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:	S256
P-Site Sequence:	PQIMPSISSRDVQPV
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	S256	PQIMPSISSRDVQPV	100 / 9 AA	52
Phosphosite 1:	Smad5	Q99717	S257	QIMPSISSRDVQPVA	100 / 8 AA	52
Phosphosite 2:	Smad5	Q99717	S254	MIPQIMPSISSRDVQ	100 / 7 AA	52
Phosphosite 3:	NBEA	Q8NFP9	S1221	SDGMSSISERDLASS	66 / 9 AA	328
Phosphosite 4:	SAGE1	Q9NXZ1	S382	TADMPAMSTRDQHAT	62 / 8 AA	99
Phosphosite 5:	POLR3D	P05423	S45	GRLPSIRSRDLTLGG	75 / 8 AA	44
Phosphosite 6:	Plxna1	Q9UIW2	S1827	IAKMPAISDQDMSAY	55 / 9 AA	211
Phosphosite 7:	LHX2	P50458	S46	ETTMPSISSDRAALC	100 / 6 AA	44
Phosphosite 8:	LHX2	P50458	S44	DTETTMPSISSDRAA	100 / 6 AA	44
Phosphosite 9:	TOR1AIP1	Q5JTV8	S319	GNQSPSTSSRQVTGQ	75 / 8 AA	66
Phosphosite 10:	C21orf2	O43822	S203	RGQFPSLSARDASSS	55 / 9 AA	28
Phosphosite 11:	BBX	Q8WY36	S177	LWAFPSDSSRDLPSP	66 / 9 AA	105
Phosphosite 12:	SAGE1	Q9NXZ1	S147	AAGIPSMSTRDLHST	55 / 9 AA	99
Phosphosite 13:	TNKS1BP1	Q9C0C2	S877	RDSLGTYSSRDVSLG	55 / 9 AA	182
Phosphosite 14:	SAGE1	Q9NXZ1	S476	GASIPAMSSRDLYAT	55 / 9 AA	99
Phosphosite 15:	ITIH5L	Q6UXX5	S638	DTIMPSSSSRHGLGV	75 / 8 AA	143
Phosphosite 16:	IL6ST	P40189	S743	SSRPSISSSDENESS	85 / 7 AA	104
Phosphosite 17:	KLHL24	Q6TFL4	S374	VSGGRINSRDVWIYN	83 / 6 AA	68
Phosphosite 18:	TTBK2	Q6IQ55	S855	TVGTSEISSRDIDPH	83 / 6 AA	137
Phosphosite 19:	CCDC116	Q8IYX3	S417	TKKKPLPSISSKSSM	71 / 7 AA	57
Phosphosite 20:	ZFP36L1	Q07352	S80	GEPAPALSSRDSRFR	71 / 7 AA	36