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:	S464
P-Site Sequence:	GSPSVRCSSMS____
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	S464	GSPSVRCSSMS____	100 / 8 AA	52
Phosphosite 1:	Smad2	Q15796	S465	SPSVRCSSMS_____	100 / 7 AA	52
Phosphosite 2:	MRPL45	Q9BRJ2	S200	HVVQVRCSSMMNQGN	100 / 6 AA	35
Phosphosite 3:	SMAD3	P84022	S422	GSPSIRCSSVS____	75 / 8 AA	48
Phosphosite 4:	SEC16A	O15027	S2117	GELSRCSSMSSLSRE	100 / 6 AA	234
Phosphosite 5:	SEC16A	O15027	S2116	GGELSRCSSMSSLSR	100 / 6 AA	234
Phosphosite 6:	PLXNB3	Q9ULL4	S1675	EGAKVRCSSLREREP	83 / 6 AA	207
Phosphosite 7:	STARD9	Q9P2P6	S3427	SNVARCSSMDNGLED	83 / 6 AA	507
Phosphosite 8:	PLXNB3	Q9ULL4	S1676	GAKVRCSSLREREPA	83 / 6 AA	207
Phosphosite 9:	STK38	Q15208	S10	MTGSTPCSSMSNHTK	75 / 8 AA	54
Phosphosite 10:	STARD9	Q9P2P6	S3426	LSNVARCSSMDNGLE	100 / 5 AA	507
Phosphosite 11:	C12orf41	Q9H9L4	S312	FVDDVRCSNQSLPMT	71 / 7 AA	55
Phosphosite 12:	SMAD3	P84022	S423	SPSIRCSSVS_____	71 / 7 AA	48
Phosphosite 13:	ADAMTS10	Q9H324	T1031	RQRSVRCTSHTGQAS	83 / 6 AA	121
Phosphosite 14:	DEPDC6	Q8TB45	S279	IVSAVRRSSMSSCGS	85 / 7 AA	46
Phosphosite 15:	PCNXL3	Q9H6A9	S135	STPPVRCSSQHSVFG	71 / 7 AA	222
Phosphosite 16:	FRYL	O94915	S889	SAGSVRCSPPETLAS	83 / 6 AA	340
Phosphosite 17:	CLPS	P04118	S58	LGLARCTSMASENSE	57 / 7 AA	12
Phosphosite 18:	USP31	Q70CQ4	S1198	GAGKHVRSSSMASLR	71 / 7 AA	147
Phosphosite 19:	CLPS	P04118	T57	ALGLARCTSMASENS	57 / 7 AA	12
Phosphosite 20:	ARHGEF17	Q96PE2	S1330	KSGSLRRSSMSLYTA	75 / 8 AA	222