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_1q23.3 provirus ancestral Env polyprotein
Human P-Site:	Y256
P-Site Sequence:	TRYRKPFYTIDLNSI
UniProt:	O42043
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_1q23.3 provirus ancestral Env polyprotein	O42043	Y256	TRYRKPFYTIDLNSI	100 / 9 AA	64
Phosphosite 1:	HERV-K_11q22.1 provirus ancestral Env polyprotein	P61570	Y367	TRDRKPFYTVDLNSS	88 / 9 AA	75
Phosphosite 2:	HERV-K_22q11.21 provirus ancestral Env polyprotein	P61566	Y256	TRDRKPFYTVDLNSS	88 / 9 AA	67
Phosphosite 3:	HERV-K_1q22 provirus ancestral Pol protein	P63135	Y1127	TRDCKPFYTIDLNSS	88 / 9 AA	165
Phosphosite 4:	HERV-K_1q22 provirus ancestral Env polyprotein	P61567	Y256	TRDCKPFYTIDLNSS	88 / 9 AA	67
Phosphosite 5:	HERV-K_1q23.3 provirus ancestral Env polyprotein	O42043	T257	RYRKPFYTIDLNSIL	100 / 8 AA	64
Phosphosite 6:	HERV-K_11q22.1 provirus ancestral Env polyprotein	P61570	T368	RDRKPFYTVDLNSSL	87 / 8 AA	75
Phosphosite 7:	HERV-K_22q11.21 provirus ancestral Env polyprotein	P61566	T257	RDRKPFYTVDLNSSL	87 / 8 AA	67
Phosphosite 8:	PLCG1	P19174	Y162	RWLRKQFYSVDRNRE	62 / 8 AA	149
Phosphosite 9:	C7	P10643	Y649	SHPQKPFYTVGEKVT	62 / 8 AA	94
Phosphosite 10:	ZCCHC11	Q5TAX3	Y1620	FQPNKPFYTQDRCAT	85 / 7 AA	185
Phosphosite 11:	C7	P10643	T650	HPQKPFYTVGEKVTV	71 / 7 AA	94
Phosphosite 12:	RICS	A7KAX9	T867	EKLSPFFTLDLSPTE	71 / 7 AA	231
Phosphosite 13:	RGSL1	A5PLK6	Y40	VFGQTPFYTVENSQW	50 / 8 AA	126
Phosphosite 14:	KIAA2012	Q0VF49	Y77	CSNRKEFYTRKLHID	66 / 9 AA	65
Phosphosite 15:	AZIN1	O14977	T67	AQIKPFYTVKCNSAP	83 / 6 AA	50
Phosphosite 16:	OR4A15	Q8NGL6	Y266	EGKRKAFYTCASHVT	62 / 8 AA	39
Phosphosite 17:	AKTIP	Q9H8T0	Y186	MYARRVFYKIDTASP	62 / 8 AA	33
Phosphosite 18:	RGSL1	A5PLK6	T41	FGQTPFYTVENSQWS	57 / 7 AA	126
Phosphosite 19:	C1orf100	Q5SVJ3	Y106	RDYSLPFYEIDWNQK	71 / 7 AA	18
Phosphosite 20:	NME4	O00746	Y94	DLRRKPFYPALIRYM	100 / 5 AA	21