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:	Smad2
Human P-Site:	S227
P-Site Sequence:	TPPPGYISEDGETSD
UniProt:	Q15796
Intern. Prot. ID:	IPI00019548

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	Smad2	Q15796	S227	TPPPGYISEDGETSD	100 / 9 AA	52
Phosphosite 1:	SMAD3	P84022	S186	TPPPGYLSEDGETSD	88 / 9 AA	48
Phosphosite 2:	Smad2	Q15796	Y225	PETPPPGYISEDGET	100 / 7 AA	52
Phosphosite 3:	FLCN	Q8NFG4	S97	AGHPGYISHDKETSI	77 / 9 AA	64
Phosphosite 4:	SMAD3	P84022	Y184	PETPPPGYLSEDGET	85 / 7 AA	48
Phosphosite 5:	TRIOBP	Q9H2D6	S2107	HIPPGYISQEACERS	62 / 8 AA	261
Phosphosite 6:	FLCN	Q8NFG4	Y95	LAAGHPGYISHDKET	85 / 7 AA	64
Phosphosite 7:	PLCL4	O75038	S478	KKLPANISEDAEEGE	66 / 9 AA	68
Phosphosite 8:	F2R	P25116	S89	KQLPAFISEDASGYL	62 / 8 AA	47
Phosphosite 9:	TRIOBP	Q9H2D6	Y2105	DGHIPPGYISQEACE	71 / 7 AA	261
Phosphosite 10:	FNDC3B	Q53EP0	Y85	PIHVPPGYISQVIED	83 / 6 AA	133
Phosphosite 11:	DDX3Y	O15523	S85	RGKPGYFSERGSGSR	75 / 8 AA	73
Phosphosite 12:	FNDC3B	Q53EP0	S87	HVPPGYISQVIEDST	83 / 6 AA	133
Phosphosite 13:	FBXL18	Q96ME1	Y241	YARLAPGYINQEVVR	57 / 7 AA	88
Phosphosite 14:	ANKRD11	Q6UB99	S1096	KAFPGIISEDFSEKK	85 / 7 AA	298
Phosphosite 15:	IGSF10	Q6WRI0	S523	KVRAPYVSEDGRILI	83 / 6 AA	291
Phosphosite 16:	AREG	P15514	Y96	NEPQIPGYIVDDSVR	71 / 7 AA	28
Phosphosite 17:	CUBN	O60494	Y301	TGWQGNGYICEDINE	83 / 6 AA	399
Phosphosite 18:	C9orf50	Q5SZB4	Y356	STQKTQGYLSEDTSM	71 / 7 AA	48
Phosphosite 19:	USP1	O94782	Y321	PPKIIPKYISENESP	71 / 7 AA	88
Phosphosite 20:	USP1	O94782	S323	KIIPKYISENESPRP	71 / 7 AA	88