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:	S266
P-Site Sequence:	QDSPRNFSPSASAHF
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	S266	QDSPRNFSPSASAHF	100 / 9 AA	284
Phosphosite 1:	MAST2	Q6P0Q8	S209	LDSPRNFSPNAPAHF	87 / 8 AA	196
Phosphosite 2:	HIVEP2	P31629	S2040	SSSPRDFSPSSHHSS	75 / 8 AA	269
Phosphosite 3:	MAST1	Q9Y2H9	S69	LDSPRNFSPNTPAHF	75 / 8 AA	171
Phosphosite 4:	FAM127A	O15255	S191	GRPPRDLSPSARPIS	75 / 8 AA	22
Phosphosite 5:	MAST4	O15021	S268	SPRNFSPSASAHFSF	100 / 7 AA	284
Phosphosite 6:	LMO7	Q8WWI1	S1593	SPTPRSHSPSASQSG	77 / 9 AA	193
Phosphosite 7:	KHS2	Q8IVH8	S661	RILPRKFSVSAKIPE	75 / 8 AA	101
Phosphosite 8:	ATG9B	Q674R7	S783	LLPPRDLSPTAPCPA	62 / 8 AA	101
Phosphosite 9:	TTC28	Q96AY4	S2307	SKSPRNMSPSSGHQS	85 / 7 AA	271
Phosphosite 10:	CREBBP	Q92793	S2063	VQPPRSISPSALQDL	75 / 8 AA	265
Phosphosite 11:	GUCA1A	P43080	S49	FFGLKNLSPSASQYV	75 / 8 AA	23
Phosphosite 12:	KIAA1967	Q8N163	S19	LPGGRNFSGTASTSL	75 / 8 AA	103
Phosphosite 13:	PDGFC	Q9NRA1	S256	SCTPRNFSVSIREEL	85 / 7 AA	39
Phosphosite 14:	ATP5J2	P56134	S36	WILMRDFSPSGIFGA	71 / 7 AA	11
Phosphosite 15:	PCDH15	Q96QU1	S1741	FAHPPNISPSACPLP	66 / 9 AA	216
Phosphosite 16:	WHSC1L1	Q9BZ95	S107	FGAVRNFSPTDYYHS	83 / 6 AA	162
Phosphosite 17:	GPBP1	Q86WP2	S260	KSTAKNFSPSTNSVK	55 / 9 AA	53
Phosphosite 18:	POLA2	Q14181	S152	LLSPSSFSPSATPSQ	66 / 9 AA	66
Phosphosite 19:	VGF	O15240	S170	LQELRDFSPSSAKRQ	83 / 6 AA	67
Phosphosite 20:	VWDE	Q8N2E2	S1196	CVSDRNFSPGSGVYL	62 / 8 AA	177