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:	S1254
P-Site Sequence:	KSRMVRRSKKSKKKE
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	S1254	KSRMVRRSKKSKKKE	100 / 9 AA	284
Phosphosite 1:	MAST2	Q6P0Q8	S1214	KAKMARRSKRSRGKD	66 / 9 AA	196
Phosphosite 2:	MAST3	O60307	S1060	KGRMARRSKRSRRRE	66 / 9 AA	143
Phosphosite 3:	INSM1	Q01101	S10	RGFLVKRSKKSTPVS	75 / 8 AA	53
Phosphosite 4:	ER-alpha	P03372	S301	SPLMIKRSKKNSLAL	62 / 8 AA	66
Phosphosite 5:	ANKHD1	Q8IWZ3	S1697	WKEVVRRSKKLSVPA	85 / 7 AA	270
Phosphosite 6:	ANKRD17	O75179	S1727	WKEVVRRSKKVSVPS	85 / 7 AA	274
Phosphosite 7:	HLA-DPB1	P04440	S250	GIFMHRRSKKVQRGS	85 / 7 AA	29
Phosphosite 8:	DOCK7	Q96N67	S1414	RQEMVRRSRGQLGTY	83 / 6 AA	243
Phosphosite 9:	DOCK6	Q96HP0	S1339	RQEMVRRSRERSPFG	83 / 6 AA	230
Phosphosite 10:	SRCAP	Q6ZRS2	S2382	GGGTHRRSKKAKAPE	85 / 7 AA	344
Phosphosite 11:	SRBD1	Q8N5C6	T130	QPHTVRRTKKLKVEE	75 / 8 AA	112
Phosphosite 12:	CHD-2	O14647	S112	DVYGVRRSNRSRQEP	62 / 8 AA	211
Phosphosite 13:	ZNF608	Q9ULD9	S109	SKSKVKRSKTSKDAN	66 / 9 AA	162
Phosphosite 14:	PRPF4B	Q13523	S376	PLLNDRRSKQSKSPS	85 / 7 AA	117
Phosphosite 15:	LHX9	Q9NQ69	S41	MEEMERRSKTEARLA	83 / 6 AA	44
Phosphosite 16:	STAG2	Q8N3U4	S1075	STVRSKKSKPSTGKR	100 / 6 AA	146
Phosphosite 17:	STAG2	Q8N3U4	S1072	SRGSTVRSKKSKPST	100 / 6 AA	146
Phosphosite 18:	PRDM7	Q9NQW5	S486	TKPKVKRSKKGPNS_	62 / 8 AA	56
Phosphosite 19:	MCM3AP	O60318	S470	QRIFTRRSKKLAVVH	71 / 7 AA	218