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:	HERV-K_5q33.3 provirus ancestral Gag polyprotein
Human P-Site:	S439
P-Site Sequence:	DPGSTCPSFNTVRQG
UniProt:	P87889
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	HERV-K_5q33.3 provirus ancestral Gag polyprotein	P87889	S439	DPGSTCPSFNTVRQG	100 / 9 AA	74
Phosphosite 1:	HERV-K_19q12 provirus ancestral Gag polyprotein	Q9YNA8	S439	DPGSTCPSFNTVRQG	100 / 9 AA	74
Phosphosite 2:	ERVK6	Q7LDI9	S439	DPGSTCPSFNTVRQG	100 / 9 AA	74
Phosphosite 3:	HERV-K_1q22 provirus ancestral Gag polyprotein	P63130	S439	DPGSTCPSFNTVRQG	100 / 9 AA	74
Phosphosite 4:	HERV-K_6q14.1 provirus ancestral Gag-Pol polyprotein	P63128	S439	DPGSTCPSFNTVRQG	100 / 9 AA	124
Phosphosite 5:	HERV-K_6q14.1 provirus ancestral Gag polyprotein	P63126	S439	DPGSTCPSFNTVRQG	100 / 9 AA	74
Phosphosite 6:	HERV-K_8p23.1 provirus ancestral Gag polyprotein	P62685	S439	DPGSTCPSFNTVRQG	100 / 9 AA	72
Phosphosite 7:	HERV-K_19p13.11 provirus ancestral Gag polyprotein	P62684	S439	DPGSTCPSFNTVRQG	100 / 9 AA	74
Phosphosite 8:	HERV-K_12q14.1 provirus ancestral Gag polyprotein	P62683	S439	DPGSTCPSFNTVRQS	100 / 9 AA	74
Phosphosite 9:	HERV-K_22q11.21 provirus ancestral Gag polyprotein	P63145	S439	DPGSACPSFNTVRQG	88 / 9 AA	74
Phosphosite 10:	HERV-K_19q12 provirus ancestral Gag polyprotein	Q9YNA8	T442	STCPSFNTVRQGSKE	100 / 6 AA	74
Phosphosite 11:	ERVK6	Q7LDI9	T442	STCPSFNTVRQGSKE	100 / 6 AA	74
Phosphosite 12:	HERV-K_5q33.3 provirus ancestral Gag polyprotein	P87889	T442	STCPSFNTVRQGSKE	100 / 6 AA	74
Phosphosite 13:	HERV-K_22q11.21 provirus ancestral Gag polyprotein	P63145	T442	SACPSFNTVRQGSKE	100 / 6 AA	74
Phosphosite 14:	HERV-K_1q22 provirus ancestral Gag polyprotein	P63130	T442	STCPSFNTVRQGSKE	100 / 6 AA	74
Phosphosite 15:	HERV-K_6q14.1 provirus ancestral Gag-Pol polyprotein	P63128	T442	STCPSFNTVRQGSKE	100 / 6 AA	124
Phosphosite 16:	HERV-K_6q14.1 provirus ancestral Gag polyprotein	P63126	T442	STCPSFNTVRQGSKE	100 / 6 AA	74
Phosphosite 17:	HERV-K_8p23.1 provirus ancestral Gag polyprotein	P62685	T442	STCPSFNTVRQGSKE	100 / 6 AA	72
Phosphosite 18:	HERV-K_19p13.11 provirus ancestral Gag polyprotein	P62684	T442	STCPSFNTVRQGSKE	100 / 6 AA	74
Phosphosite 19:	HERV-K_12q14.1 provirus ancestral Gag polyprotein	P62683	T442	STCPSFNTVRQSSKE	100 / 6 AA	74
Phosphosite 20:	LIPH	Q8WWY8	T21	SRSDAEETCPSFTRL	100 / 5 AA	51