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:	S1588
P-Site Sequence:	PKAVERSSTFENKAS
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	S1588	PKAVERSSTFENKAS	100 / 9 AA	284
Phosphosite 1:	MAST4	O15021	T1589	KAVERSSTFENKASM	100 / 8 AA	284
Phosphosite 2:	Smad5	Q99717	S321	LSNVNRNSTIENTRR	66 / 9 AA	52
Phosphosite 3:	SMAD1	Q15797	S321	LSNVNRNSTIENTRR	66 / 9 AA	52
Phosphosite 4:	Smad8	O15198	S323	LSNVNRNSTIENTRR	66 / 9 AA	52
Phosphosite 5:	NPHP3	Q7Z494	T160	QAMERAATFEHDRDK	62 / 8 AA	151
Phosphosite 6:	DUSP11	O75319	S216	NSSVPRSSDFEDSAH	66 / 9 AA	39
Phosphosite 7:	GFI1	Q99684	S84	GSVCERSSEFEDFWR	66 / 9 AA	45
Phosphosite 8:	GPS1	Q13098	T434	RDVDQRSTTFEKSLL	62 / 8 AA	56
Phosphosite 9:	GPS1	Q13098	T435	DVDQRSTTFEKSLLM	62 / 8 AA	56
Phosphosite 10:	ANKRD12	Q6UB98	T632	KDEDHSPTFENSDCT	62 / 8 AA	236
Phosphosite 11:	SERPINB9	P50453	S245	ELSTVEKSLTFEKLT	75 / 8 AA	42
Phosphosite 12:	RAB32	Q13637	T113	FDISRSSTFEAVLKW	100 / 6 AA	25
Phosphosite 13:	GPS1	Q13098	S433	ARDVDQRSTTFEKSL	71 / 7 AA	56
Phosphosite 14:	HESX1	Q9UBX0	S85	PMPEERASKYENYFS	62 / 8 AA	21
Phosphosite 15:	CAPN2	P17655	T464	RARERSDTFINLREV	75 / 8 AA	80
Phosphosite 16:	DVL3	Q92997	S233	VSRIERSSSFSSITD	71 / 7 AA	78
Phosphosite 17:	C2orf67	A0AUZ9	S944	KDQVERSSTAFHGEI	100 / 6 AA	112
Phosphosite 18:	DVL3	Q92997	S232	KVSRIERSSSFSSIT	71 / 7 AA	78
Phosphosite 19:	C2orf67	A0AUZ9	S943	KKDQVERSSTAFHGE	100 / 6 AA	112
Phosphosite 20:	ISG15	P05161	S94	RNNKGRSSTYEVRLT	83 / 6 AA	18