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_19q12 provirus ancestral Gag polyprotein
Human P-Site:	Y220
P-Site Sequence:	WPPAELQYRPPLESQ
UniProt:	Q9YNA8
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_19q12 provirus ancestral Gag polyprotein	Q9YNA8	Y220	WPPAELQYRPPLESQ	100 / 9 AA	74
Phosphosite 1:	ERVK6	Q7LDI9	Y220	WPPAELQYRPPPESQ	100 / 8 AA	74
Phosphosite 2:	HERV-K_5q33.3 provirus ancestral Gag polyprotein	P87889	Y220	WPLAELQYRPPPESQ	100 / 8 AA	74
Phosphosite 3:	HERV-K_22q11.21 provirus ancestral Gag polyprotein	P63145	Y220	WPPAELQYRPPPESQ	100 / 8 AA	74
Phosphosite 4:	HERV-K_1q22 provirus ancestral Gag polyprotein	P63130	Y220	WPPAELQYRPPPESQ	100 / 8 AA	74
Phosphosite 5:	HERV-K_6q14.1 provirus ancestral Gag-Pol polyprotein	P63128	Y220	WPPAELQYRPPPESQ	100 / 8 AA	124
Phosphosite 6:	HERV-K_6q14.1 provirus ancestral Gag polyprotein	P63126	Y220	WPPAELQYRPPPESQ	100 / 8 AA	74
Phosphosite 7:	HERV-K_8p23.1 provirus ancestral Gag polyprotein	P62685	Y220	WPPAELQYRPPPESQ	100 / 8 AA	72
Phosphosite 8:	HERV-K_12q14.1 provirus ancestral Gag polyprotein	P62683	Y220	WPPAELQYRPPPESQ	100 / 8 AA	74
Phosphosite 9:	SPATA2L	Q8IUW3	Y259	SPPAELAYRPPLWEQ	88 / 9 AA	46
Phosphosite 10:	HERV-K_19p13.11 provirus ancestral Gag polyprotein	P62684	Y220	WPPAELQYQPPPESQ	87 / 8 AA	74
Phosphosite 11:	WASF3	Q9UPY6	Y286	SQAAEHEYRPPSASA	75 / 8 AA	55
Phosphosite 12:	CES1	P23141	Y451	TYMYEFQYRPSFSSD	62 / 8 AA	63
Phosphosite 13:	ERVK5	Q9HDB9	Y220	WPPAELQYLPPPESQ	87 / 8 AA	74
Phosphosite 14:	GABRB1	P18505	Y404	YDSASIQYRKPLSSR	66 / 9 AA	54
Phosphosite 15:	FAM47DP	A6NHR8	Y274	EWVSELQYRIKLDEM	66 / 9 AA	47
Phosphosite 16:	CTTN	Q14247	Y433	SFKAELSYRGPVSGT	66 / 9 AA	62
Phosphosite 17:	MUC4	Q99102	Y1995	MVISEFQYRPRGPVI	71 / 7 AA	232
Phosphosite 18:	BSN	Q9UPA5	Y2501	ELAQNGQYWPPLTHA	83 / 6 AA	416
Phosphosite 19:	SMYD1	Q8NB12	Y157	DVDTFLQYWPPQSQQ	83 / 6 AA	57
Phosphosite 20:	CTTN	Q14247	S432	ASFKAELSYRGPVSG	75 / 8 AA	62