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:	S38
P-Site Sequence:	ASSPGASSAESSSGS
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	S38	ASSPGASSAESSSGS	100 / 9 AA	284
Phosphosite 1:	MAST4	O15021	S37	AASSPGASSAESSSG	100 / 8 AA	284
Phosphosite 2:	Sos1	Q07889	S484	QPRLPGASNAEYRLK	85 / 7 AA	152
Phosphosite 3:	UNC45A	Q9H3U1	S20	PATPGASSVEQLRKE	85 / 7 AA	103
Phosphosite 4:	CASZ1	Q86V15	S1365	GCSPGAMSSESSTMD	77 / 9 AA	190
Phosphosite 5:	UNC45A	Q9H3U1	S19	RPATPGASSVEQLRK	85 / 7 AA	103
Phosphosite 6:	KCTD18	Q6PI47	S351	QASPGAASAENGGTH	75 / 8 AA	47
Phosphosite 7:	C6orf166	Q53H80	S130	PASPGTSSAASSPLK	77 / 9 AA	22
Phosphosite 8:	SIGLEC10	Q96LC7	S630	PLPPGAPSPESKKNQ	75 / 8 AA	77
Phosphosite 9:	ELF1	P32519	S167	YADSPGASSPEQPKR	85 / 7 AA	67
Phosphosite 10:	ELF1	P32519	S168	ADSPGASSPEQPKRK	85 / 7 AA	67
Phosphosite 11:	SYNJ1	O43426	S1080	SRTPGPPSAQSSPID	66 / 9 AA	173
Phosphosite 12:	MMP15	P51511	S589	GAEPGADSAEGDVGD	75 / 8 AA	76
Phosphosite 13:	KIAA1751	Q9C0B2	S445	QGDPGASSEEETLAE	85 / 7 AA	87
Phosphosite 14:	ARHGAP22	Q7Z5H3	S518	AWSGASSSESSVGGS	87 / 8 AA	77
Phosphosite 15:	VWA1	Q6PCB0	S311	GEAGPGASGPESGAG	75 / 8 AA	47
Phosphosite 16:	ARHGAP22	Q7Z5H3	S517	MAWSGASSSESSVGG	87 / 8 AA	77
Phosphosite 17:	OSBPL6	Q9BZF3	T204	HIFPSTSTAESSPAA	66 / 9 AA	106
Phosphosite 18:	GRAMD3	Q96HH9	S230	GNSPNPSSAENSFRA	66 / 9 AA	48
Phosphosite 19:	TNFRSF13C	Q96RJ3	S112	QRRLRGASSAEAPDG	85 / 7 AA	19
Phosphosite 20:	MC5R	P33032	S227	AALPGASSARQRTSM	100 / 6 AA	37