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:	Smad8
Human P-Site:	Y406
P-Site Sequence:	HHGFEVVYELTKMCT
UniProt:	O15198
Intern. Prot. ID:	IPI00005223

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	Smad8	O15198	Y406	HHGFEVVYELTKMCT	100 / 9 AA	52
Phosphosite 1:	Smad5	Q99717	Y404	NHGFEAVYELTKMCT	88 / 9 AA	52
Phosphosite 2:	SMAD1	Q15797	Y404	NHGFETVYELTKMCT	88 / 9 AA	52
Phosphosite 3:	Smad2	Q15796	Y406	NQGFEAVYQLTRMCT	66 / 9 AA	52
Phosphosite 4:	SMAD3	P84022	Y364	NQGFEAVYQLTRMCT	66 / 9 AA	48
Phosphosite 5:	SMAD1	Q15797	T402	SVNHGFETVYELTKM	85 / 7 AA	52
Phosphosite 6:	NDUFS3	O75489	Y130	QNRFEIVYNLLSLRF	71 / 7 AA	30
Phosphosite 7:	GCNT4	Q9P109	S241	KSNFELVSELKKLNG	66 / 9 AA	53
Phosphosite 8:	PGAM2	P15259	Y218	PTGIPIVYELNKELK	55 / 9 AA	29
Phosphosite 9:	CYB5A	P00167	Y35	LILHHKVYDLTKFLE	83 / 6 AA	15
Phosphosite 10:	TSN	Q15631	Y210	KKVEEVVYDLSIRGF	71 / 7 AA	26
Phosphosite 11:	ANGPTL6	Q8NI99	Y335	WLGLEPVYQLTSRGD	62 / 8 AA	52
Phosphosite 12:	CYB5A	P00167	T38	HHKVYDLTKFLEEHP	83 / 6 AA	15
Phosphosite 13:	AKAP13	Q12802	Y2000	VKRQEVIYELMQTEF	62 / 8 AA	308
Phosphosite 14:	PGAM4	Q8N0Y7	Y218	PTGIPIVYELDKNLK	55 / 9 AA	29
Phosphosite 15:	PGAM1	P18669	Y218	PTGIPIVYELDKNLK	55 / 9 AA	29
Phosphosite 16:	CELF6	Q96J87	Y73	FEEFGRIYELTVLKD	62 / 8 AA	50
Phosphosite 17:	CELF5	Q8N6W0	Y72	FEQFGRIYELTVLKD	62 / 8 AA	52
Phosphosite 18:	CREB3L4	Q8TEY5	Y117	PMLYEVVYEAGALER	83 / 6 AA	43
Phosphosite 19:	RanBP2	P49792	Y2636	DDDVLIVYELTPTAE	83 / 6 AA	358
Phosphosite 20:	PECR	Q9BY49	Y179	GAARAGVYNLTKSLA	83 / 6 AA	33