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:	S1553
P-Site Sequence:	GFPEKQESHQKSHGP
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	S1553	GFPEKQESHQKSHGP	100 / 9 AA	284
Phosphosite 1:	VPS13C	Q709C8	S3195	QIEFKQSSHQRSLRA	75 / 8 AA	422
Phosphosite 2:	CSPG3	O14594	S425	ILEEKQESQQTLSPT	85 / 7 AA	143
Phosphosite 3:	HEFL	Q9NQ75	S621	PPQRETESHQKSTPS	100 / 6 AA	87
Phosphosite 4:	CCDC88C	Q9P219	S1825	PEACKQESPQKLGAP	85 / 7 AA	228
Phosphosite 5:	RIF1	Q5UIP0	S1437	ESQDKENSHQKKERR	62 / 8 AA	274
Phosphosite 6:	FIP1L1	Q6UN15	T539	RHREKEETRHKSSRS	55 / 9 AA	67
Phosphosite 7:	RGS14	O43566	S284	FVSSKSESHRKSLGS	75 / 8 AA	61
Phosphosite 8:	TTC21B	Q7Z4L5	S1096	NSTEKQESVQLAVRT	85 / 7 AA	151
Phosphosite 9:	MTUS1	Q9ULD2	S1094	LLSEKQESLEKQIND	75 / 8 AA	141
Phosphosite 10:	RFWD3	Q6PCD5	S266	KTLPKQPSPQKSEPL	75 / 8 AA	85
Phosphosite 11:	ARID1B	Q8NFD5	S1744	EDSEKTESDEKSSIA	66 / 9 AA	236
Phosphosite 12:	STEP	P54829	S560	SLYEKQLSHQSPE__	85 / 7 AA	61
Phosphosite 13:	PCDHGA6	Q9Y5G7	S784	DTLINQESYEKSEPL	62 / 8 AA	101
Phosphosite 14:	APOB48R	Q0VD83	S162	QAQERQESHEQEVNR	71 / 7 AA	115
Phosphosite 15:	LRRC47	Q8N1G4	S280	EGSEKEESRRKRRER	62 / 8 AA	63
Phosphosite 16:	MX2	P20592	S396	LEGQIRESHQKATEE	71 / 7 AA	82
Phosphosite 17:	MED26	O95402	S347	CWLEQPESHQRLAGP	62 / 8 AA	65
Phosphosite 18:	LEKR1	Q6ZMV7	S72	ERELMLISHQKSIEQ	62 / 8 AA	45
Phosphosite 19:	ANK3	Q12955	S1144	VSRIKQESNQIGPEG	83 / 6 AA	480
Phosphosite 20:	MYO5B	Q9ULV0	S320	TLLGVKESHQMSIFK	83 / 6 AA	214