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:	S456
P-Site Sequence:	KVLTQMGSPHNPISS
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	S456	KVLTQMGSPHNPISS	100 / 9 AA	52
Phosphosite 1:	Smad8	O15198	S458	KVLTQMGSPHNPISS	100 / 9 AA	52
Phosphosite 2:	Smad5	Q99717	S456	KVLTQMGSPLNPISS	88 / 9 AA	52
Phosphosite 3:	SECISBP2	Q96T21	T503	RRMSQMKTPHNPLDS	66 / 9 AA	95
Phosphosite 4:	Smad2	Q15796	S458	KVLTQMGSPSVRCSS	100 / 6 AA	52
Phosphosite 5:	SMAD3	P84022	S416	KVLTQMGSPSIRCSS	100 / 6 AA	48
Phosphosite 6:	GLIS3	Q8NEA6	S591	PGHNVQGSPHNPSSQ	100 / 6 AA	84
Phosphosite 7:	TTBK2	Q6IQ55	S1133	TQCKSPGSPHNPKTP	100 / 6 AA	137
Phosphosite 8:	EP300	Q09472	S2271	LLQQQMGSPVQPNPM	75 / 8 AA	264
Phosphosite 9:	CCDC27	Q2M243	S364	GGVSQMGSVHEEGSE	62 / 8 AA	75
Phosphosite 10:	DTX4	Q9Y2E6	S273	PTGTTMGSPASPPGP	66 / 9 AA	67
Phosphosite 11:	DCP1B	Q8IZD4	S337	TGPVQPGSPHNIGTS	75 / 8 AA	68
Phosphosite 12:	DKFZP434B061	Q9UF83	S100	PRASPMGSPHRASPM	71 / 7 AA	59
Phosphosite 13:	HDAC7	Q8WUI4	S283	PRGPILGSPHTPLFL	71 / 7 AA	103
Phosphosite 14:	KIAA1486	Q9P242	S233	SSLSQMGSPAGDPEE	83 / 6 AA	71
Phosphosite 15:	RIMBP3	Q9UFD9	S1134	APPSAKASPHNPGSC	55 / 9 AA	170
Phosphosite 16:	RIMBP3B	A6NNM3	S1134	APPSAKASPHNPGSC	55 / 9 AA	170
Phosphosite 17:	RIMBP3C	A6NJZ7	S1134	APPSAKASPHNPGSC	55 / 9 AA	170
Phosphosite 18:	GRIK3	Q13003	S773	GIGTPMGSPYRDKIT	71 / 7 AA	104
Phosphosite 19:	GRIK2	Q13002	S772	GVGTPMGSPYRDKIT	71 / 7 AA	103
Phosphosite 20:	TFDP1	Q14186	S80	SNTLVVGSPHTPSTH	71 / 7 AA	45