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:	PHF21B
Human P-Site:	Y328
P-Site Sequence:	RKRLASNYLNNPLFL
UniProt:	Q96EK2
Intern. Prot. ID:	IPI00738578

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PHF21B	Q96EK2	Y328	RKRLASNYLNNPLFL	100 / 9 AA	57
Phosphosite 1:	PHF21B	Q96EK2	S326	TERKRLASNYLNNPL	100 / 7 AA	57
Phosphosite 2:	LRRC63	Q05C16	Y480	PCFWRDNYLNNPQQL	100 / 6 AA	66
Phosphosite 3:	SYNE2	Q8WXH0	Y2133	TLHLASTYLSHQEKL	55 / 9 AA	796
Phosphosite 4:	TEX11	Q8IYF3	Y275	LRLLATNYLDWDDTK	71 / 7 AA	108
Phosphosite 5:	SNX2	O60749	S196	GLHSKLASKYLHVGY	71 / 7 AA	58
Phosphosite 6:	TMTC2	Q8N394	S562	GSRPTLASAYLNTGI	85 / 7 AA	94
Phosphosite 7:	EnvK4 protein	Q9UKH3	Y63	LTQLATKYLENTKVT	62 / 8 AA	79
Phosphosite 8:	HERV-K_19p13.11 provirus ancestral Env polyprotein	Q902F9	Y63	LTQLATKYLENTKVT	62 / 8 AA	79
Phosphosite 9:	EnvK6	Q902F8	Y63	LTQLATKYLENTKVT	62 / 8 AA	79
Phosphosite 10:	ERVK6	Q69384	Y63	LTQLATKYLENTKVT	62 / 8 AA	79
Phosphosite 11:	ERVK6	Q69383	Y63	LTQLATKYLENTKVT	62 / 8 AA	12
Phosphosite 12:	HERV-K_11q22.1 provirus Rec protein	P61579	Y63	LTQLATKYLENTKVT	62 / 8 AA	12
Phosphosite 13:	HERV-K_8p23.1 provirus Rec protein	P61575	Y63	LTQLATKYLENTKVT	62 / 8 AA	12
Phosphosite 14:	HERV-K_19p13.11 provirus Rec protein	P61574	Y63	LTQLATKYLENTKVT	62 / 8 AA	12
Phosphosite 15:	HERV-K_6q14.1 provirus Rec protein	P61573	Y63	LTQLATKYLENTKVT	62 / 8 AA	12
Phosphosite 16:	HERV-K_19q12 provirus Rec protein	P61572	Y63	LTQLATKYLENTKVT	62 / 8 AA	12
Phosphosite 17:	HERV-K_12q14.1 provirus Rec protein	P61571	Y62	LTQLATKYLENTKVT	62 / 8 AA	12
Phosphosite 18:	HERV-K_11q22.1 provirus ancestral Env polyprotein	P61570	Y63	LTQLATKYLENTKVT	62 / 8 AA	75
Phosphosite 19:	EnvK1	P61565	Y62	LTQLATKYLENTKVT	62 / 8 AA	79
Phosphosite 20:	HERV-K_19q12 provirus ancestral Env polyprotein	O71037	Y63	LTQLATKYLENTKVT	62 / 8 AA	79