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_11q22.1 provirus ancestral Env polyprotein
Human P-Site:	S514
P-Site Sequence:	NSTRLWNSQSSIDQK
UniProt:	P61570
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_11q22.1 provirus ancestral Env polyprotein	P61570	S514	NSTRLWNSQSSIDQK	100 / 9 AA	75
Phosphosite 1:	HERV-K_1q22 provirus ancestral Pol protein	P63135	S1274	NSTRLWNSQSSIDQK	100 / 9 AA	165
Phosphosite 2:	HERV-K_1q22 provirus ancestral Env polyprotein	P61567	S403	NSTRLWNSQSSIDQK	100 / 9 AA	67
Phosphosite 3:	HERV-K_22q11.21 provirus ancestral Env polyprotein	P61566	S403	NSTRLWNSQSSIDQK	100 / 9 AA	67
Phosphosite 4:	HERV-K_1q23.3 provirus ancestral Env polyprotein	O42043	S403	NSTRLWNSQSSIDQK	100 / 9 AA	64
Phosphosite 5:	HERV-K_16p3.3 provirus ancestral Env polyprotein	Q9NX77	S338	NSSRLWNSQAQIDQK	77 / 9 AA	55
Phosphosite 6:	MAPKBP1	O60336	T428	NTIRLWNTESSGVHG	75 / 8 AA	164
Phosphosite 7:	HERV-K_1q22 provirus ancestral Pol protein	P63135	S1276	TRLWNSQSSIDQKLA	100 / 7 AA	165
Phosphosite 8:	HERV-K_11q22.1 provirus ancestral Env polyprotein	P61570	S516	TRLWNSQSSIDQKLA	100 / 7 AA	75
Phosphosite 9:	HERV-K_1q22 provirus ancestral Env polyprotein	P61567	S405	TRLWNSQSSIDQKLA	100 / 7 AA	67
Phosphosite 10:	HERV-K_22q11.21 provirus ancestral Env polyprotein	P61566	S405	TRLWNSQSSIDQKLA	100 / 7 AA	67
Phosphosite 11:	HERV-K_1q23.3 provirus ancestral Env polyprotein	O42043	S405	TRLWNSQSSIDQKLA	100 / 7 AA	64
Phosphosite 12:	VPS37A	Q8NEZ2	S39	LIESLRNSHSSIAEI	75 / 8 AA	44
Phosphosite 13:	FRMD4A	Q9P2Q2	S667	RGLPHWNSQSSMPST	85 / 7 AA	115
Phosphosite 14:	FRMD4A	Q9P2Q2	S669	LPHWNSQSSMPSTPD	85 / 7 AA	115
Phosphosite 15:	UNC13C	Q8NB66	S537	DATPLWHSQSDFFTA	55 / 9 AA	251
Phosphosite 16:	Ets-2	P15036	S298	SLLQSWNSQSSLLDV	85 / 7 AA	53
Phosphosite 17:	CCDC48	Q9HA90	S227	LQVGLWKSQASTHEM	62 / 8 AA	18
Phosphosite 18:	WDR65	Q96MR6	Y418	RSIRLWNYETNTLEL	44 / 9 AA	78
Phosphosite 19:	PVRIG	Q6DKI7	T110	ARQARWETQSSISLI	71 / 7 AA	34
Phosphosite 20:	PVRIG	Q6DKI7	S112	QARWETQSSISLILE	71 / 7 AA	34