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:	SMAD3
Human P-Site:	S70
P-Site Sequence:	KCITIPRSLDGRLQV
UniProt:	P84022
Intern. Prot. ID:	IPI00024305

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	SMAD3	P84022	S70	KCITIPRSLDGRLQV	100 / 9 AA	48
Phosphosite 1:	Smad5	Q99717	S71	KCVTIPRSLDGRLQV	100 / 9 AA	52
Phosphosite 2:	SMAD1	Q15797	S70	NCVTIPRSLDGRLQV	100 / 9 AA	52
Phosphosite 3:	Smad8	O15198	S74	KCVTIPRSLDGRLQV	100 / 9 AA	52
Phosphosite 4:	Smad4	Q13485	T77	KCVTIQRTLDGRLQV	77 / 9 AA	60
Phosphosite 5:	EPB41L1	Q9H4G0	S430	KRYTMSRSLDGAEFS	75 / 8 AA	99
Phosphosite 6:	NT5C1B	Q96P26	S188	ASPQLPRSLDSRPPT	75 / 8 AA	69
Phosphosite 7:	CPZ	Q66K79	S216	RTYSIGRSFDGRELL	66 / 9 AA	74
Phosphosite 8:	EPB41L3	Q9Y2J2	S443	KRYTMSRSLDGEVGT	75 / 8 AA	121
Phosphosite 9:	GPR123	Q86SQ6	S1162	YAYHIPSSLDGSPRS	75 / 8 AA	137
Phosphosite 10:	GPR123	Q86SQ6	S1161	EYAYHIPSSLDGSPR	85 / 7 AA	137
Phosphosite 11:	L3MBTL2	Q969R5	S79	LSPGTPRSLDGSGSE	85 / 7 AA	79
Phosphosite 12:	HS3ST6	Q96QI5	T144	YRSLMPRTLDGQITM	62 / 8 AA	37
Phosphosite 13:	LIG1	P18858	S445	EARFIARSLSGRLRL	75 / 8 AA	102
Phosphosite 14:	ZBTB8B	Q8NAP8	S303	ADHHFSRSLEGRPEG	62 / 8 AA	56
Phosphosite 15:	OLFM2	O95897	S102	GMETLMRSLDARLRA	66 / 9 AA	51
Phosphosite 16:	Smad2	Q15796	S110	SFSEQTRSLDGRLQV	100 / 6 AA	52
Phosphosite 17:	MCM6	Q14566	S223	PRGSIPRSLEVILRA	71 / 7 AA	93
Phosphosite 18:	GluR4	P48058	S617	GCDISPRSLSGRIVG	85 / 7 AA	101
Phosphosite 19:	GluR3	P42263	S627	GCDISPRSLSGRIVG	85 / 7 AA	101
Phosphosite 20:	GluR2	P42262	S616	GCDISPRSLSGRIVG	85 / 7 AA	99