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:	S507
P-Site Sequence:	PAGSDVISEYVKACD
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	S507	PAGSDVISEYVKACD	100 / 9 AA	74
Phosphosite 1:	HERV-K_19q12 provirus ancestral Gag polyprotein	Q9YNA8	S507	PAGSDVISEYVKACD	100 / 9 AA	74
Phosphosite 2:	ERVK6	Q7LDI9	S507	PAGSDVISEYVKACD	100 / 9 AA	74
Phosphosite 3:	HERV-K_22q11.21 provirus ancestral Gag polyprotein	P63145	S507	PAGSDVISEYVKACD	100 / 9 AA	74
Phosphosite 4:	HERV-K_1q22 provirus ancestral Gag polyprotein	P63130	S507	PAGSDVISEYVKACD	100 / 9 AA	74
Phosphosite 5:	HERV-K_6q14.1 provirus ancestral Gag-Pol polyprotein	P63128	S507	PAGSDVISEYVKACD	100 / 9 AA	124
Phosphosite 6:	HERV-K_6q14.1 provirus ancestral Gag polyprotein	P63126	S507	PAGSDVISEYVKACD	100 / 9 AA	74
Phosphosite 7:	HERV-K_8p23.1 provirus ancestral Gag polyprotein	P62685	S507	PAGSDVISEYVKACD	100 / 9 AA	72
Phosphosite 8:	HERV-K_19p13.11 provirus ancestral Gag polyprotein	P62684	S507	PAGSDVISEYVKACD	100 / 9 AA	74
Phosphosite 9:	HERV-K_12q14.1 provirus ancestral Gag polyprotein	P62683	S507	PAGSDVISEYVKACD	100 / 9 AA	74
Phosphosite 10:	HERV-K_19q12 provirus ancestral Gag polyprotein	Q9YNA8	Y509	GSDVISEYVKACDGM	100 / 7 AA	74
Phosphosite 11:	HERV-K_19p13.11 provirus ancestral Gag polyprotein	P62684	Y509	GSDVISEYVKACDGM	100 / 7 AA	74
Phosphosite 12:	GNPAT	O15228	Y226	YWAVFSEYVKTMLRN	85 / 7 AA	77
Phosphosite 13:	NANS	Q9NR45	S201	DVNLRVISEYQKLFP	85 / 7 AA	40
Phosphosite 14:	NANS	Q9NR45	Y203	NLRVISEYQKLFPDI	85 / 7 AA	40
Phosphosite 15:	VWDE	Q8N2E2	S669	IPELDVTSEYINSDT	62 / 8 AA	177
Phosphosite 16:	MCF2	P10911	Y768	DEVGITEYVKGDNRK	83 / 6 AA	108
Phosphosite 17:	Syk	P43405	Y131	KENLIREYVKQTWNL	71 / 7 AA	72
Phosphosite 18:	NEB	P20929	S3033	KASRDVISDYKYKDG	71 / 7 AA	773
Phosphosite 19:	MCF2	P10911	T766	KMDEVGITEYVKGDN	83 / 6 AA	108
Phosphosite 20:	CST2	P09228	S53	RALHFVISEYNKATE	85 / 7 AA	16