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:	Smad5
Human P-Site:	S431
P-Site Sequence:	YHRQDVTSTPCWIEI
UniProt:	Q99717
Intern. Prot. ID:	IPI00017730

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	Smad5	Q99717	S431	YHRQDVTSTPCWIEI	100 / 9 AA	52
Phosphosite 1:	Smad2	Q15796	S433	YRRQTVTSTPCWIEL	88 / 9 AA	52
Phosphosite 2:	SMAD3	P84022	S391	YRRQTVTSTPCWIEL	88 / 9 AA	48
Phosphosite 3:	Smad5	Q99717	T430	EYHRQDVTSTPCWIE	100 / 8 AA	52
Phosphosite 4:	SMAD1	Q15797	T430	EYHRQDVTSTPCWIE	100 / 8 AA	52
Phosphosite 5:	Smad8	O15198	T432	EYHRQDVTSTPCWIE	100 / 8 AA	52
Phosphosite 6:	Smad2	Q15796	T434	RRQTVTSTPCWIELH	100 / 7 AA	52
Phosphosite 7:	SMAD3	P84022	T392	RRQTVTSTPCWIELH	100 / 7 AA	48
Phosphosite 8:	Smad2	Q15796	T432	EYRRQTVTSTPCWIE	87 / 8 AA	52
Phosphosite 9:	SMAD3	P84022	T390	EYRRQTVTSTPCWIE	87 / 8 AA	48
Phosphosite 10:	MEKK2	Q9Y2U5	T524	GMKSVTGTPYWMSPE	71 / 7 AA	70
Phosphosite 11:	MEKK3	Q99759	T530	GMRSVTGTPYWMSPE	71 / 7 AA	71
Phosphosite 12:	UCHL3	P15374	S82	SQGQDVTSSVYFMKQ	55 / 9 AA	26
Phosphosite 13:	MCL1	Q07820	T92	EVPDVTATPARLLFF	62 / 8 AA	37
Phosphosite 14:	ERCC5	P28715	S324	MSFDVKSSPCEKLKT	71 / 7 AA	133
Phosphosite 15:	ERCC5	P28715	S323	GMSFDVKSSPCEKLK	71 / 7 AA	133
Phosphosite 16:	Smad4	Q13485	T521	PRQSIKETPCWIEIH	57 / 7 AA	60
Phosphosite 17:	FSTL5	Q8N475	T694	IGFNSDVTGTPYVSP	71 / 7 AA	96
Phosphosite 18:	FSTL5	Q8N475	T696	FNSDVTGTPYVSPDG	71 / 7 AA	96
Phosphosite 19:	INPP4A	Q96PE3	S595	PFCDVPSSPCPSTMP	71 / 7 AA	110
Phosphosite 20:	MYO15A	Q9UKN7	S3164	TRFLQDVSRTPGLPF	71 / 7 AA	395