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:	SMAD1
Human P-Site:	T66
P-Site Sequence:	GQPSNCVTIPRSLDG
UniProt:	Q15797
Intern. Prot. ID:	IPI00019549

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	SMAD1	Q15797	T66	GQPSNCVTIPRSLDG	100 / 9 AA	52
Phosphosite 1:	Smad5	Q99717	T67	GQPSKCVTIPRSLDG	88 / 9 AA	52
Phosphosite 2:	Smad8	O15198	T70	GQPSKCVTIPRSLDG	88 / 9 AA	52
Phosphosite 3:	SMAD3	P84022	T66	NVNTKCITIPRSLDG	66 / 9 AA	48
Phosphosite 4:	Smad4	Q13485	T73	AHPSKCVTIQRTLDG	66 / 9 AA	60
Phosphosite 5:	HECW1	Q76N89	T62	GGPHDGVTIPRSTSD	75 / 8 AA	180
Phosphosite 6:	COMP	P49747	T294	CRKDNCVTVPNSGQE	75 / 8 AA	83
Phosphosite 7:	TRAK1	Q9UPV9	S443	SLLSSCVSTPRSSFY	66 / 9 AA	106
Phosphosite 8:	GPAM	Q9HCL2	T545	QLLGNCVTITHTSRN	55 / 9 AA	94
Phosphosite 9:	polycystin 1	P98161	T2324	PRGSSTVTIPRERLA	75 / 8 AA	463
Phosphosite 10:	IBTK	Q9P2D0	T327	PNGEKCVTAPRQVSA	71 / 7 AA	151
Phosphosite 11:	PIK3CA	P42336	T560	SHRHYCVTIPEILPK	83 / 6 AA	124
Phosphosite 12:	TCF19	Q9Y242	T135	PQDFAAITIPRSRGE	83 / 6 AA	37
Phosphosite 13:	TrpC5	Q9UL62	T167	LLVQKRVTIPRPHQI	62 / 8 AA	111
Phosphosite 14:	CISH	Q9NSE2	S146	RLDSNCLSRPRILAF	62 / 8 AA	29
Phosphosite 15:	SLC7A8	Q9UHI5	T99	CYAELGVTIPKSGGD	83 / 6 AA	58
Phosphosite 16:	CXXC6	Q8NFU7	S834	QPGFNCSSIPHSSHS	62 / 8 AA	235
Phosphosite 17:	KIAA0564	A3KMH1	T1418	PKQSNCVTLLDTNQV	83 / 6 AA	211
Phosphosite 18:	PDE4DIP	Q5VU43	S736	LTAKEDVSIPRSTLG	83 / 6 AA	130
Phosphosite 19:	TMED3	Q9Y3Q3	T146	QMESACVTIHEALKT	71 / 7 AA	25
Phosphosite 20:	SMAD1	Q15797	S62	LSCPGQPSNCVTIPR	100 / 5 AA	52