPTPSEP	75 / 8 AA	120
Phosphosite 9:	PDZRN3	Q9UPQ7	S911	SMCKDLSSPTPSEPR	75 / 8 AA	120
Phosphosite 10:	ZSCAN20	P17040	S862	SISKDLNSPGPHSTN	55 / 9 AA	118
Phosphosite 11:	AP3D1	O14617	S122	QIRKDLSSPSQYDTG	85 / 7 AA	130
Phosphosite 12:	AP3D1	O14617	S121	NQIRKDLSSPSQYDT	85 / 7 AA	130
Phosphosite 13:	DDX20	Q9UHI6	S48	RTAQDLSSPRTRTGD	66 / 9 AA	92
Phosphosite 14:	KIAA0754	O94854	S1133	LTPEELSSPAASVPT	75 / 8 AA	135
Phosphosite 15:	EMILIN1	Q9Y6C2	T813	QLSLKDLTGPAGEAG	62 / 8 AA	107
Phosphosite 16:	MCM4	P33991	S61	SPGVDLQSPAAQDVL	75 / 8 AA	97
Phosphosite 17:	CNGB3	Q9NQW8	S156	KLVEGDLSSPEASPQ	85 / 7 AA	92
Phosphosite 18:	SOLO	Q8TER5	S931	ALALDLGSPAALREW	85 / 7 AA	165
Phosphosite 19:	TGFB2	P61812	T178	ILKSKDLTSPTQRYI	71 / 7 AA	48
Phosphosite 20:	ZBP1	Q9H171	S85	PAELALSSPAERPQQ	85 / 7 AA	46