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:	S271
P-Site Sequence:	LHEIIDKSRKEGDTE
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	S271	LHEIIDKSRKEGDTE	100 / 9 AA	74
Phosphosite 1:	HERV-K_19q12 provirus ancestral Gag polyprotein	Q9YNA8	S271	LHEIIDKSRKEGDTE	100 / 9 AA	74
Phosphosite 2:	ERVK6	Q7LDI9	S271	LHEIIDKSRKEGDTE	100 / 9 AA	74
Phosphosite 3:	HERV-K_22q11.21 provirus ancestral Gag polyprotein	P63145	S271	LHEIIDKSRKEGDTE	100 / 9 AA	74
Phosphosite 4:	HERV-K_1q22 provirus ancestral Gag polyprotein	P63130	S271	LHEIIDKSRKEGDTE	100 / 9 AA	74
Phosphosite 5:	HERV-K_6q14.1 provirus ancestral Gag-Pol polyprotein	P63128	S271	LHEIIDKSRKEGDTE	100 / 9 AA	124
Phosphosite 6:	HERV-K_6q14.1 provirus ancestral Gag polyprotein	P63126	S271	LHEIIDKSRKEGDTE	100 / 9 AA	74
Phosphosite 7:	HERV-K_8p23.1 provirus ancestral Gag polyprotein	P62685	S271	LHEIIDKSRKEGDTE	100 / 9 AA	72
Phosphosite 8:	HERV-K_19p13.11 provirus ancestral Gag polyprotein	P62684	S271	LHEIIDKSRKEGDTE	100 / 9 AA	74
Phosphosite 9:	HERV-K_12q14.1 provirus ancestral Gag polyprotein	P62683	S271	LHEIIDKSRKEGDTE	100 / 9 AA	74
Phosphosite 10:	DCAMKL3	Q9C098	S390	AMKIIDKSRLKGKED	77 / 9 AA	69
Phosphosite 11:	SPAG17	Q6Q759	T1889	WKEKIDKTRKEIETT	85 / 7 AA	252
Phosphosite 12:	PIGT	Q969N2	S126	TVTDVDKSWKELSNV	71 / 7 AA	66
Phosphosite 13:	RASA1	P20936	Y426	IGDIIDHYRKEQIVE	75 / 8 AA	116
Phosphosite 14:	GBP6	Q6ZN66	S522	QMEAQDKSRKENIAQ	100 / 6 AA	72
Phosphosite 15:	RSK4	Q9UK32	S460	AVKIIDKSKRDPSEE	62 / 8 AA	84
Phosphosite 16:	ENPP7	Q6UWV6	S157	QGVAVTRSRKEGIAH	62 / 8 AA	51
Phosphosite 17:	RSK3	Q15349	S449	AVKIIDKSKRDPSEE	62 / 8 AA	83
Phosphosite 18:	RSK2	P51812	S456	AVKIIDKSKRDPTEE	62 / 8 AA	84
Phosphosite 19:	ANKRD11	Q6UB99	S1518	PRVLKDKSRDEGPRL	66 / 9 AA	298
Phosphosite 20:	SIK	P57059	T61	AIKIIDKTRLDSSNL	55 / 9 AA	85