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:	Smad4
Human P-Site:	Y353
P-Site Sequence:	PIVTVDGYVDPSGGD
UniProt:	Q13485
Intern. Prot. ID:	IPI00013404

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	Smad4	Q13485	Y353	PIVTVDGYVDPSGGD	100 / 9 AA	60
Phosphosite 1:	F8	P00451	Y256	KMHTVNGYVNRSLPG	66 / 9 AA	267
Phosphosite 2:	TYRP1	P17643	Y362	FRNTVEGYSDPTGKY	66 / 9 AA	61
Phosphosite 3:	Smad5	Q99717	T300	SVLVDGFTDPSNNKS	75 / 8 AA	52
Phosphosite 4:	SMAD1	Q15797	T300	SVLVDGFTDPSNNKN	75 / 8 AA	52
Phosphosite 5:	Smad2	Q15796	T303	SLTVDGFTDPSNSER	75 / 8 AA	52
Phosphosite 6:	SMAD3	P84022	T261	SMTVDGFTDPSNSER	75 / 8 AA	48
Phosphosite 7:	REV1	Q9UBZ9	Y59	VAIYVNGYTDPSAEE	75 / 8 AA	138
Phosphosite 8:	STAT5B	P51692	Y699	TAKAVDGYVKPQIKQ	75 / 8 AA	90
Phosphosite 9:	STAT5A	P42229	Y694	LAKAVDGYVKPQIKQ	75 / 8 AA	91
Phosphosite 10:	Smad8	O15198	T302	SVLIDGFTDPSNNRN	62 / 8 AA	52
Phosphosite 11:	PHKA2	P46019	Y1103	HGLSIDGYVLPSSTT	66 / 9 AA	138
Phosphosite 12:	TNNC2	P02585	Y110	FDRNADGYIDPEELA	62 / 8 AA	18
Phosphosite 13:	MARK1	Q9P0L2	Y24	NHTSVDGYTEPHIQP	62 / 8 AA	89
Phosphosite 14:	MYNN	Q9NPC7	Y598	LRSTVNGYSEPQLIF	62 / 8 AA	69
Phosphosite 15:	factor V	P12259	Y237	LMYTVNGYVNGTMPD	71 / 7 AA	252
Phosphosite 16:	EDDM3A	Q14507	Y132	FHCGVDGYVDNIEDL	100 / 6 AA	18
Phosphosite 17:	FAM38A	Q92508	Y778	LVCTVKGYYDPKEMM	75 / 8 AA	233
Phosphosite 18:	Putative synaptogyrin-2 like protein	A8MWL6	Y180	VDDFIQNYVDPSPDP	62 / 8 AA	25
Phosphosite 19:	EDDM3B	P56851	Y132	FHCSMDGYVDSIEDL	62 / 8 AA	18
Phosphosite 20:	SETD2	Q9BYW2	Y2176	PGYPMQAYVDPSNPN	62 / 8 AA	288