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:	S268
P-Site Sequence:	SPRNFSPSASAHFSF
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	S268	SPRNFSPSASAHFSF	100 / 9 AA	284
Phosphosite 1:	MAST4	O15021	S266	QDSPRNFSPSASAHF	100 / 7 AA	284
Phosphosite 2:	SPERT	Q8NA61	S150	QSPYFSPSASFHHKL	77 / 9 AA	52
Phosphosite 3:	MAST4	O15021	S270	RNFSPSASAHFSFAR	100 / 7 AA	284
Phosphosite 4:	INTS5	Q6P9B9	S602	LGAHFGESASAHLSD	66 / 9 AA	108
Phosphosite 5:	GUCA1A	P43080	S49	FFGLKNLSPSASQYV	85 / 7 AA	23
Phosphosite 6:	VCAN	P13611	S440	PWDMDDYSPSASGPL	71 / 7 AA	373
Phosphosite 7:	VCAN	P13611	S442	DMDDYSPSASGPLGK	62 / 8 AA	373
Phosphosite 8:	MAST1	Q9Y2H9	T72	PRNFSPNTPAHFSFA	62 / 8 AA	171
Phosphosite 9:	CH25H	O95992	S80	IHPDFSPSAQQLLPC	83 / 6 AA	32
Phosphosite 10:	MRVI1	Q9Y6F6	S191	VSPNLSPSASPTSSR	75 / 8 AA	96
Phosphosite 11:	KIAA0240	Q6AI39	S1042	ELDFPNFSPMASQEN	85 / 7 AA	115
Phosphosite 12:	MUC6	Q6W4X9	S2087	LSSSFSPSPSAPSTV	66 / 9 AA	252
Phosphosite 13:	LOC73072	Q9H6K5	S306	FPGQAPFSPSASLPM	100 / 6 AA	60
Phosphosite 14:	MRVI1	Q9Y6F6	S189	SAVSPNLSPSASPTS	85 / 7 AA	96
Phosphosite 15:	DOT1L	Q8TEK3	S1547	NHAVPSASAHPFGAR	100 / 6 AA	185
Phosphosite 16:	SPERT	Q8NA61	S148	RLQSPYFSPSASFHH	85 / 7 AA	52
Phosphosite 17:	CH25H	O95992	S78	YKIHPDFSPSAQQLL	83 / 6 AA	32
Phosphosite 18:	DCHS2	Q6V1P9	S2874	EGMTPNFSPSLSLLT	85 / 7 AA	322
Phosphosite 19:	LOC73072	Q9H6K5	S308	GQAPFSPSASLPMSP	100 / 6 AA	60
Phosphosite 20:	TBX15	Q96SF7	S362	GTPSPSASSHLLSPS	85 / 7 AA	66