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:	S950
P-Site Sequence:	STETLSWSSEYSEMQ
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	S950	STETLSWSSEYSEMQ	100 / 9 AA	284
Phosphosite 1:	MAST4	O15021	S948	LPSTETLSWSSEYSE	100 / 7 AA	284
Phosphosite 2:	URB1	O60287	S1178	SGELLWSSEYVRGLG	85 / 7 AA	254
Phosphosite 3:	URB1	O60287	S1177	QSGELLWSSEYVRGL	85 / 7 AA	254
Phosphosite 4:	GIT2	Q14161	S570	FPSTLSWSRDESARR	66 / 9 AA	85
Phosphosite 5:	GPAM	Q9HCL2	S20	VSYLPHSSEYSVGRC	75 / 8 AA	94
Phosphosite 6:	MYO7B	Q6PIF6	S1316	QVLRGVWSGEYSFEK	83 / 6 AA	242
Phosphosite 7:	GPAM	Q9HCL2	S19	DVSYLPHSSEYSVGR	75 / 8 AA	94
Phosphosite 8:	LENG8	Q96PV6	Y17	STDWSSQYSMVAGAG	83 / 6 AA	86
Phosphosite 9:	GIT2	Q14161	S568	PSFPSTLSWSRDESA	71 / 7 AA	85
Phosphosite 10:	SFRS14	Q8IX01	S159	VSQESSWSQEYSFGP	85 / 7 AA	120
Phosphosite 11:	LENG8	Q96PV6	S15	QRSTDWSSQYSMVAG	83 / 6 AA	86
Phosphosite 12:	LENG8	Q96PV6	S14	DQRSTDWSSQYSMVA	83 / 6 AA	86
Phosphosite 13:	ZNF396	Q96N95	S43	PDSSLHWSSSYSPET	66 / 9 AA	39
Phosphosite 14:	MRPS24	Q96EL2	S18	GPRVLSWSRELPCAW	55 / 9 AA	19
Phosphosite 15:	RIPK3	Q9Y572	S268	LMQLCWSSEPKDRPS	83 / 6 AA	57
Phosphosite 16:	ZNF396	Q96N95	S44	DSSLHWSSSYSPETF	75 / 8 AA	39
Phosphosite 17:	CNTN5	O94779	S690	TESTATLSWSPAADN	71 / 7 AA	121
Phosphosite 18:	CNTN5	O94779	S692	STATLSWSPAADNHS	71 / 7 AA	121
Phosphosite 19:	UBE2Q2	Q8WVN8	S314	LLTKQGWSSAYSIES	55 / 9 AA	43
Phosphosite 20:	UBE2Q1	Q7Z7E8	S361	LLTKQGWSSAYSIES	55 / 9 AA	46