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:	S258
P-Site Sequence:	LNPMAPPSRQGSELH
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	S258	LNPMAPPSRQGSELH	100 / 9 AA	74
Phosphosite 1:	ERVK6	Q7LDI9	S258	LNPTAPPSRQGSKLH	88 / 9 AA	74
Phosphosite 2:	HERV-K_22q11.21 provirus ancestral Gag polyprotein	P63145	S258	LNPTAPPSRQGSELH	88 / 9 AA	74
Phosphosite 3:	HERV-K_1q22 provirus ancestral Gag polyprotein	P63130	S258	LNPTAPPSRQGSELH	88 / 9 AA	74
Phosphosite 4:	HERV-K_6q14.1 provirus ancestral Gag-Pol polyprotein	P63128	S258	LNPTAPPSRQGSELH	88 / 9 AA	124
Phosphosite 5:	HERV-K_6q14.1 provirus ancestral Gag polyprotein	P63126	S258	LNPTAPPSRQGSELH	88 / 9 AA	74
Phosphosite 6:	HERV-K_8p23.1 provirus ancestral Gag polyprotein	P62685	S258	LNPTAPPSRQGSELH	88 / 9 AA	72
Phosphosite 7:	HERV-K_19p13.11 provirus ancestral Gag polyprotein	P62684	S258	LNPTAPPSRQGSELH	88 / 9 AA	74
Phosphosite 8:	HERV-K_12q14.1 provirus ancestral Gag polyprotein	P62683	S258	LNPTAPPSRQGSELH	88 / 9 AA	74
Phosphosite 9:	HERV-K_19q12 provirus ancestral Gag polyprotein	Q9YNA8	S258	LNPTAPPSRRGSELH	77 / 9 AA	74
Phosphosite 10:	DUX4	Q9UBX2	T303	QGVLAPPTSQGSPWW	66 / 9 AA	45
Phosphosite 11:	TOR1AIP1	Q5JTV8	S50	PAYRTPPSRQGRREV	75 / 8 AA	66
Phosphosite 12:	KCNN3	Q9UGI6	S129	TAILHPSSRQGSQLN	66 / 9 AA	82
Phosphosite 13:	REV3	O60673	S1886	KPLMSPPSREEIMAT	62 / 8 AA	353
Phosphosite 14:	LYSMD1	Q96S90	S5	___MASPSRQPPPGG	85 / 7 AA	25
Phosphosite 15:	VPS13B	Q7Z7G8	S1823	QHRIARPSRQSSIVK	66 / 9 AA	449
Phosphosite 16:	PARP11	Q9NR21	S292	SKYMRPPSKDGSYVN	66 / 9 AA	39
Phosphosite 17:	TNXA	Q16473	S269	VNWMPPPSRADSFKV	66 / 9 AA	34
Phosphosite 18:	TNXB	P22105	S3826	VNWMPPPSRADSFKV	66 / 9 AA	464
Phosphosite 19:	SPIRE1	Q08AE8	S539	VRQFLPPSRQSSRSL	85 / 7 AA	86
Phosphosite 20:	ZNF541	Q9H0D2	S441	HKPSAVPSREGSESG	75 / 8 AA	148