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:	DUX4
Human P-Site:	S304
P-Site Sequence:	GVLAPPTSQGSPWWG
UniProt:	Q9UBX2
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	DUX4	Q9UBX2	S304	GVLAPPTSQGSPWWG	100 / 9 AA	45
Phosphosite 1:	DUX4	Q9UBX2	T303	QGVLAPPTSQGSPWW	100 / 8 AA	45
Phosphosite 2:	TREX1	Q9NSU2	S105	ALESPPTSQGPPPTV	77 / 9 AA	39
Phosphosite 3:	piccolo	Q9Y6V0	S922	APSQPPTSQGPPKST	87 / 8 AA	567
Phosphosite 4:	TUBB4Q	Q99867	T274	MPGFAPLTSQGSQQY	87 / 8 AA	48
Phosphosite 5:	TUBB4Q	Q99867	S275	PGFAPLTSQGSQQYR	87 / 8 AA	48
Phosphosite 6:	FAM123C	Q8N944	S533	QPAAPPGSQGAPRAP	77 / 9 AA	90
Phosphosite 7:	Pax2	Q02962	T348	YPPHVPPTGQGSYPT	75 / 8 AA	45
Phosphosite 8:	C13orf23	Q86XN7	S440	PLPLPPTSQGLSNPT	100 / 6 AA	96
Phosphosite 9:	C13orf23	Q86XN7	T439	LPLPLPPTSQGLSNP	100 / 6 AA	96
Phosphosite 10:	HERV-K_5q33.3 provirus ancestral Gag polyprotein	P87889	S258	LNPMAPPSRQGSELH	75 / 8 AA	74
Phosphosite 11:	TREX1	Q9NSU2	T104	CALESPPTSQGPPPT	85 / 7 AA	39
Phosphosite 12:	ZNF750	Q32MQ0	Y532	AATHEPTYQGSPQAE	85 / 7 AA	77
Phosphosite 13:	piccolo	Q9Y6V0	T921	PAPSQPPTSQGPPKS	100 / 6 AA	567
Phosphosite 14:	ERVK6	Q7LDI9	S258	LNPTAPPSRQGSKLH	75 / 8 AA	74
Phosphosite 15:	HERV-K_22q11.21 provirus ancestral Gag polyprotein	P63145	S258	LNPTAPPSRQGSELH	75 / 8 AA	74
Phosphosite 16:	HERV-K_1q22 provirus ancestral Gag polyprotein	P63130	S258	LNPTAPPSRQGSELH	75 / 8 AA	74
Phosphosite 17:	HERV-K_6q14.1 provirus ancestral Gag-Pol polyprotein	P63128	S258	LNPTAPPSRQGSELH	75 / 8 AA	124
Phosphosite 18:	HERV-K_6q14.1 provirus ancestral Gag polyprotein	P63126	S258	LNPTAPPSRQGSELH	75 / 8 AA	74
Phosphosite 19:	HERV-K_8p23.1 provirus ancestral Gag polyprotein	P62685	S258	LNPTAPPSRQGSELH	75 / 8 AA	72
Phosphosite 20:	HERV-K_19p13.11 provirus ancestral Gag polyprotein	P62684	S258	LNPTAPPSRQGSELH	75 / 8 AA	74